Specifications Graphics Engine RX 550 Video Memory 2GB GDDR5 Stream Processor 512 Units Boost Clock 1190 M Hz Memory Clock 1750 M Hz (7.0 Gbps) Memory Interface 128bits Bus Standard PCIE 3.0 Display Connectors DL DVI-D/HDMI/DP Form Factor ATX Cooler 2 slot Fan sink Crossfire Support YES (Software Cross Fire) Open GL 4.5 Direct X Support 12 Minimum System Power Requirement (W) 400W