?Worry-Free? 30 days refund, 24 months warranty. FOINNEX is created for professional audiovisual connection and multimedia conversion products, providing customers with high-quality products and experiences. ?Compatible Device?Compatible with Apple Mac Mini, MacBook Pro, MacBook Air, Microsoft Surface Pro 6 5 4 3, Surface Book, ThinkPad X1 and other devices with a mini DP or Thunderbolt 2 port.(Note:Due to the devices’ updating,please confirm the I/O interface type before purchg.). ?3 in 1?Compact, lightweight and portable. No more adapter is needed. (Note: Not bidirectional.Only one of the 3 outputs could be used at a time). ?Supports 4K Rresolution? Mini dp to hdmi vga dvi adapter supports up to 4Kx2K@30Hz (HDMI), 1080p@60Hz and 1920x1200 (DVI & VGA) display resolutions, and flawless audio pass-thru for uncompressed digital 7.1, 5.1 or 2 channels (Audio is NOT supported for DVI & VGA output); Don't fit with thunderbolt 3.0 or any USB C Port Device!. ?Reliable Connectivity?Unique complete circuit design for reliable connectivity. No signal loss, no flickering and anti-electromagnetic interference. ?Original PARADE and ANALOGIX Chipset ?DVI-HDMI AdapterFOINNEX Mini DP to HDMI VGA DVI Adapter adopts Original PARADE and ANALOGIX chipset (not copy), making it more compatible with much more devices of different brands.