Sapphire Radeon Nitro+ RX 580 8GB GDDR5 Dual HDMI/DVI-D/Dual DP w/backplate (UEFI) PCI-E Graphics Card. System requirement: 500 watt power supply (suggestion). 1 x 8-pin + 1 x 6-pin (optional) AUX power connector. CD-ROM or DVD-ROM drive for installing software. OS: Windows 10, Windows 7.