PWM Fan Splitter Cable - 30cm - Black
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Product Information
Full details
The kenable 30cm PWM Fan Splitter Cable is an essential tool for PC builders looking to expand their cooling capacity by powering two 4-pin PWM fans from a single motherboard header. It is ideal for users optimizing case airflow or managing cable runs in compact builds; however, users should note that the motherboard will only receive RPM signals from one of the connected fans, making it best suited for identical fan configurations.
All features
| Colour | Black |
|---|---|
| Model Part Number | 006339 |
| Brand | kenable |
Extended Product Information
FAQs
Can I connect two different fan models to this cable?
Yes, it is physically possible, but it is recommended to use identical fans to ensure the motherboard can regulate them effectively under the same PWM signal.
Will this work with 3-pin fans?
It will physically connect, but you will lose the PWM speed control feature. The fans will likely run at a constant speed, depending on your motherboard's ability to control 3-pin fans via voltage.
Is 30cm long enough for a full-tower case?
In most standard mid-tower setups, 30cm is sufficient to reach from a motherboard header to front-mounted fans, but it may be short for very large full-tower cases.
What is the purpose of the 4-pin connector?
The 4th pin is used for the PWM signal, which allows the motherboard to intelligently adjust fan speed based on system temperatures.
Does this cable provide extra power to the fans?
No, it draws power directly from the motherboard header. Ensure your motherboard header is rated for the combined current of both connected fans.
Troubleshooting
Only one fan is spinning
Ensure both fan plugs are fully inserted into the male connectors and that the fans themselves are functional when connected directly to the motherboard.
BIOS shows 0 RPM for connected fans
The RPM signal pin is only passed from one of the two connectors. If the fan on the non-signal side is moving but the speed isn't reported, this is normal behavior for this splitter.
Fans are running at full speed constantly
Verify that your motherboard BIOS is set to 'PWM' mode for the specific header you have used, rather than 'DC' or 'Voltage' mode.
Pros and Cons
Pros
- Simple plug-and-play installation
- Effective for increasing airflow in cases with limited headers
- Generous 30cm length for cable management flexibility
- Lightweight design at only 20g
Cons
- RPM monitoring limited to one fan only
- Total power draw of both fans must not exceed motherboard header limits
- Not suitable for high-amperage industrial fans
Setup, Compatibility & Care
Installation is simple: connect the female 4-pin plug into your motherboard fan header, and connect your two fans into the two male 4-pin sockets on the other end. Ensure the connectors are fully seated for a secure electrical connection. When handling, avoid placing excessive tension on the wires, as internal strain can lead to connection failures. This cable is strictly for 4-pin PWM fans; while it may physically fit 3-pin fans, PWM control functionality may be lost or limited. Always check your motherboard manual to ensure the fan header provides enough current (Amps) to power both fans before connecting.