U.S. Security Solutions DVR manufactured for the U.S. market in Taiwan. Incredibly stable user friendly graphical user interface (GUI) with advanced H.264. Full U.S.A Warranty and life time U.S. support make this 1080P DVR the number one choice for professionals | 4 Channel 60FPS@1080P / 120FPS@720P Video/Audio Recorder, Industrial Grade Embedded Linux DVR up to 30FPS on each of the Channels High Definition recording and playback with True hardware H.264 Compression with 5X zoom in live and playback | Variable HD resolution 720P/1080P, image quality, image rate, several recording modes, including schedule, motion, alarm and panic button recording, each with individually adjustable settings per channel | HDMI out at Full HD 1080P, VGA out at Full HD 1080P, BNC Spot or BNC Main output for total of three displays. 4 audio channels allow you to listen, record and playback audio with video over the internet. | Dual processer and large memory allows for dual stream for 100% independent Remote view accounts and live operation with 120 FPS H.264 network server. Backup options available through Network or USB 2.0 Port