Thank you for viewing. This is a Sony nasne 500GB CECH-ZNR1J. Since I only recorded to an external HDD, I believe the internal HDD has minimal degradation. Please consider. This is a fully functional product with the original box. *Note: ・nasne is transitioning to the Buffalo version, and the Sony version will be restricted to use with the Windows PC app PC TV Plus | Lite (search for "PC TV Plus" for details). Please understand this before considering. ・This is a used item, so please refrain from purchasing if you are looking for a perfect condition or are overly concerned about details. ・It is also listed elsewhere, so please forgive me if it sells out. *Items for sale: ・Main unit, ・AC adapter, ・Original box, ・Instruction manual (quick start guide), ・LAN cable, ・B-CAS card, ・Antenna cable