51RISC Radeon RX 550 LP Graphics Card, Low Profile 4GB GDDR5 Small Form Factor Video Card for Gaming 4K Display Desktop / Mini PC SFF Video Card (RX 550 4GB Low Profile)
Amazon.com: YESTON AMD Radeon RX550 4G D5 LP Gaming Graphics Card Radeon Chill 4GB Memory GDDR5 128Bit 6000MHz VGA + HD + DVI-D GPU,Half Height, Single Slot Graphics Card with Small Blank :