PORTABLE: Connects a computer, desktop, laptop or other device with a DisplayPort port to a monitor, projector, high-definition TV or other device with an HDMI port; slip this lightweight gadget into your bag or pocket to make business presentations with laptops and projectors, or to extend a desktop screen to a monitor or TV; requires an HDMI cable.Superior Stability :Built-in advanced IC chip converts DisplayPort signals to HDMI signals; it is not a bi-directional converter and cannot transfer signals from HDMI to DisplayPort.Cable Material:CopperPowerful function :Multi-screen setup with AMD Eyefinity multi-screen display technology, easy to set up multi-screen working environment. Locking Design: DisplayPort connector with locking pins provides a secure connection and the locking pins improve connection stability in use. To plug and unplug, press the "realse" button for easy unplugging.Connection cable:hdmi