The ARCTIC 4-Pin PWM Fan Splitter Cable is a PC fan splitter that lets you connect up to four compatible case fans to one motherboard fan header. It is designed for users who need more fan connections for better airflow but have limited fan headers available on the motherboard.

This splitter cable allows you to connect up to 4 case fans to a single compatible fan header. Before connecting four fans, check the total current draw of all fans and make sure it does not exceed the safe limit of your motherboard fan header.

The ARCTIC splitter has 1 x 4-pin PWM connector for the motherboard fan header and 4 x 4-pin PWM fan sockets for connecting fans. The RPM signal is read from the first fan socket only.

PWM stands for Pulse Width Modulation. It allows the motherboard to control fan speed more accurately by sending a control signal to compatible 4-pin PWM fans. With this splitter, the same PWM control signal is sent to all connected PWM fans so they adjust speed together.

PST stands for PWM Sharing Technology. It means the PWM control signal from one motherboard fan header can be shared across multiple connected fans, allowing them to follow the same fan curve instead of needing separate motherboard headers.

All connected fans receive the same control signal, but they may not show exactly the same RPM if the fan models are different. For the most consistent results, use the same fan model and size on the splitter. Mixed fans may respond differently to the same PWM or voltage signal.

No. A splitter sends one shared control signal to all connected fans. You cannot create separate fan curves for each individual fan using this cable. If you want independent fan control, connect fans to separate motherboard headers or use a more advanced fan controller.

This is normal. The ARCTIC splitter only feeds the RPM signal from the first fan socket back to the motherboard. This avoids multiple fans sending conflicting RPM signals to one header. The other fans can still receive power and control signal, but their RPM is not individually reported.

Connect one of your main working fans to the first socket because that is the fan whose RPM will be reported to the motherboard. For best results, connect the same model of fan to all splitter sockets so the reported RPM is a good indication of how the other fans are behaving.

Yes. This splitter is designed for 4-pin PWM case fans. It allows compatible 4-pin fans to receive the same PWM speed-control signal from one motherboard fan header.

Yes. ARCTIC states that the cable is also compatible with 3-pin fans and connectors. With 3-pin fans, speed control is normally handled by voltage control rather than PWM, and the fourth PWM pin remains unused.

It may work, but it is not ideal. 3-pin and 4-pin fans use different speed-control methods, so mixed fans may not behave consistently on the same fan curve. For the best control and predictable airflow, use matching 4-pin PWM fans together where possible.

No. This is a fan power and speed-control splitter, not an RGB or ARGB lighting splitter. It controls fan motor power and fan speed only. RGB and ARGB lighting require separate RGB/ARGB connectors, headers, hubs, or controllers.

No. This ARCTIC cable is for 4-pin PWM fan control. It is not a 5V 3-pin ARGB splitter and not a 12V 4-pin RGB splitter. Do not confuse fan motor connectors with lighting connectors because they are used for different purposes.

No. If your fans have RGB or ARGB lighting, the lighting cable must be connected separately to a compatible RGB/ARGB header or controller. This splitter only handles fan power, fan speed control, and one RPM feedback signal.

It can be safe if the combined current draw of all connected fans stays within the safe limit of the motherboard fan header. ARCTIC advises using a powered fan hub if the total power consumption exceeds 1A or if you want to connect more than four fans.

If the combined fan current is too high, it may overload the motherboard fan header. This can cause unstable fan operation or, in the worst case, damage the fan header. Always check the current rating of each fan and the maximum current supported by your motherboard header.

Check the current rating printed on each fan label or in the fan specification, usually shown in amps such as 0.12A, 0.20A, or 0.30A. Add the current of all connected fans together. If the total is close to or above your motherboard header limit, use a powered fan hub instead.

Use a powered fan hub if you want to connect more than four fans, if the total fan current exceeds the safe limit of one motherboard header, or if you want the fans to draw power directly from SATA power rather than from the motherboard fan header.

No. This splitter does not use SATA power. It draws fan power from the connected motherboard fan header. If you need SATA-powered fan support, choose a powered fan hub such as an ARCTIC Case Fan Hub instead.

Yes, but it is usually better to use the CPU_FAN header for the CPU cooler fan or radiator fans. For case fans, it is normally better to use a SYS_FAN, CHA_FAN, or CASE_FAN header. If using the CPU_FAN header, make sure the main CPU cooler fan is monitored correctly to avoid BIOS fan warnings.

Yes. This is the most common use. Connect the splitter to a motherboard system fan header, then connect your case fans to the splitter. You can then control the connected fans using BIOS or motherboard fan-control software.

Yes, it can be used for radiator fans if the fans are compatible and the combined power draw is within the motherboard header limit. For an AIO cooler, follow the cooler manufacturer’s instructions because pump and radiator fan connections can vary by model.

Yes, it can be used for multiple CPU cooler or radiator fans if the cooler setup requires it. Make sure one fan reports RPM to the motherboard and that the total current does not overload the fan header. For high-power fans or multiple radiator fans, a powered hub may be safer.

It should work with most standard PC motherboards that have 3-pin or 4-pin fan headers. For best PWM control, use a 4-pin fan header and compatible 4-pin PWM fans. Always check your motherboard manual for fan header current limits and control settings.

Yes, ARCTIC states that voltage control is possible with 3-pin fans and connectors. However, with a 3-pin motherboard header, you normally get voltage-based fan speed control rather than PWM control. Fan behaviour depends on your motherboard’s fan-control options.

Check that the splitter is connected to a 4-pin PWM-capable header, that the fans are 4-pin PWM fans, and that the BIOS fan mode is set to PWM rather than DC where appropriate. Also check that the fan curve is configured correctly and that the fans are connected firmly to the splitter.

3-pin fans need voltage control to change speed. If the motherboard header is set to PWM-only mode, 3-pin fans may run at full speed. Enter BIOS or motherboard software and check whether the header can be changed to DC or voltage control mode.

This is expected. A single fan header can normally read one RPM signal. The ARCTIC splitter sends the RPM signal from only the first fan socket to avoid conflicting readings. The other fans are still powered and controlled, but they will not appear as separate fans in BIOS or software.

Some splitter designs only allow one fan to send the RPM/tach signal back to the motherboard. This prevents multiple fans sending different RPM readings to the same header. The missing signal pin does not necessarily mean the fan cannot be powered or controlled.

The splitter itself should not reduce fan performance if the motherboard header can supply enough power and the fan curve is configured correctly. If too many high-current fans are connected, the header may be overloaded or fans may behave unpredictably, so check total current draw.

The splitter does not directly make fans louder. Noise depends on fan speed, fan model, case airflow, dust filters, and fan curve settings. Because all connected fans follow the same control signal, you may need to adjust the fan curve to balance cooling and noise.

Yes, you can connect different fan sizes such as 120mm and 140mm fans, but they may not spin at the same RPM or respond identically to the same control signal. For best results, connect matching fans with similar specifications.

Yes, but different fan brands and models may have different RPM ranges, power draw, starting voltage, and PWM response. The setup may still work, but matching fans are usually better for predictable airflow and noise control.

Yes. This splitter can be used with compatible ARCTIC 4-pin PWM fans such as P12 PWM and P14 PWM models, as long as the total current draw stays within the safe limit of the connected motherboard fan header.

If your ARCTIC fans already include PST daisy-chain connectors, you may not need an additional splitter for those fans. However, this cable can still be useful when connecting multiple standard PWM fans that do not have built-in daisy-chain connectors.

The ARCTIC 4-Pin PWM Fan Splitter Cable has a total cable length of approximately 700mm. The distance to the first fan socket is approximately 400mm, with spacing between the fan sockets designed to help route fans in different areas of the case.

Yes. The cable is black, making it easier to blend into most modern PC builds and cable-management areas, especially in black gaming cases or airflow-focused cases with visible interiors.

No. ARCTIC intentionally uses a slim, flexible cable design without extra sheathing. This keeps the cable easier to route through tight spaces and easier to hide behind the motherboard tray or around case edges.

Yes. The long cable length and slim design make it easier to route multiple case fans neatly from one motherboard header. It can help reduce clutter and avoid stretching individual fan cables across the motherboard.

Yes, you can use more than one splitter if you connect them to separate fan headers and stay within each header’s power limit. Avoid chaining too many fans from one header unless you have checked the current draw carefully.

It may physically work, but it is not recommended unless you have calculated the total current draw and confirmed it is safe for the fan header. If you need to run many fans, use a powered fan hub instead of daisy-chaining multiple passive splitters.

It can work with high-performance fans, but high-speed fans often draw more current. Check the current rating of each fan before connecting several high-performance fans to one motherboard header. A powered hub may be better for high-current fans.

Yes. It is useful for gaming PCs where you want to add extra case fans for improved airflow but do not have enough motherboard fan headers. It is especially helpful for front intake fans, top exhaust fans, or multiple fans that can share one fan curve.

Yes, if the office PC needs extra case fans and has a compatible fan header. For simple office systems with only one or two low-power fans, this splitter can be a low-cost way to add airflow without needing a separate fan hub.

Yes. The splitter itself does not cool the PC, but it allows you to connect more case fans, which can improve airflow when the fans are positioned correctly. Better intake and exhaust airflow can help reduce CPU, GPU, motherboard, and storage temperatures.

A common setup is to connect multiple front intake fans to one splitter and control them together from one motherboard header. Another option is to connect top or rear exhaust fans together. Try to group fans with similar jobs and similar fan models on the same splitter.

It is usually better to group similar fans together. For example, front intake fans can use one splitter and top/rear exhaust fans can use another header or splitter. This gives better control over case airflow and helps avoid all fans reacting exactly the same when different areas need different airflow.

Before buying, check that your motherboard has a compatible 3-pin or 4-pin fan header, your fans use standard case fan connectors, the total fan current stays within the header limit, and you only need shared fan control rather than individual control for each fan.

This cable is best for PC builders who want to connect up to four case fans to one motherboard fan header, improve airflow, keep cable management tidy, and control several fans together using one fan curve.

This splitter is not the best choice if you need to connect more than four fans, if your fans draw more current than the motherboard header can safely provide, if you want separate speed control for each fan, or if you need RGB/ARGB lighting control. In those cases, a powered fan hub or lighting controller may be better.

Choose the ARCTIC PWM splitter if you only need to connect up to four low-power fans and the total current is within the motherboard header limit. Choose a powered fan hub if you need to connect more fans, power higher-current fans, or avoid drawing all fan power from one motherboard header.

A 4-pin PWM splitter is usually better for modern PWM fans because it supports PWM speed control. A 3-pin splitter is mainly for voltage-controlled fans. The ARCTIC 4-pin PWM splitter also supports 3-pin fans, making it more flexible for mixed or older fan setups.