Dahua - 4Ch. Mobile HD-CVI DVR, Embedded LINUX, Multi-format Video Input: HDCVI, AHD, TVI, CVBS, Embedded 3G/4G/WiFi with Verizon Service and a GPS Module, H.265/H.264, Motion Detection, MD Zones: 330 (22 x 15), Video Loss, and, Tampering, One (1) SATA 2.5-in. HDD Port up to 2 TB per HDD, One (1) SD Card Slot, up to 256 GB, Front Panel: Two (2) USB 3.0 Ports, GPS, Anti-vibration, 6 VDC to 36 VDC.

Vivotek - 8Ch. Plug & Play Mobile NVR, M12 , Embedded Linux, H.265/H.264/MJPEG, 3840x2160 @ 120 fps, Internal x1 (2.5" HDD/SSD) Up to 8 TB, 2GB RAM, Fisheye Dewarp, Built-in G-sensor, LAN/Wi-Fi/LTE Multiple Network Connections,  Built-in GNSS Receiver,  DC 12~48V.

Vivotek - 8Ch. Plug & Play Mobile NVR, Embedded Linux, H.265/H.264/MJPEG, 3840x2160 @ 120 fps, Internal x1 (2.5" HDD/SSD) Up to 8 TB, 2GB RAM, Fisheye Dewarp, Built-in G-sensor, LAN/Wi-Fi/LTE Multiple Network Connections,  Built-in GNSS Receiver,  DC 12~48V.

OEM - 4Ch. IP Mobile DVR, H.264, G.711, 2 x 2.25" HDD ( Up to 1TB each) , 1 SIM/UIM card slots, Linux, Input: 8 to 36 VDC; Output: 12 VDC/1 A, 5 VDC/1 A. **OEM Hikvision - No Logo**

OEM - 8 CH TVI Mobile DVR, H.264, 720p @30fps, 2 x 2.5" HDD ( Up to 1TB each), Specialized Aviation Connectors Ensuring Signal Stability, Alarm I/O : 3/2, 1 SIM/UIM Card Slots, G.722, 8 to 36 VDC, Output: 12 VDC/1 A, 5 VDC/1 A. **OEM Hikvision - No Logo**

OEM - 4 CH TVI Mobile DVR, H.264, CH1~CH4: 25/30fps@720p, Pluggable Anti-vibration HDD box, 2" x 2.5" SATA interface ( up to 1T for each), Alarm I/O: 4/3, 1 SIM/UIM Card Slots, G.722,
= 20 W.  **OEM Hikvision - No Logo**