Item no.: 2310051 High-speed aluminum fan in a classy design. The fan's aluminum housing ensures optimum heat dissipation to prevent the speed controller from overheating. The fan's brushless motor provides up to 28,000 rpm (8.4V) - values that can never be achieved with a coreless motor. SPECS: T6 Aluminum Brushless Motor Silicon Cable Reverse Polarity Protected Plug: JST / BEC 2Pin for RX/Bat. connection Wire Length: 180mm Speed: 28.000RPM Input Voltage: 5-8.4V (2S LiPo) Current: 0.6A Color: Black Housing with Silver Cuttings Installation hole spacing: 25mm Size: 30 x 30 x 10mm Weight: 15g