Specifications: Made of premium material, durable and safe, good performance. Used to solve the problem that ordinary fans cannot be used for Dell motherboards. One end connects to standard 4-pin PWM fans (supports PWM temperature control speed regulation) or 3-pin fans (no speed control), while the other end connects to Dell motherboards 5-pin proprietary socket. Type: Fan Conversion Cable Material: Copper Compatible with: Dell PCs Features: 5-pin to 4-pin conversion, easy to install, durable Length: 17.5 cm / 6.89 inches (approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight dimensional variations due to manual measurement. Package Includes: 1 x Fan Conversion Cable