ARDP4KHF Display Port to HDMI adapter features active Display Port conversion to HDMI signal. This unit is a component of Liberty’s patented Digital Keychain Security System that can also function as a standalone adapter for Video presentation system. The unit has the 4-way eyelet for inclusion into a keychain design. The ARDP4KHF unit is manufactured with the latest in IC technology to support the full bandwidth required of HDMI 2.0. The unit supports bandwidth of up to 18Gbps. The actual performance will depend on the circuit link that is attached to the adapter. Longer cables attenuate and this can reduce the final throughput. Note the use pattern for this adapter is connected to a passive HDMI cable. Active AOC and Active Copper cables may not work due to the power and technology differences. It is not recommended to use active cables to connect this adapter. The length of the cable should be as short as possible. Use of HDMI® Premium certified cables allows for 15-foot lengths. This item draws power from the Display Port BUS of the source.