IMPORTANT: This cable is not USB-A compatible. Signal direction is one-way only: DisplayPort (computer) → HDMI (display) IN THE BOX: 3-foot DisplayPort to HDMI cable COMPATIBILITY: Transmits audio and video from DisplayPort enabled computer to HDMI display; NOT compatible with a USB port; does NOT work with Thunderbolt Dock; does NOT support LVDS signal sources such as audio/video players PERFORMANCE: Supports uncompressed digital audio channels (7.1, 5.1, or 2) and video resolutions up to 4K@30Hz UNI-DIRECTIONAL: From DisplayPort to HDMI only (not bi-directional) USES: Ideal for showing movies on a big-screen HDTV, presenting work on a projector, or configuring a second monitor or mirrored displays DURABLE DESIGN: Gold-plated connectors, bare copper conductors, and foil-and-braid shielding for high picture quality and pure sound