Features: new and high quality Aluminum and plastics material. Connector type: 4-pin 4-wires connector, no soldering is required. High quality, each fan is tested before shipment and works normally. Original fan, easy to install and remove. Precise adaptation, no extra-operations required. Specifications: Type :CPU GPU fan Material: Metal Voltage: DC5V 0.4A Connection: 4-pin 4-wires For : Dell Alienware 17 R4 R5 P31E ALW17C Laptop 04RFW1 Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: A/B/C (optional) A: 1PC x CPU Fan B: 1PC x GPU Fan C: 1Pair x CPU GPU Fan