HVL4-G4 HDD with network recording function, manufactured by I-O Data. It can also be used as a file server (NAS) and was used for backups. Information on this device: Management screen: 192.168.0.200 User: admin Password: None set Currently, the device will be delivered after initialization from the management screen. The items for sale are the main unit and the power adapter only. I am not an expert, so please understand the details by looking at the images, etc., if you are considering purchasing. If you need additional information, please ask in the comments. I will provide information to the best of my ability. This product was only started when used after purchase and used as a NAS for backups, etc., and I think the total operating time is less than 100 hours. (I have not used it for recording.) - Brand: I-O Data - Model: HVL4-G4 - Rated voltage: DC12V 6A - Type: HDD 1TBx4, RAID5 (3TB usable) - Function: Network recording Thank you for viewing. I am decluttering my home (my parents' home in Tokyo). There are some items for which I cannot accurately describe the details, so please consider purchasing based on the images only. Purchases are at your own discretion and responsibility. Also, I will not list items that I suspect are copies or fake brands, but I am an amateur, so I cannot guarantee this. If you have any concerns or worries, please request additional images or refrain from purchasing. *Please check the images for the size (a measuring tape is also included in the photos). If you have any questions, please contact me. *Shipping will be via Nekopos or Yu-Packet Post for items that fit in a post box. Other items will be shipped via宅配便 (courier service). Packaging will use recycled materials. *Cancellations and returns are not accepted after shipping. Please consider your purchase carefully. *Please consult Mercari or the shipping company for any damage caused by shipping. *Items are not sold separately. *Items in the background are not included. ★Consultation★ If you are hesitant to purchase due to the price, please let me know your desired price. I will try to accommodate you as much as possible.