1. 1 points and 5 interfaces, one-time solution to the embarrassment that the motherboard fan interface is not plugged enough! 2. Expand the 3-pin/4-pin interface of the 5-bit fan to solve the lack of the motherboard interface and centrally handle the fan wire. 3. The pwm interface is connected to the motherboard cpu fan interface, the first cpu fan dedicated interface. 4. The FAN1/FAN2/FAN3/FAN4 ports are pwm conventional fan ports. 5. This product is a hub, and its function is to expand the single four-pin port of the motherboard into multiple ports. If your fan is a 3-pin fan, you can also plug it in, but it cannot achieve PWM speed control! Be sure to pay attention! [product name]: motherboard small 4PIN fan one point five HUB hub (with woven mesh) [Product length]: The total length is about 41CM [Extended quantity]: 5 [Wire Type]: 1007 22AWG [Insulation material]: PVC insulation [Conductor specification]: 17/0.14TS [Conductor material]: tinned copper [Wire outer diameter]: OD 1.6mm [Rated temperature]: 80 [Product weight]: 75 grams [Product Interface]: One end of the computer motherboard 4Pin interface, the other end of the 5 4Pin sockets. [Product function]: Make 5 computer fans share a 4Pin interface [Product Features]: Support multi-channel PWM fans, compatible with 3PIN, 4PIN fans, support chassis wiring, with adhesive backing, you can fix the hub on the chassis. [Scope of application]: Suitable for 12V 3PIN/4PIN fans. Colour: black Material: PVC+tinned copper Package Contents: 5 x Motherboard Small 4PIN Fan One Point Five HUB Hub Only 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.