StarTech.com 12in 4 Pin PWM Fan Extension Power Y Cable - F/M Motherboards 100% COPPER WIRING: Each CAT6

100% COPPER WIRING: Each CAT6 Ethernet cable is built with 100% copper wiring to prevent weak power delivery and equipment damage

Those are some serious specs

4-pair unshielded twisted pair (UTP) cable

Multi-mode (MMF) & Single mode (SMF) Fiber Comp

Save directly to a USB flash drive

StarTech.com 12in 4 Pin PWM Fan Extension Power Y Cable - F/M Motherboards 100% COPPER WIRING: Each CAT6StarTech. com 12in 4 Pin PWM Fan Extension Power Y Cable F M The FAN4SPLIT12 Fan Power Splitter Cable enables you to connect two 4 pin (PWM) fans to a single motherboard power connector, which allows you to optimize your computer cooling capability. Providing a flexible way to position computer case fans as needed, this 4 pin Fan Power Splitter cable offers a connection length of 1ft, eliminating the need to strain the connection between the computer