Features: It is often used for computer for case fan connection line, so that three computer fans share one interface, and can be connected to small 4-pin or small 3-pin fans. This wire has a small 4Pin interface, and 4 wires can actually be used. Because the big 4Pin interface is a power supply wire, only 2 wires are needed, so only two wires are used. Purpose: CPU plug (3Pin/4Pin) is not enough, or the motherboard 3Pin/4Pin interface current is not enough, etc. Mainly to extend and expand the motherboard 3Pin/4Pin interface. Save money. With a Molex plug, you can power 4 chassis fans and help you organize your wires better. This will minimize the number of Molex cables you need to put in the protective sleeve. Specifications: Material:Oxygen-free Copper Length:Approx.27cm/10.62inches Color:Black Interface type: Big 4Pin Converter type: HUB/hub Wire model: 1007 24AWG Conductor specification: 11x0.12TS Conductor Material: tinned copper Wire outer diameter: OD1.4mm Rated temperature: 80 Product voltage: 12V Product interface: one end is a large 4Pin D-type connector for the power supply, and the other four ends are a fan 4Pin interface Product function: make the computer motherboard CPU fan use the big 4Pin interface to supply power Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Power Cable