SIIG USB 3.0 to HDMI/DVI Dual Head Display Adapter (JU-H20211-S1) Add HDMI and DVI displays to your USB 3.0 enabled system High resolution support up to 2048 x 1152 Supports 5.1 channel audio (HDMI only) Chipset DisplayLink DL-3900 Compliant with Universal Serial Bus 3.0 Specification HDMI and DVI supporting 1080p and up to 2048 x 1152 resolutions Display modes: Primary, Extended and Mirror