Amazon.com: 4K Media Player with Remote Control, Digital MP4 Player for 8TB HDD/ USB Drive / TF Card/ H.265 MP4 PPT MKV AVI Support HDMI/AV/Optical Out and USB Mouse/Keyboard-HDMI up to 7.1
Amazon.com: 4K@60hz MP4 Media Player Support 8TB HDD/ 256G USB Drive/SD Card with HDMI / AV Out for HDTV/PPT MKV AVI MP4 H.265-Support Advertising Subtitles/Timing, Networkable, Mouse&Keyboard Control : Electronics
How Much Hard Disk Space Do You Need to Shoot in 4K? | 4K Shooters
Swann Master Series 4K, 8-Channel, 6-Camera, Indoor/Outdoor PoE Wired 4K UHD 2TB HDD NVR Security Surveillance System White SONVK-876806-US - Best Buy
4K 16 Channel NVR with PoE, 2 HDD
The Facts: 4K Advanced Format Hard Disks | bit-tech.net
16 Channel PoE 4K NVR, Enterprise Series, 4 HDD Support
Enforcer™ 12 Camera 16 Channel 4K Ultra HD DVR 4TB HDD Security System
hard drive - Why is my HDD so slow on the "4K" speed tests? - Super User