Specifications: Made of premium material, durable and safe, good performance. Used to solve the problem that ordinary fan can not be used for Dell motherboard. One head can be plugged into ordinary 4 pin temperature control fans (support PWM temperature control speed regulation) or ordinary 3 pin mute fans (not support speed regulation), the other head is plugged into for DELL motherboard 5 hole special socket. Type: Fan Conversion Cable Material: Copper Compatible with: for Dell PC Features: 5Pin to 4Pin, Easy to Install, Durable Length: 17.5cm/6.89" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Fan Conversion Cable