4K 32Ch Hybrid All-in-One HD-TVI DVR SD5432/48I-K is a 32Ch video recorder, supporting 5 different technologies HD-TVI, CVI, A-HD, Analog And IP Cameras making the SD5432/48I-K the perfect high definition DVR for commercial or residential install, with H.265+ video compression This DVR supports up to 16 4K 8MP ultra HD cameras over coax and 48 additional IP cameras. clear and smooth video on mobile remote view and playback for both iOS and Android mobile devices.