Samsung P9 Express 512GB microSD Express Card – 800MB/s Read, 310MB/s Write, Nintendo Switch 2 Compatible

The Samsung P9 Express 512GB microSDXC Express memory card brings PCI Express and NVMe storage technology to the compact microSD format. Designed for next-generation gaming and other compatible high-performance devices, the P9 Express delivers sequential read speeds of up to 800MB/s and sequential write speeds of up to 310MB/s on the 512GB model.

This exact MB-MK512T/WW version is compatible with the Nintendo Switch 2 and provides 512GB of additional storage for supported digital games, downloadable content and other compatible data. Samsung combines a PCIe Gen 3.0 ×1 interface with NVMe 1.3, SD 7.1, Host Memory Buffer support and Dynamic Thermal Guard technology to provide fast, stable performance in demanding gaming workloads.

The P9 Express is also backward compatible with compatible UHS-I microSDXC devices. When used in a conventional UHS-I host, however, transfer performance is limited to the capabilities of that interface rather than the card's full SD Express speed.

Quick answer: The Samsung P9 Express MB-MK512T/WW is a 512GB microSDXC Express card designed for Nintendo Switch 2 and other compatible microSD Express devices. It offers up to 800MB/s sequential read and 310MB/s sequential write performance in SD Express mode, uses PCIe Gen 3.0 ×1 and NVMe 1.3 technology, supports HMB and Dynamic Thermal Guard, and carries U3, V30 and A1 ratings for backward-compatible UHS-I operation.

Key Features of the Samsung P9 Express 512GB

• 512GB microSDXC Express memory card
• Samsung P9 Express series
• Exact model: MB-MK512T/WW
• EAN / GTIN-13: 8806097644200
• Nintendo Switch 2 compatible
• SD Express technology
• PCI Express Gen 3.0 ×1 interface
• NVMe 1.3 protocol
• SD 7.1 specification
• UHS-I backward compatibility
• Up to 800MB/s sequential read
• Up to 310MB/s sequential write – 512GB version
• UHS-I fallback read performance up to 90MB/s
• UHS Speed Class 3 / U3
• Video Speed Class 30 / V30
• Application Performance Class A1
• Class 10 classification
• Samsung V-NAND TLC flash memory
• Samsung-listed SM2708 controller
• Host Memory Buffer / HMB support
• Dynamic Thermal Guard / DTG
• Up to 65K random read IOPS in SD Express mode
• Up to 52K random write IOPS in SD Express mode
• Samsung Magician software support
• Water resistant under Samsung test conditions
• Temperature resistant
• X-ray resistant
• Magnet resistant
• Drop resistant
• Wear resistant
• Up to 10,000 insertion/removal cycles under Samsung testing
• Dimensions approximately 15 × 11 × 1mm
• Weight approximately 0.25g
• 3-year limited Samsung warranty

Designed for Nintendo Switch 2

The Samsung P9 Express is designed for next-generation portable gaming and is officially described by Samsung as compatible with the Nintendo Switch 2.

Nintendo Switch 2 uses the newer microSD Express standard for expandable game storage rather than relying on conventional UHS-I microSD cards.

Why Nintendo Switch 2 Needs microSD Express

microSD Express technology provides substantially greater storage bandwidth than traditional microSD cards.

This is important for modern games because the storage device may need to handle:

• Large game installations
• Game updates
• Downloadable content / DLC
• High-resolution game assets
• Frequent data access
• Large digital game libraries

Nintendo states that microSD Express is required because its faster access speeds help ensure games run smoothly on Nintendo Switch 2.

Conventional microSD Cards Are Not Enough for Switch 2 Game Storage

Standard microSD, microSDHC and conventional microSDXC cards without microSD Express capability cannot be used normally to store and load Nintendo Switch 2 digital games.

A compatible microSD Express card, such as the Samsung P9 Express, is required for expandable Switch 2 game storage.

Important First-Time Nintendo Switch 2 Setup

Nintendo states that a system update via the internet is required the first time a microSD Express card is used with Nintendo Switch 2.

After installing the card, follow the instructions displayed by the console and ensure the system software is up to date.

512GB Additional Gaming Storage

The Samsung P9 Express provides an advertised storage capacity of:

512GB

This provides substantial additional capacity for digital games and downloadable content without needing to constantly remove older titles to create space.

Useful for Growing Digital Game Libraries

Modern games can consume tens or even hundreds of gigabytes of storage depending on the title.

An additional 512GB can therefore be valuable for players who:

• Purchase games digitally
• Keep multiple games installed
• Download large updates
• Use downloadable content
• Share a console with several players

Actual Available Capacity Is Lower Than 512GB

Samsung states that 1GB equals 1 billion bytes for advertised capacity.

The usable capacity shown by the console, operating system or computer will be lower than the labelled 512GB because some capacity is used for formatting, system files and storage-management functions.

Up to 800MB/s Sequential Read Speed

The headline performance specification of the P9 Express is its sequential read speed of:

Up to 800MB/s

Samsung states that this is up to four times faster than its conventional UHS-I microSD cards under its internal testing conditions.

Why Fast Read Speed Matters for Gaming

Read speed affects how quickly stored information can be retrieved from the card.

For a compatible gaming device, faster storage can help with tasks such as:

• Loading game data
• Opening installed titles
• Accessing large game assets
• Installation workflows
• Updates
• Moving and managing large files

Actual game loading performance also depends on the console, game software and workload.

Up to 310MB/s Sequential Write Speed

Samsung's current specification for the 512GB P9 Express lists a sequential write speed of:

Up to 310MB/s

Write speed is relevant whenever data is being saved to or installed on the card, including game downloads, updates and file transfers.

512GB Version Has the Faster P9 Express Write Specification

Samsung specifies different maximum sequential write speeds across the P9 Express capacities:

• 256GB P9 Express: up to 200MB/s write
• 512GB P9 Express: up to 310MB/s write

This page is specifically for the 512GB MB-MK512T/WW, so 310MB/s is the correct maximum write specification.

What Is microSD Express?

microSD Express is a newer generation of the microSD standard that brings PCI Express and NVMe technology into the familiar microSD card form factor.

Traditional high-performance microSD cards commonly rely on the UHS bus. microSD Express adds a much faster PCI Express interface that can provide performance closer to compact SSD storage.

PCI Express Technology in a microSD Card

The Samsung P9 Express uses:

PCIe Gen 3.0 ×1

This provides the high-bandwidth connection used for SD Express performance in a compatible host.

NVMe 1.3 Protocol

The card also uses:

NVMe 1.3

NVMe is the same broad storage protocol family commonly associated with high-performance PCI Express SSDs.

Using PCIe and NVMe allows the P9 Express to offer substantially greater performance than conventional UHS-I microSD storage.

SD 7.1 Standard

Samsung lists the P9 Express with support for the SD 7.1 specification.

This combines SD Express functionality with backward-compatible SD operation.

Dual-Mode Performance: SD Express and UHS-I

One of the most useful aspects of the P9 Express is that it can operate differently depending on the host device.

In a microSD Express Host

When installed in a compatible SD Express host, such as Nintendo Switch 2, the card can use its PCIe / NVMe interface and access its much higher performance capability.

Samsung specifies:

• Sequential read: up to 800MB/s
• Sequential write: up to 310MB/s on the 512GB version

In a UHS-I Host

Samsung also provides backward compatibility with compatible UHS-I devices.

In UHS-I mode, Samsung lists sequential read performance of approximately:

Up to 90MB/s

The card therefore cannot reach its 800MB/s Express performance when used in a UHS-I-only device.

Backward Compatible with UHS-I Devices

Samsung describes the P9 Express as suitable for compatible devices with microSDXC slots, including:

• Gaming consoles
• Smartphones
• Tablets
• Action cameras
• Drones
• Laptops
• Other compatible microSDXC hosts

However, compatibility does not automatically mean full SD Express performance.

Host Device Determines the Available Speed

A conventional UHS-I device accesses the card using UHS-I rather than PCI Express.

Performance can therefore be limited by:

• Host-device interface
• Card reader
• Operating system
• USB connection
• Workload
• Destination storage device

Compatible with Original Nintendo Switch – With a Speed Limitation

A microSD Express card can also be recognised by compatible original Nintendo Switch systems.

However, Nintendo states that on the original Nintendo Switch, a microSD Express card operates at the same type of speed available from conventional microSD storage.

The original Switch therefore does not use the Samsung P9 Express card's full PCIe / NVMe performance.

Nintendo Switch 2 vs Original Nintendo Switch

• Nintendo Switch 2: requires microSD Express for expandable game storage and can use the Express interface.
• Original Nintendo Switch: can use compatible microSD Express cards but operates them at conventional microSD speeds.

This distinction is important when comparing the P9 Express with a cheaper UHS-I card.

Samsung V-NAND TLC Flash

The P9 Express uses Samsung V-NAND TLC flash memory.

TLC stands for triple-level cell and refers to the NAND flash technology used to store data inside the card.

Samsung manufactures flash storage products across SSD, memory-card and embedded-storage categories, allowing technologies developed for its high-performance storage portfolio to be used in products such as P9 Express.

Samsung SM2708 Controller

Samsung's current technical specification identifies the card controller as:

SM2708

The controller manages communication between the NAND flash and the host interface and supports the card's PCIe, NVMe and SD functionality.

Host Memory Buffer / HMB Support

The P9 Express supports Host Memory Buffer, or HMB.

HMB is an NVMe feature that allows compatible storage to make controlled use of host-system memory for selected management operations.

Samsung highlights HMB as part of the technologies used to provide responsive storage performance in the P9 Express.

Dynamic Thermal Guard Technology

High-speed PCIe storage can generate more heat than conventional low-speed flash media.

Samsung therefore incorporates Dynamic Thermal Guard / DTG technology into the P9 Express.

What Does Dynamic Thermal Guard Do?

Samsung states that DTG helps keep the card at optimal temperatures and maintain steady performance during demanding workloads.

This is especially relevant to applications such as:

• Long gaming sessions
• Large installations
• Game updates
• Large file transfers
• Repeated storage access

SSD Technology in a microSD Form Factor

The P9 Express brings together several technologies more commonly associated with SSDs:

• PCI Express
• NVMe
• Host Memory Buffer
• Dynamic Thermal Guard
• Samsung V-NAND

These technologies allow a card measuring only around 15 × 11mm to provide dramatically greater performance than a traditional UHS-I microSD card when used with the appropriate host.

Random Read and Write Performance

Samsung also publishes random I/O performance for the P9 Express rather than only sequential transfer figures.

SD Express Random Performance – QD32

• 4KB Random Read: up to 65K IOPS
• 4KB Random Write: up to 52K IOPS

SD Express Random Performance – QD1

• 4KB Random Read: up to 9K IOPS
• 4KB Random Write: up to 30K IOPS

Why Random Performance Matters

Games and applications do not always access one large continuous file.

They may need to retrieve many smaller pieces of information from different locations on the storage device.

Random I/O performance therefore helps describe how well the storage handles smaller, scattered data requests.

U3 Speed Class

The P9 Express carries the UHS Speed Class 3 / U3 rating for its conventional SD operating mode.

U3 defines a minimum sustained sequential write class of:

30MB/s

Video Speed Class V30

The card is also rated:

V30

Video Speed Class V30 specifies a minimum sustained sequential write class of:

30MB/s

This rating is useful when the card is used in a compatible camera operating through its conventional SD interface.

Application Performance Class A1

Samsung lists the P9 Express as A1.

Application Performance Class ratings relate to random-access performance for application-type workloads on compatible devices.

The A1 rating is separate from the much higher random I/O figures available when the P9 Express is operating through its PCIe / NVMe Express interface.

Class 10 Memory Card

The P9 Express also carries the established Class 10 SD speed classification.

For this advanced card, however, the PCIe / NVMe Express specification and its measured maximum read/write performance provide much more useful information about its next-generation capabilities.

Suitable for Supported 4K Video Workflows

Samsung states that the P9 Express can also be used in backward-compatible creative devices for capturing and transferring photos and 4K video.

Compatible applications can include:

• Action cameras
• Drones
• Cameras
• Tablets
• Compatible smartphones

Camera Recording Requirements Still Apply

When used for video, always check the camera manufacturer's required:

• Capacity
• UHS class
• Video Speed Class
• Codec
• Bitrate
• Frame rate

The P9 Express carries a V30 rating in conventional SD operation. A camera mode that explicitly requires V60 or V90 should therefore be used with a card carrying the required rating.

Samsung Magician Software Support

The P9 Express is supported by Samsung Magician software.

Samsung states that compatible Magician versions can provide tools to:

• Verify product authenticity
• Monitor storage health
• Benchmark performance
• Manage supported Samsung memory products

Samsung Magician System Requirements

Samsung currently lists Magician support for compatible:

• Windows 10 and later
• macOS High Sierra 10.13 and later

Software functionality and operating-system support can change with future Samsung Magician releases.

Six-Proof Durability

Samsung markets the P9 Express with a six-proof durability design intended to provide additional resilience against common environmental hazards.

The six areas are:

• Water
• Temperature
• X-rays
• Magnetic fields
• Drops
• Repeated insertion and removal

Water Resistance

Samsung tests the P9 Express against water exposure at:

• Depth: up to 1 metre
• Water: 3% NaCl salt water
• Temperature: 25°C
• Duration: up to 72 hours

These are controlled Samsung laboratory test conditions and should not be interpreted as permission for intentional long-term underwater use.

Temperature Resistance

Samsung specifies an operating temperature range of:

0°C to 45°C

and a non-operating / storage temperature range of:

-40°C to 85°C

X-Ray Resistance

The P9 Express is tested against X-ray exposure of up to:

100 mGy

Samsung describes this as comparable to exposure from airport X-ray equipment.

Magnetic Resistance

Samsung tests the card against magnetic fields of up to:

15,000 Gauss for 30 seconds

Samsung compares this level with the magnetic field of a high-field MRI environment under its specified test conditions.

Drop Resistance

Samsung's durability test specifies resistance to:

Drops from up to 1 metre for 10 cycles

This provides additional resilience against accidental handling drops but does not make the card physically indestructible.

Wear Resistance

Samsung specifies durability for up to:

10,000 insertion/removal cycles

This is particularly relevant for users who regularly move a card between a console, computer or card reader.

Compact microSDXC Form Factor

Despite its PCIe and NVMe technology, the P9 Express retains the familiar microSD form factor.

Samsung UK specifies dimensions of approximately:

15 × 11 × 1mm

and a weight of approximately:

0.25g

White P9 Express Design

The Samsung P9 Express uses a distinctive white design with red P9 and microSD Express branding, helping distinguish it visually from many conventional Samsung UHS-I memory cards.

Not the Same as a Conventional Samsung microSD Card

The P9 Express should not be confused with Samsung's conventional UHS-I cards such as:

• Samsung PRO Plus
• Samsung EVO Plus
• Samsung PRO Ultimate
• Samsung PRO Endurance

Those cards target different workloads and interfaces.

The key difference is that P9 Express supports the PCIe / NVMe microSD Express interface required for Nintendo Switch 2 expandable game storage.

P9 Express vs Conventional UHS-I microSD

Samsung P9 Express

• microSD Express
• PCIe Gen 3.0 ×1
• NVMe 1.3
• Up to 800MB/s read
• Up to 310MB/s write on 512GB
• Nintendo Switch 2 compatible
• UHS-I backward compatibility

Conventional UHS-I microSD

• Uses UHS-I interface only
• Does not provide PCIe / NVMe Express mode
• Much lower maximum interface bandwidth
• Not suitable for Nintendo Switch 2 expandable game storage unless specifically microSD Express

P9 Express 512GB vs P9 Express 256GB

Samsung offers the P9 Express in two capacities.

P9 Express 256GB

• 256GB capacity
• Up to 800MB/s sequential read
• Up to 200MB/s sequential write

P9 Express 512GB

• 512GB capacity
• Up to 800MB/s sequential read
• Up to 310MB/s sequential write

The 512GB version therefore provides both twice the advertised storage capacity and a higher manufacturer-listed maximum sequential write speed.

Is the Samsung P9 Express Good for Nintendo Switch 2?

Yes. Samsung specifically designed and markets the P9 Express as compatible with Nintendo Switch 2.

It provides:

• Required microSD Express technology
• 512GB additional capacity
• Up to 800MB/s read performance
• Up to 310MB/s write performance
• Dynamic Thermal Guard
• PCIe / NVMe interface
• Durability protection

It is therefore particularly well suited to users who want to expand a Switch 2 digital game library without relying solely on the console's built-in storage.

Is It Officially Compatible with Nintendo Switch 2?

Samsung's product documentation explicitly states that the P9 Express works with Nintendo Switch 2.

Nintendo separately confirms that Nintendo Switch 2 supports microSD Express cards for expandable storage.

This product should be described as Nintendo Switch 2 compatible.

Important: Compatible Does Not Mean Nintendo-Branded

This is a Samsung P9 Express memory card.

Compatibility with Nintendo Switch 2 should not be confused with a claim that the product is a special Nintendo-branded edition unless the supplied packaging specifically carries such licensing.

Can I Use It in a Phone or Tablet?

Samsung lists smartphones and tablets among compatible device categories where the device supports microSDXC media.

However, many phones and tablets provide only UHS-I interfaces.

In such devices, the card can operate through its backward-compatible SD mode but will not deliver the full 800MB/s SD Express performance.

Can I Use It in a Laptop?

Yes, provided the laptop or card reader supports the relevant microSD format.

For full PCIe / NVMe Express performance, the reader must specifically support microSD Express.

A conventional UHS-I reader will operate at UHS-I speeds.

Can I Use It in an Action Camera or Drone?

Samsung includes action cameras and drones among the general device categories compatible with the P9 Express where a suitable microSDXC slot is available.

However, check the exact manufacturer's requirements because cameras and drones can have specific:

• Maximum capacity limits
• File-system requirements
• UHS classifications
• V30 / V60 / V90 requirements

Not Intended as a High-Endurance Surveillance Card

The Samsung P9 Express is primarily designed for gaming and general high-performance storage.

Samsung specifically states that its limited warranty does not extend to dashcam, CCTV, surveillance-camera and other write-intensive uses.

For continuous video recording, consider a dedicated high-endurance memory card designed and warranted for that workload.

Three-Year Samsung Limited Warranty

Samsung provides the P9 Express with a:

3-year limited warranty

The warranty is subject to Samsung's terms and exclusions.

Important Warranty Exclusion

Samsung explicitly excludes certain write-intensive applications from the standard warranty, including:

• Dash cameras
• CCTV systems
• Surveillance cameras
• Other write-intensive uses

Samsung P9 Express 512GB Technical Overview

• Brand: Samsung
• Series: P9 Express
• Product Type: microSDXC Express Memory Card
• Capacity: 512GB
• MPN: MB-MK512T/WW
• Base Model: MB-MK512T
• Memox SKU: 12176611
• EAN / GTIN-13: 8806097644200
• Colour: White
• Interface: PCIe Gen 3.0 ×1
• NVMe: NVMe 1.3
• SD Standard: SD 7.1
• Backward-Compatible Interface: UHS-I
• Maximum SD Express Read: Up to 800MB/s
• Maximum SD Express Write: Up to 310MB/s – 512GB model
• UHS-I Read: Up to 90MB/s
• Speed Class: U3
• Video Speed Class: V30
• Application Performance Class: A1
• SD Speed Class: Class 10
• NAND: Samsung V-NAND TLC
• Controller: SM2708
• HMB: Host Memory Buffer Supported
• Thermal Management: Dynamic Thermal Guard / DTG
• Random Read 4KB QD32: Up to 65K IOPS in SD Express mode
• Random Write 4KB QD32: Up to 52K IOPS in SD Express mode
• Random Read 4KB QD1: Up to 9K IOPS in SD Express mode
• Random Write 4KB QD1: Up to 30K IOPS in SD Express mode
• Operating Temperature: 0°C to 45°C
• Non-Operating Temperature: -40°C to 85°C
• Magnetic Resistance: Up to 15,000 Gauss for 30 seconds
• X-Ray Resistance: Up to 100mGy
• Water Test: Up to 1m depth, 3% NaCl, 25°C under Samsung test conditions
• Drop Test: Up to 1m, 10 cycles
• Wear Durability: Up to 10,000 mating / insertion cycles
• Dimensions: Approximately 15 × 11 × 1mm
• Weight: Approximately 0.25g
• EMC: CE / UKCA / FCC / VCCI / RCM
• Samsung Magician: Supported
• Nintendo Switch 2: Compatible
• Original Nintendo Switch: Backward compatible at conventional microSD performance
• Warranty: 3-Year Limited Warranty

Important Nintendo Switch 2 Compatibility Note

Nintendo Switch 2 requires microSD Express cards for normal expandable game storage.

The Samsung P9 Express is a genuine microSD Express product and Samsung specifically confirms compatibility with Nintendo Switch 2.

Important First-Use Update Note

Nintendo requires an internet-connected system update the first time a microSD Express card is used with Nintendo Switch 2.

This is normal Switch 2 behaviour and does not indicate a fault with the Samsung memory card.

Important SD Express Speed Note

The advertised 800MB/s read and 310MB/s write specifications require compatible microSD Express / PCIe operation.

A UHS-I-only host cannot achieve these speeds.

Important UHS-I Speed Note

Samsung specifies approximately 90MB/s sequential read in UHS-I mode.

This means customers testing the P9 Express in a conventional UHS-I USB reader should not expect the card to benchmark at 800MB/s.

Important 310MB/s Write-Speed Note

The correct maximum sequential write specification for this exact 512GB MB-MK512T model is:

Up to 310MB/s

The 256GB P9 Express uses a different maximum write specification of up to 200MB/s.

Important V30 Note

V30 is the card's conventional SD Video Speed Class and specifies a minimum sustained sequential write class of 30MB/s.

It should not be confused with the card's much higher maximum SD Express write performance of up to 310MB/s.

Important A1 Note

A1 is the Application Performance Class rating used in compatible conventional SD workloads.

The P9 Express additionally provides much higher random I/O figures when operating through its PCIe / NVMe SD Express interface.

Important 512GB Capacity Note

The usable storage shown by the host will be lower than the advertised 512GB due to formatting, storage management and differences in capacity calculation.

Important Durability Note

Samsung's water, temperature, X-ray, magnet, drop and wear-resistance specifications are based on controlled laboratory testing.

These protections improve resilience but do not guarantee against all forms of physical damage or data loss.

Important files should always be backed up.

Important Dashcam and CCTV Warranty Note

Samsung states that the P9 Express limited warranty does not extend to dashcam, CCTV, surveillance-camera and other write-intensive applications.

For continuous recording, choose an appropriate high-endurance memory card.

Important Barcode Note

The number 8806097644200 currently stored on the Memox product page is a 13-digit EAN / GTIN-13.

It should not be labelled as a 12-digit UPC.

Who Is the Samsung P9 Express 512GB Best For?

• Nintendo Switch 2 owners
• Players with large digital game libraries
• Users downloading frequent DLC and updates
• microSD Express compatible handheld gaming devices
• Users needing faster storage than conventional UHS-I microSD
• Compatible laptops and card readers
• High-performance portable storage workflows
• Users who want 512GB rather than 256GB capacity
• Users wanting Samsung V-NAND storage
• Users wanting Dynamic Thermal Guard
• Users who want Samsung Magician support

Who Should Consider a Different Memory Card?

A different card may be more suitable if you specifically need:

• A dedicated high-endurance dashcam card
• A CCTV / surveillance recording card
• A V60 or V90 camera card
• More than 512GB capacity
• A full-size SD card rather than microSD
• A card for a device that does not support SDXC
• A lower-cost card for a UHS-I-only device where SD Express performance cannot be used

Why Choose the Samsung P9 Express 512GB?

The Samsung P9 Express MB-MK512T/WW is designed for the new generation of devices that need significantly more storage bandwidth than conventional microSD cards can provide.

For Nintendo Switch 2, the most important advantage is straightforward: the console requires microSD Express for normal expandable game storage, and Samsung explicitly confirms the P9 Express as compatible.

The card combines PCIe Gen 3.0 ×1 and NVMe 1.3 technology with Samsung V-NAND TLC flash, providing sequential read speeds of up to 800MB/s and up to 310MB/s sequential write speed on this 512GB model.

Its 512GB capacity gives players substantially more room for digital games, downloadable content and updates, while Dynamic Thermal Guard helps manage temperature during demanding workloads.

Host Memory Buffer support and strong random I/O performance further distinguish the P9 Express from conventional UHS-I memory cards, particularly for application and gaming workloads involving many smaller data accesses.

Backward compatibility also means the card can be used in compatible UHS-I devices when necessary, although those devices operate at much lower UHS-I speeds and cannot access the full PCIe / NVMe performance.

Samsung adds six-proof durability covering water, temperature, X-rays, magnetic exposure, drops and repeated insertion cycles, together with a three-year limited warranty for supported applications.

Choose the Samsung P9 Express 512GB if you want a Nintendo Switch 2 compatible microSD Express card with PCIe/NVMe technology, up to 800MB/s read, up to 310MB/s write, 512GB capacity, Dynamic Thermal Guard and Samsung V-NAND reliability.