Description

Two fans, one header.

A sleek, black-PCB Y-splitter that lets your Bitaxe drive two 4-pin PWM fans from a single header. Purpose-built and designed by I Am GPIO, it keeps your build tidy while preserving speed feedback on one fan: the left-side connector reports RPM.

Highlights

• Black PCB – clean, pro finish that matches premium builds.

• Two fans, one header – rigid PCB Y-split for reliable, compact routing.

• RPM feedback preserved – left output = tach/RPM passthrough.

• True 4-pin PWM pass-through – Power, Ground, PWM, Tach correctly mapped.

• Miner-ready – robust traces and components for 24/7 operation.

How to Install

1. Power off your Bitaxe.

2. Plug the splitter into the Bitaxe 4-pin fan header.

3. Connect the fan you want monitored to the left output (RPM reported).

4. Connect the second fan to the right output.

5. Power on and confirm RPM is detected for the left fan.

Notes

• Shared control: Both fans receive the same PWM signal; only the left fan returns RPM.

• For best results, use matching fans (same model/speed).

FAQ

Q: Will both fans report RPM?
A: No—only the left port passes tach to keep readings stable.

Q: Can I mix different fans?
A: You can, but matching fans give better acoustics and control.

Q: Does this increase fan power?
A: It splits one header; it doesn’t boost power. Stay within the header’s current limit.