Regza genuine USB hard disk Time Shift Machine THD-400V3. It's 4TB and the estimated recording time is 502 hours for terrestrial digital broadcasts. I can confirm that it's working when plugged into a power outlet, but the TV doesn't recognize it. Therefore, it's treated as a junk item. How about using it for parts? It will be shipped in the box shown in the photos. Please purchase after confirming the photos and description. Returns and exchanges are not possible due to it being a junk item. Thank you.