and Features: Aluminum and plastic material. Compatible with Dell Latitude E7440 E7420 Fan DC28000D7SL DPN: 006PX9 Radiator. Connector type: 4-pin 4-wires connector, no soldering is required. Direct Current: DC 5V or 0.4A. , each fan is tested before shipment and works normally. Specifications: Material: metal Direct Current: DC 5V or 0.4A Color : black Connection: 4-pin 4-wires Compatible with: Dell latitude E7440 E7420 Part number: DC28000D7SL DPN: 006PX9 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: 1 x Cooling Fan Note: 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.