GV-VS21600 is a powerful H.264 Video Server with compact size. It supports 8-channel combo 18 fps at 3 MP / 15 fps at 4 MP, 16-channel combo 1080p / 720p and analog 960H / D1 real-time video. The video server can be fully integrated with GV-DVR / NVR / VMS to form a powerful IP surveillance solution. It converts analog signals into high-resolution digitized images of up to 4 megapixels and supports over 50 PTZ models to fulfill various project demands. GV-VS21600 can record videos to a local USB storage, performing as a compact video recorder. It is also able to trigger Tampering Alarm alerts when the cameras are tampered with, which can be used to prevent criminal activities.