Product comparison · 2 digital video recorders (dvr)

Dahua Technology XVR1B04H-I/T + 4 HAC-B2A51 vs Dahua Technology XVR1B08-I/8-B2A21N-U Black

68specifications compared
22differ
46identical
16known for one product only

Key differences

Maximum video resolution
- XVR1B04H-I/T + 4 HAC-B2A51:2592 x 1944 pixels
- XVR1B08-I/8-B2A21N-U Black:1920 x 1080 pixels
Audio system
- XVR1B04H-I/T + 4 HAC-B2A51:2-way
- XVR1B08-I/8-B2A21N-U Black:1-way
Bit rate
- XVR1B04H-I/T + 4 HAC-B2A51:6144 Kbit/s
- XVR1B08-I/8-B2A21N-U Black:32 Kbit/s
Channels quantity
- XVR1B04H-I/T + 4 HAC-B2A51:6 channels
- XVR1B08-I/8-B2A21N-U Black:10 channels
Input bandwidth
- XVR1B04H-I/T + 4 HAC-B2A51:32 Mbit/s
- XVR1B08-I/8-B2A21N-U Black:40 Mbit/s
Multi-display modes
- XVR1B04H-I/T + 4 HAC-B2A51:1, 4, 6
- XVR1B08-I/8-B2A21N-U Black:1, 4, 8, 9, 16
Network connection type
- XVR1B04H-I/T + 4 HAC-B2A51:RJ-45
- XVR1B08-I/8-B2A21N-U Black:Ethernet port, RJ-45
Total bandwidth
- XVR1B04H-I/T + 4 HAC-B2A51:32 Mbit/s
- XVR1B08-I/8-B2A21N-U Black:40 Mbit/s

Side by side

Differences highlightedShow differences only

Comparison of XVR1B04H-I/T + 4 HAC-B2A51, XVR1B08-I/8-B2A21N-U
84 specifications	A Dahua Technology XVR1B04H-I/T + 4 HAC-B2A51 View product	B Dahua Technology XVR1B08-I/8-B2A21N-U Black Model XVR1B08-I/8-B2A21N-U View product
Performance9 differ
Maximum video resolutionDiffers	2592 x 1944 pixels	1920 x 1080 pixels
Video compression formats	H.265, H.264	H.265, H.264
Video recording trigger modes	Alarm, Motion detection	Alarm, Motion detection
Backup function	Yes	Yes
Video capturing speed (NTSC)Known for one	Unknown — not stated by the source	30 fps
Video capturing speed (PAL)Known for one	Unknown — not stated by the source	30 fps
Video loss detection	Yes	Yes
Video motion detection	Yes	Yes
Audio bitrate	64 Kbit/s	64 Kbit/s
Audio input channels	1 channels	1 channels
Audio output channels	1.0 channels	1.0 channels
Audio streaming	Yes	Yes
Audio systemDiffers	2-way	1-way
Bit rateDiffers	6144 Kbit/s	32 Kbit/s
Channels quantityDiffers	6 channels	10 channels
ClassKnown for one	Unknown — not stated by the source	Desktop
Display	1 HDMI, 1 VGA	1 HDMI, 1 VGA
Dual stream support	Yes	Yes
Event logging	Yes	Yes
Input bandwidthDiffers	32 Mbit/s	40 Mbit/s
Maximum frame rateKnown for one	Unknown — not stated by the source	30 fps
Multi-display modesDiffers	1, 4, 6	1, 4, 8, 9, 16
Multi-display supported	Yes	Yes
Network connection typeDiffers	RJ-45	Ethernet port, RJ-45
Number of simultaneously playbacked channels	1 channels	1 channels
Operating system installed	Embedded LINUX	Embedded LINUX
Playback modes	Instant, General, Event, Tag, Smart	Instant, General, Event, Tag, Smart
Playback resolutions supported	1920 × 1080, 1280 × 1024, 1280 × 720	1920 × 1080, 1280 × 1024, 1280 × 720
Product colourKnown for one	Unknown — not stated by the source	Black
Total bandwidthDiffers	32 Mbit/s	40 Mbit/s
USB connectivity	Yes	Yes
Video output - digital	HDMI: 1920 × 1080, 1280 × 1024, 1280 × 720; VGA: 1920 × 1080, 1280 × 1024, 1280 × 720	HDMI: 1920 × 1080, 1280 × 1024, 1280 × 720; VGA: 1920 × 1080, 1280 × 1024, 1280 × 720
Video streaming	Yes	Yes
Compatible operating systemsDiffers	Embedded Linux; Web; Local GUI; iOS; Android; Chrome; IE; Safari; Edge; Firefox	Embedded Linux
Audio formats supportedKnown for one	G.711, G.711u, PCM	Unknown — not stated by the source
InternalKnown for one	No	Unknown — not stated by the source
Remote viewingKnown for one	Yes	Unknown — not stated by the source
Video1 differ
Video resolutionsDiffers	1920 x 1080,1280 x 1024,1280 x 720,2592 x 1944,2304 x 1296	1920 x 1080,1280 x 1024,1280 x 720
Ports & interfaces4 differ
Video input channelsDiffers	6 channels	8 channels
BNC input portsDiffers	4	8
HDMI ports quantity	1	1
VGA (D-Sub) output ports	1	1
Audio inputDiffers	1-channel RCA; 4-channel BNC (Coaxial Audio)	1-channel RCA \| 8-channel BNC (Coaxial Audio)
Audio output	1-channel RCA	1-channel RCA
USB 2.0 ports quantity	2	2
Video inDiffers	4 BNC ports, supports HDCVI/AHD/TVI/CVBS auto-detect	8 BNC ports, supports HDCVI/AHD/TVI/CVBS auto-detect
Video out	1 HDMI, 1 VGA	1 HDMI, 1 VGA
Number of HDMI outputs	1	1
eSATA ports quantityKnown for one	1	Unknown — not stated by the source
Network1 differ
Ethernet LAN	Yes	Yes
Ethernet LAN (RJ-45) ports	1	1
Ethernet interface type	Fast Ethernet	Fast Ethernet
Ethernet LAN data ratesDiffers	100,1000 Mbit/s	100 Mbit/s
Supported network protocols	HTTP; HTTPS; TCP/IP; IPv4; IPv6; RTSP; UDP; NTP; DHCP; DNS; SMTP; UPnP; IP Filter; FTP; DDNS; SNMP; Alarm Server; P2P; Auto Registration; IP Search (Supports IP camera, DVR, NVS, etc.)	HTTP; HTTPS; TCP/IP; IPv4; IPv6; RTSP; UDP; NTP; DHCP; DNS; SMTP; UPnP; IP Filter; FTP; DDNS; SNMP; Alarm Server; P2P; Auto Registration; IP Search (Supports IP camera, DVR, NVS, etc.)
Hard drive2 differ
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
Maximum HDD capacityDiffers	16 TB	6 TB
Supported HDD interfaces	Serial ATA	Serial ATA
Media types supportedDiffers	SATA	USB device and network
Processoridentical
Built-in processor	Yes	Yes
Power1 differ
Power supply type	DC	DC
AC input voltageKnown for one	Unknown — not stated by the source	12 DC
DC voltage	12 V	12 V
DC current (max)	1.5 A	1.5 A
Power consumption (max)Known for one	Unknown — not stated by the source	7 W
Power consumption (typical)Differs	4 W	7 W
Power requirements	12 VDC, 1.5 A	12 VDC, 1.5 A
Weight & dimensions2 differ
Width	197 mm	197 mm
DepthDiffers	204.3 mm	202.9 mm
Height	41.5 mm	41.5 mm
WeightDiffers	580 g	560 g
Packaging data1 differ
Package width	332 mm	332 mm
Package depth	64 mm	64 mm
Package height	240 mm	240 mm
Package weightDiffers	1.13 kg	960 g
Displayidentical
Built-in display	Yes	Yes
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
Operational conditionsidentical
Operating relative humidity (H-H)	10 - 90%	10 - 90%
Operating temperature (T-T)	-10 - 45 °C	-10 - 45 °C
Storage temperature (T-T)	-20 - 60 °C	-20 - 60 °C
Technical details1 differ
Compliance certificatesKnown for one	Unknown — not stated by the source	CE
Package volumeDiffers	5008.88 cm³	240 cm³
Audio channelsKnown for one	1	Unknown — not stated by the source
Shipping (inner) case gross weightKnown for one	1.13 kg	Unknown — not stated by the source
Featuresidentical
Audible alarm(s)Known for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

Dahua Technology XVR1B04H-I/T + 4 HAC-B2A51 vs Dahua Technology XVR1B08-I/8-B2A21N-U Black

Key differences

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