It’s an external EGPU meant for select devices (look up to see if it works with compatible device) it’s fairly new it comes with a power box that turns it on. Somehow ended up in my hands it’s worth $500 I just need it gone missing the oculink , the og power brick, and the hdmi it came with but it works. If you are tech savvy you know what this is. In used condition and is missing the bottom cover doesn’t have sd. Comes with a power brick but it isn’t the original one but does turn on