QNAP VS-4012 Pro Series VioStor NVR is the professional standalone network video surveillance systems designed to meet the high security demand of the small and medium-size business (SMB) and enterprises. The Linux-based system supports PC-less quick configuration, monitoring of IP cameras over the network, and video playback by connecting a monitor to the built-in VGA connector, a USB keyboard, and a USB mouse. The VioStor NVR supports H.264, MxPEG, MPEG-4, and M-JPEG recording, megapixel recording, and up to 8 TB storage capacity. It is compatible with over 800 models from popular IP cameras brands, including AXIS, ACTi, A-MTK, Arecont Vision, AVTECH, Brickcom, Canon, Cisco, CNB, DIGITUS, D-Link, EDIMAX, ELMO, EtroVision, GANZ, Hikvision, iPUX, IPX, IQeye, LevelOne, Linksys, Messoa, MOBOTIX, NAKAYO, Panasonic BB/ BL/ i-Pro, SANYO, SHANY, SONY, TOA, TOSHIBA, TRENDnet, Videosec, VIOSECURE, VIVOTEK and Y-CAM.