The WJ-HDE400 is an expansion unit for a Panasonic WJ-ND400 network video recorder (NVR) offering up to 36TB of additional storage. Up to 5 of these units can be used with a WJ-ND400 NVR increasing storage capacity substantially to enable maximum resolutions, highest frame rates and long-term retention of CCTV footage. The WJ-HDE400 is available with various storage capacity options: 12TB, 20TB, 28TB and 36TB (please select from above dropdown). Drives are hot-swappable to avoid down-time and interruption of recordings. A rack mount kit is included.