Features: High video recording resolution up to 1080p. Support alternative recording media for TF card and USB disk. Pixel statistic engine for auto-brightness and balance for all four cameras. Independent Fish-eye calibration parameter and algorithm for each camera. Arbitrary and dynamic 3D mode view angle switching for better surrounding environment observation. Seamless video merging based on dual core ARM CPU and hardware high efficiency acceleration engine. OE quality for main chipset with well protected circuit and devices in order to achieve the best system performance and stability. Specifications: Condition: Color: As shown in the picture ARM subsystem: Processor model: Quanzhi T2 dual-core ARM Cortex A7 @ 1.0GHz System memory: 2Gbit DDR3-1066MHz NandFlash: 4GByte FPGA Subsystem: FPGA LatticeECP5 40nm Low Power FPGA Memory: 4Gbit DDR3-1066MHz Video subsystem: Decoding chip: NVP6124B supports up to 4 channels 1080p30 Video standard: AHD2.0 Applicable models: General Package List: 1*MDVR Host 1*MDVR Connector 1*MDVR Power Cord 1*MDVR 4G Antenna 1*MDVR GPS Antenna 1*MDVR Remote Control with Battery 2*Host Key