This Blackmagic Design UltraStudio 3D is a great 3G/HD - SDI capture and playback device. Note that it doesn't come with a power supply or a connection cable. It offers seamless 3G/HD - SDI capture and playback functionality, ideal for your media needs.

To use this Blackmagic Design UltraStudio 3D, first, you need to connect it to your system using your own appropriate connection cable. Then, ensure you have a suitable power supply as it doesn't come with one. When using it, make sure your system meets the basic requirements for 3G/HD - SDI capture and playback. As for maintenance, keep it in a clean and dry place. Avoid exposing it to extreme temperatures or humidity. If there are any issues, check your connections first and then consult the official support.