Hikvision DS-6916UDI(B) 16-Output 4K UHD Video Wall Decoder — 128-Channel, 24MP

Hikvision DS-6916UDI(B) is a professional 16-output 4K UHD video wall decoder supporting up to 128 decoding channels and resolutions up to 24MP. With 16 HDMI outputs, 8 BNC outputs, dual Gigabit Ethernet and dual fibre interfaces, active/passive decoding modes and full video wall management capability, it is designed for large-scale command centres, control rooms and professional video wall installations.

Hikvision DS-6916UDI(B) 16-Output 4K UHD Video Wall Decoder — 128-Channel, 24MP, HDMI and BNC

The Hikvision DS-6916UDI(B) is a high-capacity embedded-platform video wall decoder from the DS-6900UDI series, designed for professional IP surveillance video wall deployments. It provides 16 HDMI outputs (supporting 4K at 3840 × 2160@30Hz on odd interfaces) and 8 BNC outputs (via DB15 connectors), and supports simultaneous decoding of up to 128 channels of compressed video streams from network cameras, NVRs and other IP sources.

With decoding capability up to 24MP resolution (in 3-encoder-tracks mode) and flexible split-screen layouts from 1 to 36 windows, the DS-6916UDI(B) is suited to large-scale monitoring environments including traffic management centres, city surveillance command rooms, enterprise security operations centres and broadcast control environments. VGA and DVI-I local input interfaces support integration of local PC signal sources alongside network video.

128-Channel Video Decoding

The decoder supports up to 128 decoding channels of simultaneous video output, with resolution-dependent channel counts as follows:

• 24MP@30fps: up to 8 channels (3-encoder-tracks mode)
• 12MP@20fps: up to 16 channels
• 8MP@30fps: up to 32 channels
• 5MP@30fps: up to 48 channels
• 3MP@30fps: up to 80 channels
• 1080p@30fps/3Mbps: up to 128 channels

16 HDMI Outputs — 4K Resolution

All 16 HDMI output interfaces support resolutions of 1080p@50/60Hz and 720p@50/60Hz. Odd-numbered HDMI interfaces additionally support 4K (3840 × 2160@30Hz) output, enabling large-format 4K display wall configurations. The 8 BNC outputs (DB15 × 2 connectors) provide PAL (704 × 576) and NTSC (704 × 480) analogue output for legacy monitors or additional display outputs.

Multi-Format Video Compression Support

The decoder supports the following video compression formats for decoding:

• H.265+ / H.265 / H.264+ / H.264 / Hik264 / MPEG4 / MJPEG
• PS, RTP, TS, ES, HIK encapsulation formats
• Three encoding levels: baseline, main and high-profile
• Audio: G.722, G.711A, G.726, G.711U, MPEG2-L2 and AAC

Active and Passive Decoding Modes

The decoder supports both active decoding (the decoder pulls streams directly from cameras and NVRs via URL or RTSP) and passive decoding (encoding devices push streams to the decoder). Stream retrieval and decoding via RTSP and URL is supported for broad third-party IP camera compatibility. ONVIF and GB28181 protocols are also supported for integration with non-Hikvision equipment.

Video Wall Management

The decoder provides comprehensive video wall layout and management capabilities:

• Split screen layouts: 1 / 4 / 6 / 8 / 9 / 12 / 16 / 25 / 36 windows
• Window opening, window roaming and cross-screen window management
• Regular and irregular virtual screen configuration — not limited to physical screen boundaries
• Up to 64 configurable scenes
• LED display width and height parameter configuration
• Double-click sub-window zoom in / zoom out
• Multi-screen control with PC-installed RSC server
• Supports decoding of recorded video files to the video wall

Local Signal Source Inputs

Two local video input interfaces are provided — VGA and DVI-I — accepting resolutions up to 1080p@50/60Hz and 720p@50/60Hz. These allow local PC desktops, video conference terminals or other signal sources to be displayed on the video wall alongside network video streams.

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, with each RJ45 and fibre port forming a combo pair. Port aggregation (Link Aggregation / Ethernet Channel) is supported for increased bandwidth and redundancy in high-capacity deployments.

Alarm, Audio and Serial Interfaces

The decoder includes 8 alarm inputs and 8 alarm outputs, one two-way audio input (3.5mm, 2.0Vp-p, 1KΩ) and 16 audio outputs (DB15 × 2). Serial interfaces include RS-232 (RJ45 × 1) and RS-485 × 1 for keyboard and PTZ controller integration. Remote PTZ control via transparent channel is supported.

Thermal Camera and VCA Integration

The decoder supports access by thermal network cameras, displaying temperature measurement data, dynamic fire source detection, ship detection and VCA information in live view and playback mode. Smart information display can be enabled or disabled per channel.

Management and Integration

The decoder is managed via web browser (Chrome 45+), Hikvision client software and SDK. ONVIF and GB28181 protocols enable integration with third-party platforms and network keyboards. Remote parameter acquisition, configuration, and import/export are supported. Over-the-air firmware updates are available.

KEY BENEFITS

• 128 decoding channels supports large-scale camera deployments on a single device
• 16 HDMI outputs enables extensive video wall configurations without additional equipment
• 4K output on odd HDMI interfaces supports large-format UHD display walls
• 24MP decoding capability supports the highest resolution Hikvision cameras
• Active and passive decoding modes provide flexible stream acquisition
• Dual Gigabit Ethernet and dual fibre interfaces with link aggregation support
• VGA and DVI-I local inputs allow PC and conference sources on the video wall
• 8 alarm I/O, RS-232 and RS-485 for integration with controllers and keyboards
• Thermal camera integration with temperature data display
• Regular and irregular virtual screens support creative display wall configurations
• ONVIF and GB28181 support for third-party camera and platform integration
• Web browser, client software and SDK management

KEY FEATURES

• 16-output 4K UHD video wall decoder
• 128 decoding channels (1080p@30fps)
• Max decoding resolution: 24MP (3-encoder-tracks mode)
• 16 × HDMI outputs — 4K@30Hz (odd interfaces) / 1080p@60Hz / 720p@60Hz
• 8 × BNC outputs via DB15 × 2 — PAL 704 × 576 / NTSC 704 × 480
• 1 × VGA input + 1 × DVI-I input (up to 1080p)
• H.265+ / H.265 / H.264+ / H.264 / Hik264 / MPEG4 / MJPEG decoding
• PS, RTP, TS, ES, HIK encapsulation
• Active and passive decoding modes
• Split screen: 1/4/6/8/9/12/16/25/36
• Up to 64 scenes
• 2 × RJ45 10/100/1000M + 2 × optical fibre (combo)
• Link aggregation (port aggregation)
• 8 × alarm in, 8 × alarm out
• 16 × audio outputs (DB15 × 2)
• 1 × two-way audio in, 1 × two-way audio out (3.5mm)
• RS-232 (RJ45) × 1, RS-485 × 1
• Remote PTZ control
• ONVIF, GB28181 supported
• Thermal camera VCA data display
• Power: 100–240 VAC, ≤108W
• Dimensions: 440 × 321 × 88mm, ≤6.4kg
• Operating temperature: −10°C to +55°C

IDEAL FOR

• Large-scale video wall command centres
• Traffic and city surveillance control rooms
• Enterprise security operations centres
• Airport, port and transport hub monitoring
• Broadcast and production control rooms
• Critical infrastructure monitoring
• Multi-display surveillance installations requiring 4K output

FREQUENTLY ASKED QUESTIONS (FAQs)

What is the Hikvision DS-6916UDI(B) used for?

It is a professional video wall decoder for large-scale IP surveillance deployments. It decodes up to 128 channels of video from network cameras and NVRs simultaneously and outputs them across up to 16 HDMI displays and 8 BNC monitors, suited to command centres, control rooms and enterprise security operations.

What is the difference between the DS-6916UDI(B) and the DS-6916UDI?

The "(B)" variant is an updated hardware revision with firmware version V2.6.x. The core specifications — 128 channels, 16 HDMI outputs, 24MP decoding — are shared with the DS-6916UDI. The (B) variant may include minor hardware or firmware improvements. Always confirm the exact firmware and compatibility requirements with your Hikvision partner.

How many cameras can it display simultaneously?

Up to 128 channels of 1080p@30fps simultaneously, or fewer channels at higher resolutions (e.g. 32 channels at 8MP@30fps, 8 channels at 24MP@30fps).

Do all 16 HDMI outputs support 4K?

No. Only the odd-numbered HDMI interfaces (1, 3, 5, 7, 9, 11, 13, 15) support 4K (3840 × 2160@30Hz) output. Even-numbered interfaces support up to 1080p@60Hz. All 16 interfaces support 1080p and 720p output.

Does it support third-party cameras?

Yes. ONVIF and GB28181 protocols are supported, as well as stream retrieval via RTSP and URL from any compatible IP source. Third-party cameras, NVRs and encoding devices that support these protocols can be integrated.

What decoding modes does it support?

Both active decoding (decoder pulls streams from cameras/NVRs) and passive decoding (encoding devices push streams to the decoder) are supported, providing flexibility for different network architectures.

How is it managed?

Via web browser (Chrome 45+), Hikvision client software, SDK, and ONVIF/GB28181. Network keyboards and serial port keyboards can also be connected for physical control of the video wall.

Does it support thermal cameras?

Yes. The decoder can access compatible Hikvision thermal network cameras and display temperature measurement data, dynamic fire source detection, ship detection and VCA information in live view and playback.