US Hikvision 4K 32 CH NVR 16 PoE 8MP DS-7732NI-K4/16P 4SATA H265+ (NO HARD DISK) | eBay
Amazon.com : DS-7232HQHI-K2 - HIKVISION 32 Channel Turbo HD H.265 32-Channel Video Recorder : Electronics
Hikvision 32-ch 1.5U 24 PoE 4K NVR
Amazon.com: HIKVISION DS-7732NI-I4/24P 32-Channel 24 POE 4K 12MP Embedded Plug and Play PoE NVR with Alarm and Audio I/O, US Version, (NO HDD Included) : Everything Else