Uses: CPU plug (3Pin/4Pin) is not enough, or motherboard 3Pin/4Pin interface current is not enough, etc. Mainly to extend and expand the motherboard 3Pin/4Pin interface.Computer case fan extension line D port large 4 Pin to small 3/4p pin fan line one-to-one transfer wiring package network.Only the power adapter cable supplies power from the PSU, PWM fan speed control is not supported.[product name]: large 4Pin to small 4Pin fan interface adapter cable (with nylon woven mesh)[Product length]: full length 27CM, line length about 23CM[Wire model]: 1007 26AWG[Insulation material]: PVC insulation[Conductor specification]: 7/0.14TS[Conductor material]: tinned copper[Wire outer diameter]: OD 1.3mm[Rated temperature]: 70[Wire color]: color[Product weight]: 50g[product interface]: one end is a large 4pin connector, and the other end is a small 4pin interface[Product function]: Make the computer motherboard CPU fan use the large 4Pin interface to supply powerColour: BlackPackage Contents:10 * Fan interface adapter cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.