Hikvision DS-6908UDI(C)(STD) 8-Output 4K UHD Video Wall Decoder — 128-Channel, 32MP

Hikvision DS-6908UDI(C)(STD) is a professional 8-output 4K UHD video wall decoder supporting up to 128 decoding channels and resolutions up to 32MP. With 8 HDMI outputs, 2 BNC outputs, dual Gigabit Ethernet and dual fibre interfaces, smart stream decoding and full video wall management capability, it is designed for mid-to-large-scale command centres, control rooms and professional video wall installations.

Hikvision DS-6908UDI(C)(STD) 8-Output 4K UHD Video Wall Decoder — 128-Channel, 32MP

The Hikvision DS-6908UDI(C)(STD) is a professional embedded-platform video wall decoder from the DS-6900UDI series. It provides 8 HDMI outputs supporting 4K (3840 × 2160@30Hz) and 2 BNC outputs (via DB15 connector), and decodes up to 128 channels of video simultaneously from network cameras, NVRs and other IP sources at resolutions up to 32MP.

The "(C)" variant is an updated hardware generation of the DS-6908UDI series, featuring support for 32MP decoding, smart stream decoding (Smart264/Smart265) and compatibility with PanoVu panoramic cameras and fisheye cameras. The "(STD)" suffix denotes the standard software bundle — the hardware specification is identical to the DS-6908UDI(C). Confirm software licensing requirements with your Hikvision partner before ordering.

128-Channel Video Decoding up to 32MP

The decoder supports up to 128 decoding channels, with the following resolution-dependent channel counts:

• 32MP / 24MP@real-time: up to 4 channels
• 12MP@real-time: up to 8 channels
• 8MP@real-time: up to 16 channels
• 6MP@real-time: up to 20 channels
• 4MP@real-time: up to 32 channels
• 1080p@real-time: up to 64 channels
• 720p and below: up to 128 channels

Every four HDMI output ports (ports 1–4 and ports 5–8) form a group, sharing decoding capability. Each group supports up to 4-channel smart stream decoding or 4-channel encrypted stream decoding.

8 HDMI Outputs — 4K Resolution

All 8 HDMI output interfaces support 4K (3840 × 2160@30Hz) output, along with 1080p@50/60Hz and 720p@50/60Hz resolutions. Frame synchronisation technology ensures complete image synchronisation across all HDMI output ports simultaneously — no lag, frame loss, tearing or stitching artefacts. The 2 BNC outputs (via DB15 connector) provide standard analogue output for legacy monitors.

Multi-Format Decoding including Smart264/Smart265

Supported video compression formats include:

• H.265 / H.264 / Smart265 / Smart264 / MJPEG / HIK264
• PS, TS, ES, RTP encapsulation formats
• Audio: G.722, G.711A, G.726, G.711U, MPEG2-L2, AAC, MP3, PCM

Smart Stream Decoding

The decoder supports smart stream decoding (Smart264/Smart265), enabling it to decode and display smart alarm event data from compatible Hikvision network cameras — such as intrusion detection, line crossing, face detection and other VCA events — directly on the video wall, with visual overlays and alarm-triggered display behaviour.

Active and Passive Decoding Modes

Both active decoding (decoder pulls streams via URL/RTSP from cameras and NVRs) and passive decoding (encoding devices push streams to the decoder) are supported. The decoder is compatible with PanoVu 32MP panoramic cameras, fisheye cameras, conventional network cameras, DVRs, NVRs and XVRs, as well as mainstream third-party security devices via ONVIF.

Video Wall Management

• Split screen layouts: 1 / 4 / 6 / 8 / 9 / 12 / 16 / 25 windows
• Signal source window opening, roaming, scene switching and window switching
• Each screen supports four 1080p signal source windows or two 4K signal source windows
• Each signal source window can be divided into 1 / 2 / 4 / 6 / 8 / 9 / 12 / 16 / 25 / 36 sub-windows
• Up to 64 configurable scenes
• Up to 100 auto-switching view groups via HCP client
• Double-click sub-window zoom in/out
• Video playback from recorded files to the video wall
• Desktop casting to video wall via smart wall client
• HCP client image capture on screen with display on video wall

Local Signal Source Inputs

Two HDMI 1.4 input interfaces accept local signal sources including PC desktops, video conference terminals and other HDMI sources at up to 4K@30Hz (1-ch) or 1080p@50/60Hz (2-ch). HDMI embedded audio input is supported (16-bit, 48KHz sampling, stereo).

Dual Network Interface with Fibre Support

Two RJ45 Gigabit Ethernet interfaces (10/100/1000 Mbps self-adaptive) and two optical fibre interfaces (100Base-FX / 1000Base-X) are provided as two combo pairs, supporting port aggregation for bandwidth expansion and redundancy.

Alarm, Audio and Serial Interfaces

8 alarm inputs and 8 alarm outputs, one two-way audio input and one two-way audio out (3.5mm), and 8 audio outputs (DB15 × 1). RS-232 (RJ45) × 1 and RS-485 × 1 serial interfaces support network keyboard and PTZ controller integration. Remote PTZ control is supported including 8-direction control, auto-scanning, aperture, focal length, focusing and preset calling.

KEY BENEFITS

• 128 decoding channels with 32MP resolution support for the latest PanoVu and high-resolution cameras
• All 8 HDMI outputs support full 4K@30Hz — no odd/even restriction
• Frame synchronisation ensures lag-free, artefact-free multi-screen output
• Smart stream decoding displays VCA alarm events directly on the video wall
• Compatible with PanoVu panoramic, fisheye and conventional IP cameras
• Active and passive decoding for flexible deployment architectures
• Dual RJ45 + dual fibre network interfaces with link aggregation
• 2 × HDMI 4K local inputs for PC and conference source integration
• Up to 100 auto-switching view groups via HCP client
• ONVIF support for third-party camera and platform integration
• 8 alarm I/O, RS-232 and RS-485 for keyboard and controller integration
• Desktop casting and HCP image capture to video wall

KEY FEATURES

• 8-output 4K UHD video wall decoder
• 128 decoding channels (720p and below)
• Max decoding resolution: 32MP
• 8 × HDMI outputs — all 4K@30Hz / 1080p@60Hz / 720p@60Hz
• 2 × BNC outputs via DB15 × 1
• 2 × HDMI 1.4 inputs (up to 4K@30Hz / 1080p@60Hz)
• H.265 / H.264 / Smart265 / Smart264 / MJPEG / HIK264 decoding
• PS, TS, ES, RTP encapsulation
• Smart stream decoding (VCA event display)
• Active and passive decoding modes
• Split screen: 1/4/6/8/9/12/16/25
• Up to 64 scenes, 100 auto-switching view groups
• 2 × RJ45 10/100/1000M + 2 × optical fibre (combo)
• Link aggregation supported
• 8 × alarm in, 8 × alarm out
• 8 × audio outputs (DB15 × 1)
• 1 × two-way audio in, 1 × two-way audio out (3.5mm)
• RS-232 (RJ45) × 1, RS-485 × 1
• Remote PTZ control
• ONVIF, RTP/RTSP supported
• Power: 100–240 VAC, ≤70W
• Dimensions: 440 × 320.8 × 44.5mm (1U)
• Weight: ≤5.2 kg
• Operating temperature: −10°C to +55°C

IDEAL FOR

• Mid-to-large-scale video wall command centres
• Traffic and city surveillance control rooms
• Enterprise security operations centres
• Installations requiring smart alarm event display on video walls
• PanoVu and panoramic camera deployments
• Airport, transport and critical infrastructure monitoring
• Professional monitoring stations requiring compact 1U decoder

FREQUENTLY ASKED QUESTIONS (FAQs)

What is the DS-6908UDI(C)(STD) used for?

It is a professional 8-output video wall decoder for mid-to-large-scale IP surveillance deployments. It decodes up to 128 channels of video from cameras and NVRs at up to 32MP resolution, outputting across up to 8 HDMI 4K displays and 2 BNC monitors, suited to command centres and control rooms.

What does "(C)" mean in the model number?

The "(C)" denotes an updated hardware generation of the DS-6908UDI series, supporting higher decoding resolution (up to 32MP), Smart264/Smart265 smart stream decoding, compatibility with PanoVu panoramic cameras and improved audio format support compared to the original DS-6908UDI.

What does "(STD)" mean?

The "(STD)" suffix indicates the standard software bundle. The hardware is identical to the DS-6908UDI(C). Software licensing requirements should be confirmed with your Hikvision partner before ordering to ensure the feature set matches your deployment requirements.

Do all 8 HDMI outputs support 4K?

Yes. Unlike the DS-6916UDI(B) where only odd-numbered ports support 4K, all 8 HDMI output ports on the DS-6908UDI(C) support full 4K (3840 × 2160@30Hz) output.

How many cameras can it display simultaneously?

Up to 128 channels at 720p, or 64 channels at 1080p, 32 channels at 4MP, or up to 4 channels at 32MP.

Does it support third-party cameras?

Yes, via ONVIF protocol and RTSP/URL stream access. It is also compatible with PanoVu panoramic series cameras, fisheye cameras, DVRs, NVRs and XVRs.

What is smart stream decoding?

Smart stream decoding (Smart264/Smart265) allows the decoder to receive and display VCA smart alarm event data from compatible Hikvision cameras — such as intrusion detection, line crossing and face detection events — with visual overlays on the video wall without requiring a separate VMS.

How does this compare to the DS-6916UDI(B)?

The DS-6908UDI(C) has 8 HDMI outputs vs 16 on the DS-6916UDI(B), but all 8 support 4K (no odd/even restriction). It supports higher max decoding resolution (32MP vs 24MP), Smart264/Smart265, and is a 1U chassis vs 2U. The DS-6916UDI(B) additionally provides VGA/DVI-I inputs and 16 audio outputs. Both support 128 decoding channels at 1080p.