New in original packaging. Authentic, original, genuine item. Please see all pictures. Item from a climate controlled, smoke-free, pet-free building. Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black. Item dimensions L x W x H. 6.3 x 5.91 x 3.39 inches. 80 Plus Gold certified for lower power consumption, less noise and cooler temperatures. For maximum cooling surface area and performance. Zero RPM fan mode for near silent operation at low to medium loads; Continuous output rated temperature: 50°C. 100 percent industrial grade, 105°C rated Japanese capacitors ensure unwavering power and reliability. Fully modular cables, so you only connect the cables your system needs. Fan size-5.3 inches. Modern Standby Compatible- No.