Compare to APW3++ 935% conversion effeciency , APW7 PSU is 95% conversion efficiency, which mean APW7 save more electricity fee,Efficiency, very quiet, stable performance. The APW7 can work stably in environments with a 50 ambient temperature. If temperatures exceed 50, the PSU should be underclocked. Considering the high temperature in mining operations, all internal components are with a standard of 105, so the APW7 has a much longer lifespan than a universal use PSU under similar high temperatures. Perfect function for protecting Miners, when circut is malfunction or supply has higher inside temperature, it will shut off automatically to protectincluding Over Voltage Protection, Under Voltage Protection, Over Current Protection, Over Protection, and Short Circuit Protection. One APW7 can up one S9i, one L3++, one D3, one V9, one X3, one E3 or one Z9 mini. This APW7 has 5 pairs of 6 pin PCI-E connectors (ie. 10 connectors) ,Support back wiring, easy for user to install machine, effective wear . As with other mining equipment, the cooling fan and cord interface are located at the front of the supply, allowing for easy heat dissipation throughout the mine. APW7 can guarantee the stability of the cryptocurrency mining rig operation and can match the common load demand within 12V 1800W, making it Perfect for situations requiring high such as bitcoin mining. Features: DC Voltage: 120V Rated Current (Input 220V): 150A Rated (input 220V): 1800W Rated Current (Input 110V): 833A Rated (input 110V): 1000W Start-Up Time: Less than 2 seconds of retention time: more than 10ms Voltage Range:100-264V AC Frequency Range: 47-63 hz factor: greater than 099 (full load) Leakage Current: Less than 15mA Note: Please confirm this item is the right model you need before placing order. colour: silver Material: metal Package Contents: 1 supply with cables Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.