DS-7216 HQHI-M2/S 4K 16-ch 1080p 1U H.265 POC DVR. 16 channels and 2 HDDs 1U DVR. Video Compression H.265 Pro+/H.265 Pro/H.265/H.264+/H.264. Efficient H.265 pro+ compression technology. Two-Way Audio 1-ch, RCA (2.0 Vp-p, 1 KΩ) (using the first audio input).
eBay