Braided 4 Pin PWM Case Fan Extension Y Split Cable One to Two Header 25cm Black It is a fan accessory Y-Cables for 4-pin PWM fans.
The Y-Cables make it possible to run two 4-pin PWM fans on a single fan header
and to let the mainboard control the speed of both fans simultaneously.
**Please note that the second split end only has 3pins (missing the third pin) as the motherboard can only detect one speed from the first case fan.
**if you after a 3pin fan splitter, can look into our product in below link:
http://stores.ebay.com.au/xcomputec?_dmd=1&_nkw=3pin+fan+split
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