This is the "RECBOX" high-definition recording hard disk from I-O DATA. ■ Model Number: HVL-RS4 *4TB ■ External Dimensions: 215mm (W) x 170mm (D) x 38mm (H) (excluding protrusions) ■ Weight (body only): Approximately 850g ■ Weight (when packaged): Approximately 1.5Kg ■ Included items: LAN cable, AC adapter, Instruction manual (guidebook) RECBOX is a recording hard disk that allows you to enjoy recorded programs even if your TV changes due to sudden failure or replacement by dubbing programs recorded on your TV. Also, recorded programs dubbed to RECBOX can be played and enjoyed on TVs throughout your home. * Your TV must support DTCP-IP Please refer to the manufacturer's HP for details ↓ https://www.iodata.jp/product/hdd/rokuga/hvl-rs/index.htm I purchased this about two years ago but have kept it in storage without using it. It is unopened and unused. No returns or claims accepted.