Converts Mini DisplayPort into HDMI port. Works with Microsoft Surface Pro tablets, Apple/Mac or PC/Windows and any HDMI monitor or HDTV including LED/LCD, plasma and projectors. Supports extended desktop, screen mirroring, and audio when the Mini DisplayPort provides it. Works with screen resolutions up to Ultra-HD 4Kx2K / 3840x2160@30hz and uncompressed audio such as DTS Digital, Dolby Digital (including DTS-HD and Dolby TrueHD). Features Active Mini-DP v1.2a to HDMI v1.4/3D. Works in EyeFinity setup when more than 2 displays are used. Compatible with Surface Book, 3, Pro 4, Pro 3, Pro 2, Pro. (Connectors: Mini-DP Male to HDMI Female)