Ideal for small-to-medium-sized businesses (SMBs), retail stores, apartment buildings and hospitality markets, the new GVR3550 NVR supports quick and easy installation thanks to its auto-discovery of IP-cameras and a comprehensive suite of advanced video/audio recording, monitoring, search, retrieval, and centralized camera control features. Grandstream?s ONVIF compliant GVR3550 offers concurrent video recording and storage management for up to 24 720p HD cameras with a large storage capacity of up to 16Tb and up to 4 hard drives using either RAID 0 or RAID 1 setting (hard drives not included in the base system package).