External video and graphics card Supports HDMI + DVI resolutions up to 3840 x 2160 pixels at 30 Hz, for use of two displays, maximum resolutions up to 2048 x 1152 pixels at 60 Hz Supports 2-channel stereo audio Bus-powered Compatible with Windows 10 (32/64), 8/8.1 (32/64), 7(32/64)