Hikvision DS-7332HUHI-K4 4K 8MP 32 Channel DVR – CCTV R US
4K - Ultra HD - Hikvision
Hikvision EKI-K164D412 16-Channel 4K NVR 4TB with 12 x 4MP Outdoor Dome Cameras, 2.8mm Lens
Hikvision Original DS-7616NI-I2/16P Onvif Network Video Recorder 16CH POE Embedded Plug Play 4K 16PoE NVR for IP Camera CCTV System Upgradable HDD Selectable.24/7 Securtiy Protection - Newegg.com
Amazon.com : Hikvision H.265+ Turbo HD 16CH DVR 4K HDMI Supports up to 8MP TVI/5MP AHD/4MP CVI/ Plus 16CH of 8MP IP CAM (HDD not Included) : Electronics