Features: new and high quality Aluminum and plastic material. for HP Elitebook 740 745 755 840 850 855 ZBook 14 G1 G2 730792-001 Radiator. Connector type: 4-pin 4-wires connector, no soldering is required. Direct Current: for DC 5V / 0.5A . High quality, each fan is tested before shipment and works normally. Specifications: Material: Metal Direct Current: DC 5V / 0.5A Connection: 4-pin 4-wires for: for HP Elitebook 740 745 755 840 850 855 ZBook 14 G1 G2 730792-001 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: 1PC x Laptop Cooling Fan