| Item | Description | |
| OS | Linux | |
| Graphics Operation Interface | System parameters can be set through external display and remote controller | |
| Security Management | 2-level management for user password, administrator password, supporting encrypted transmission | |
| Video and Preview | Video Input, Output | 4-channel video input, 1channel video output; 1.0Vp-p, 75Ω |
| OSD | Character superposition function, information superposition of time and date, device ID and GPS, etc. | |
| Video Compression Format | Compression coding. Applying Hisilicon hi-performance processor. | |
| Dual-Stream | Supported | |
| Preview Function | Preview of 1-channle, 4-image stitching, supporting full screen triggered by event and switching of stitched images | |
| Frame Rate | PAL: 100 frames/s, up to 25 frames/s per channel; NTSC: 120 frames/s, up to 30 frames/s per channel | |
| Resolution | CIF, HD1 and D1 for selection, supporting 2 channels of D1+ 2 channels of CIF at the most | |
| Quality | Grade 1 to grade 5 for selection (descending) | |
| Bit Rate | CIF: 256Kbps ~ 1.5 Mbps, 8-level bit rates for selection HD1: 600Kbps ~ 2 Mbps, 8-level bit rates for selection D1: 800Kbps ~ 3Mbps, 8-level bit rates for selection | |
| Audio | Audio Input, Output | 4-channel input, 1-channel output |
| Compression Format | G.726 coding | |
| Recording | Storage Medium | Supporting one 2.5” hard drive and one SD card, which supports up to 32G, supporting data redundancy storage technology; |
| File Format/ System | ASF/FAT32 | |
| Video Strategies | Recording at startup by default, supporting timed recording, recording triggered by alarm and event, as well as manual recording | |
| Video Search | Searching by time, type, storage device and other conditions | |
| Video Playback | Supporting playback on local device, supporting synchronous playback of up to 4 channels and analysis on vehicle information in the files | |
| Supporting fast forward, fast backward, play and pause, supporting fast forward and fast backward at 2x, 4x, 8x and 16x speed, supporting file play from selected time | ||
| Alarm | Alarm Input/ Output | 6-channel on/off signal alarm input, 1-channel on/off signal alarm output |
| Alarm Recording | Prerecording function 15 seconds before alarm, duration of recording after alarm can be adjusted from 30s ~ 30min | |
| Storage Space Alarm | Supporting settings for alarm of storage space | |
| Function Alarm | GPS overspeed alarm, acceleration alarm, motion detection alarm | |
| Communication Ports | RS232, RJ45 10M/100M self-adaptable network interface | |
| Wireless Transmission (Optional) | Embedded 3G wireless transmission module, WCDMA, CDMA2000, TD-SCDMA system for selection; Compatible |
