| ? | Model | 4 Channel H.264 DVR | 8 Channel H.264 DVR |  | 
		
			| DVR-H3804BW (A,K,R)-S | DVR-H3808BW (A,K,R)-S |  | 
		
			| System | Main processor | Industrial grade embedded micro controller chip Huawei Hisilicon chipset 3520A |  | 
		
			| Operating system | Embedded LINUX operating system |  | 
		
			| System resource | Multi-channel real-time recording synchronously, multi-channel real-time playback, multi-channel multi-user network operation, USB back up.
 |  | 
		
			| Display | Operation interface | 16 bit real color GUI interface support mouse operation |  | 
		
			| Multilingual Language | YES, 28 kinds of language |  | 
		
			| Display screen | 1/4 screen | 1/4/8/9 screen |  | 
		
			| Video | Video standard | PAL(625 lines, 50fps); NTSC(525lines, 60fps) |  | 
		
			| Image encode | H.264(Main Profile); JPEG Snapshot |  | 
		
			| Monitor quality | Monitor:D1; VGA & HDMI: (1920*1080,1280*720,1440*900,1280*1024,1024*768, 800*600) |  | 
		
			| Playback quality | 960H/D1/HD1/CIF | D1/HD1/CIF |  | 
		
			| Encode capability | 4CH real time 960H/D1 | 8CH non-real time 960H@12fps; 8CH real time D1@25fps;
 8CH non-real time D1@15fps
 |  | 
		
			| Decode capability | 4CH real time 960H/D1 | 2CH 960H@12fps;4CH D1(1D1@25fps+3D1);
 8CH D1@15fps
 |  | 
		
			| Multi-mode input | NO |  | 
		
			|  | 
		
			| Audio | Audio compression | G.711A |  | 
		
			| Record and playback | Record mode | Manual, alarm, motion detection, timing |  | 
		
			| Snapshot | D1 mode: Support automatic capture function (0.5 S/frame,1 S/frame…5 S/frame) |  | 
		
			| Local playback | Max. 4CH 960H / D1 playback / 4*960H@25fps | Max 2CH 960H@12fps;Max 4CH D1(1D1@25fps+3D1);
 Max 8CH D1@15fps
 |  | 
		
			| Video search | Time, date, event, channel search |  | 
		
			| Storage and back up | Space Usage | Video: CIF 4~5G/day*channel; D1 8~20G/day*channel; Audio: 691.2M/day*channel |  | 
		
			| Video storage | Local Hard Disk, Network |  | 
		
			| Back up mode | Network backup, USB portable HDD, USB DVD-RW |  | 
		
			| Interface | Video input | 4CH BNC(1.0Vp-p,75?) | 8CH BNC(1.0Vp-p,75?) |  | 
		
			| Video output | 1CH BNC(1.0Vp-p,75?), 1CH VGA, 1CH HDMI |  | 
		
			| Audio input | 4CH RCA  (200-2800mV,30K?) |  | 
		
			| Audio output | 1CH RCA (200-3000mV,5K?) |  | 
		
			| Alarm input | 4CH optional |  | 
		
			| Alarm output | 1CH optional |  | 
		
			| Network port | 1*RJ45 10/100 Base-T self-adaptive Ethernet port |  | 
		
			| PTZ control | 1*RS485 port,Support more than 20 kinds protocols. |  | 
		
			| USB port | 2*USB 2.0 port |  | 
		
			| HDD port | Accommodates 1 SATA HDDs (1 HDD capacity up to 3TB) |  | 
		
			| Wireless Port | 3G & WIFI (extension via USB port) |  | 
		
			| User | User level | Admin / User |  | 
		
			| User right | Users can set different permissions (How to use please refer to the manual book) |  | 
		
			| Password protection | YES |  | 
		
			| Remote | Remote Independent Operation | YES |  | 
		
			| Download records | YES |  | 
		
			| Remote Event Trigger Recording | YES |  | 
		
			| CMS | CMS Software for multiple DVR (up to 255 DVR simultaneously) |  | 
		
			| Browser | Internet Explorer, Mozilla Firefox, Google Chrome, Safari |  | 
		
			| Live Audio | YES |  | 
		
			| On-line user | Max. 10 |  | 
		
			| Mobile Surveillance | YES (Support iPad, iPhone, BlackBerry, Windows Mobile, Symbian & Android;iPad, iPhone, Andriod have remote playback function) |  | 
		
			| Network Protocol | DHCP, PPPOE, FTP, DNS, DDNS, NTP, UPNP, EMAIL, IP authority, IP search, Alarm center |  | 
		
			| Alarm | Motion detection | 16 × 12 grids per channel;6 adjustable parameters for accurate detection(for local analog channel only) |  | 
		
			| Event Notification | FTP / E-Mail |  | 
		
			| Pre-alarm Recording | YES |  | 
		
			| Video loss | Video loss notification |  | 
		
			| Other | IR remote controller | Remotely control DVR and PTZ cameras via IR transmitter (IR receiver built-in) |  | 
		
			| Cooling fan | NO |  | 
		
			| Tour | YES |  | 
		
			| Power Source (±10%) | DC 12V / 2A |  | 
		
			| Power Consumption (±10%) | <15W (Without HDD) |  | 
		
			| Operating |