www.HomeSecurityStore.com The Triplex DVR with Built-In 7″ LCD Monitor is relatively affordable and is as professional as surveillance DVRs get, thats for both residential and commercial use. The DVR has four channels, which means it can work with up to four cameras. It also has the latest video format compression of H.264 enabling the user to save more video on less hard drive. For more information on this product and other Home Security products please go to http