I was using this with wooo, but it's no longer needed because my TV broke. The capacity is 500GB. There is no hard drive case. It broke suddenly, so the recorded data is still on it. Please delete it yourself. I am also selling the remote control I was using, so please take a look. I will offer a small discount if you purchase them together. Please only purchase if you understand that this is a used item and can complete the transaction smoothly. The box is bulky, so I will fold it and ship it via Yu-Packet Post. If you don't need the box, I will dispose of it, so please let me know.