ASUS AMD Radeon EX RX580 8GB 2048SP GDDR5 Graphics Video Card DP DVI HDMI | eBay
Amazon.com: RX 580 Graphics Card, 8GB GDDR5 256bit Video Gaming Graphics Card with 3*DisplayPort HDMI DVI Output, Support 8K 16 x PCI Express 3.0, Dual Cooling Fans Gaming Graphics Card for Home
Hands-on: Gigabyte's portable RX 580 'Gaming Box' eGPU packs a punch despite its small size [Video] - 9to5Mac
PowerColor Red Dragon Radeon™ RX 580 8GB GDDR5 - PowerColor