TP-LINK
TP-LINK TL-MR6400 V5 300Mbps Wireless N 4G LTE Router, SIM Card Slot, 3 LAN, 1 LAN/WAN
- SKU:
- TL-MR6400
- UPC:
- 6935364092771
- MPN:
- TL-MR6400
- Availability:
- In Stock
Frequently bought together:
Description
TP-Link TL-MR6400 V5 4G LTE Router – N300 Wi-Fi, SIM Slot, 3× LAN + 1× LAN/WAN, Cat4 150Mbps
Summary: The TP-Link TL-MR6400 (V5) is a plug-and-play 4G LTE Cat4 router with a built-in modem and SIM slot. Insert a SIM card to share mobile broadband with up to 32 Wi-Fi devices while also connecting wired devices via 3× Fast Ethernet LAN plus 1× Fast Ethernet LAN/WAN. It broadcasts N300 (300Mbps) 2.4GHz Wi-Fi and includes 2 detachable external 4G LTE antennas for more stable coverage.
The TL-MR6400 V5 is ideal for homes, caravans, temporary sites, student accommodation, and small offices where fixed broadband isn’t available (or as a backup). Setup is simple: insert your SIM and power on. When you do have wired internet available, you can switch to Wi-Fi Router mode by plugging an Ethernet cable into the LAN/WAN port for flexible connectivity.
Key benefits
- 4G LTE Cat4 – mobile broadband download speeds up to 150Mbps (network dependent)
- Share with up to 32 devices over Wi-Fi
- N300 Wi-Fi (2.4GHz) – up to 300Mbps for everyday browsing, streaming, and work-from-home
- Stronger LTE reception – 2× detachable external 4G antennas
- Flexible WAN backup – Ethernet LAN/WAN port supports router mode when 4G isn’t used
Ports & hardware
- Ethernet: 3× 10/100 LAN + 1× 10/100 LAN/WAN
- SIM slot: SIM card slot (SIM size can vary by hardware revision/region—confirm your SIM format before installation)
- Buttons: WPS/Reset, Wi-Fi On/Off
- Power: 9V / 0.85A
- Size: 174 × 124.5 × 33.5 mm
Network & security features
- Wireless security: WPA/WPA2 + WPA-PSK/WPA2-PSK (WEP also listed)
- Parental controls + Access Control device allow/deny lists
- IPv4 & IPv6 support
- VPN passthrough: PPTP / L2TP / IPSec (as listed)
- Port forwarding: Virtual Server, Port Triggering, DMZ, UPnP (as listed)
4G/3G compatibility (bands)
TP-Link lists support for FDD-LTE Cat4 and TDD-LTE bands (coverage depends on your mobile network and location).
In the box
- TP-Link TL-MR6400 300Mbps Wireless N 4G LTE Router
- Power adapter
- RJ45 Ethernet cable
- Quick installation guide
Warranty: 3 Years (as listed).
Type: 4G Router
Connectivity: Wireless
Wi-Fi Rating: N300
Max Single Band Wi-Fi Rate: 300 Mbps
Max Wired Transfer Rate: 10/100 Mbps
Bands: Single Band
Signal Rate: 300Mbps at 2.4GHz
Interface(s):
3 x 10/100Mbps LAN Ports
1 x 10/100Mbps LAN/WAN Port
1 x SIM Card Slot
1 x 10/100Mbps LAN/WAN Port
1 x SIM Card Slot
Standards: IEEE 802.11b, 802.11g, 802.11n
Frequency: 2.4GHz
Button(s): WPS/Reset Button, WiFi on/off Button
Power Supply: 9V/0.85A
Antenna(s): 2 x Detachable External 4G LTE Antennas
Dimensions: 174 x 124.5 x 33.5 mm
Wireless Functions;
Enable/Disable Wireless Radio, Wireless Schedule, WMM,
Wireless Statistics
Security
64/128-bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK encryptions
DHCP: Server, Client, DHCP Client List, Address Reservation
Port/NAT Forwarding: Virtual Server, Port Triggering, UPnP, DMZ
VPN Support:
VPN Passthrough: PPTP, L2TP, IPSec
VPN Server: PPTP VPN, OpenVPN
VPN Server: PPTP VPN, OpenVPN
Management: Access Control, Local Management, Remote Management
Dynamic DNS: TP-Link DDNS, DynDns, NO-IP
USB Application: -
Additional Features: See Overview
Package Contents:
300Mbps Wireless N 4G LTE Router
Power Adapter
RJ45 Ethernet Cable
Quick Installation Guide
Power Adapter
RJ45 Ethernet Cable
Quick Installation Guide
Package Type: Retail
Package Weight: 0.7700 kg
Warranty: 3 Years
Specification
Type: 4G Router
Connectivity: Wireless
Wi-Fi Rating: N300
Max Single Band Wi-Fi Rate: 300 Mbps
Max Wired Transfer Rate: 10/100 Mbps
Bands: Single Band
Signal Rate: 300Mbps at 2.4GHz
Interface(s):
3 x 10/100Mbps LAN Ports
1 x 10/100Mbps LAN/WAN Port
1 x SIM Card Slot
1 x 10/100Mbps LAN/WAN Port
1 x SIM Card Slot
Standards: IEEE 802.11b, 802.11g, 802.11n
Frequency: 2.4GHz
Button(s): WPS/Reset Button, WiFi on/off Button
Power Supply: 9V/0.85A
Antenna(s): 2 x Detachable External 4G LTE Antennas
Dimensions: 174 x 124.5 x 33.5 mm
Wireless Functions:
Enable/Disable Wireless Radio, Wireless Schedule, WMM,
Wireless Statistics
Wireless Statistics
Security: 64/128-bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK encryptions
DHCP: Server, Client, DHCP Client List, Address Reservation
Port/NAT Forwarding: Virtual Server, Port Triggering, UPnP, DMZ
VPN Support:
VPN Passthrough: PPTP, L2TP, IPSec
VPN Server: PPTP VPN, OpenVPN
VPN Server: PPTP VPN, OpenVPN
Management: Access Control, Local Management, Remote Management
Dynamic DNS: TP-Link DDNS, DynDns, NO-IP
USB Application: -
Additional Features: See Description
Package Contents:
300Mbps Wireless N 4G LTE Router
Power Adapter
RJ45 Ethernet Cable
Quick Installation Guide
Power Adapter
RJ45 Ethernet Cable
Quick Installation Guide
Package Type: Retail
Package Weight: 0.7700 kg
Warranty: 3 Years
Return
30 Days Free Return
FAQ: Frequently Asked Questions
FAQ: Frequently Asked Questions
1) Is the TL-MR6400 V5 unlocked and will it work with UK SIMs (EE, Three, Vodafone, O2)?
Yes. It is not carrier-locked and supports FDD-LTE bands B1/B3/B7/B8/B20 and TDD-LTE B38/B40/B41 used by major UK networks. Insert a compatible data SIM and it typically auto-detects the APN. Check local mast bands and coverage for the best performance.
2) What SIM card size does the V5 use?
V5/V5.2 uses a nano-SIM. If your SIM is micro or standard, use an adapter.
3) Does it have 5 GHz Wi-Fi?
No. The TL-MR6400 V5 is single-band 2.4 GHz (802.11n) up to 300 Mb/s. For dual-band, consider a higher-tier model like Archer MR600.
4) What 4G speed can I expect?
It is a 4G LTE Cat-4 router (up to 150 Mb/s download / 50 Mb/s upload). Real-world speeds depend on signal quality, congestion, bands in use, and your plan.
5) How many devices and Ethernet ports are supported?
Up to 32 Wi-Fi clients. Wired: 3 × 10/100 LAN and 1 × 10/100 LAN/WAN port.
6) Can I connect an external 4G antenna? Which connector type?
Yes. It has two detachable LTE antenna ports (SMA female). Use a 2×2 MIMO pair with SMA-male plugs and replace both antennas together for best results.
7) Can I use it with fixed broadband (as a normal router) or for 4G backup?
Yes. Plug your broadband modem into the LAN/WAN port and run Wireless Router mode. You can also set 3G/4G as failover backup if the primary WAN drops.
8) Does it support true Bridge / IP-Passthrough or WDS?
The stock firmware offers NAT routing modes (3G/4G Router or Wireless Router). It does not provide a dedicated bridge or WDS mode. For pass-through-like setups, many users combine DMZ/port forwarding with WAN failover on their main router.
9) Can I send/receive SMS and manage APN settings?
Yes. The web interface lets you view/send SMS and edit APN profiles if auto-detect does not pick up your carrier.
10) Is there a mobile app for quick setup and management?
Yes. Use the TP-Link Tether app (iOS/Android) for onboarding, Wi-Fi settings, device list, parental controls and more.
11) Does it support VPN/remote access features?
It supports PPTP/OpenVPN server, VPN pass-through, DDNS (TP-Link, DynDNS, NO-IP) and common port-forwarding rules. Note: many mobile networks use CG-NAT, which can limit inbound connections unless your provider offers a public or static IP add-on.
12) What's the power spec and size?
Power: 9 V DC, 0.85 A. Size: 174 × 124.5 × 33.5 mm.
13) Will it work inside a metal cabinet or remote outbuilding?
Metal enclosures severely attenuate mobile signal and Wi-Fi. If you must place the router inside, route both LTE antenna leads to an outdoor MIMO antenna (SMA-male) and consider a separate indoor access point for better Wi-Fi coverage.