Long Fan Splitter Extension Cable: every 4pin fan cable was produced with 50cm length, which is enough for the power supply connection from motherboard to cooling fans. Besides, it would make cable management easier on the inside and make your DIY PC computer case easier. Broad Compatibility: this PWM fan splitter cable can provide the power supply for computer cooling fans, CPU coolers, GPU fans, PWM fans, ATX case, 3pin/4pin cooling fans etc. Easy to plug: with nylon braided cable jacket, the fan power extension cable offers greater flexibility and it make the connection easier between motherboard and cooling fans. Safe and Reliable: this extending fan cables is constructed with pure copper conductors, flexible nylon braided for reliable performance on supporting computer cooling fans with sufficient power supply