HD-R732
Receiving card · R7 Series
- Capacity262.1 K px
- Area256×1024
- Data groups32
Technical support · We help with set-up and use
Official product image — source: Huidu.
Huidu · Multimedia player
HD-A8
Fully verified
A Series (dual-mode) Manufacturer class: Dual-mode multimedia player (4K super controller)
4K super controller for full-color LED displays with 4K video decoding, asynchronous and synchronous mode playback and multi-window display. It has 16 Gigabit output network ports, dual-frequency Wi-Fi, "XiaoHui Cloud" remote cluster management and 32GB of onboard storage.
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- Setup supportFor Colorlight, NovaStar and Huidu systems we do the setup by connecting remotely with AnyDesk; call us about mounting.
- Compatibility checkCompatibility with the other components is checked during configuration.
- Order trackingShipping and installation status is tracked on your order page.
Key specifications
View Technical Details- Capacity
- 8.29 MP
- Outputs
- 16 × RJ45
- Max. width
- 16,000 px
- Mode
- Synchronous + asynchronous
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- Official product page
- Official specification / manual (V2.4) opens from the manufacturer's page
Best suited for
- Advertising and information displays managed through the cloud without a permanent PC.
- Synchronous installations where a PC or live HDMI/DVI source is shown one-to-one on the display.
- Displays with a total load of up to 8,290,000 px (16 Ethernet outputs).
Key features (manufacturer)
- 16-channel Gigabit output network port on board for cascading receiver cards
- Asynchronous mode: maximum loading capacity of 8.29 million pixels, maximum width of 65,536 pixels
- Synchronous mode: maximum loading capacity of 10.4 million pixels, maximum width of 16,000 pixels
- 5 channel HDMI input and 1 channel DP input for synchronous playback, with 4 windows screen playback
- Hard decoding of 1-channel 4K video or 4-channel 1080P video
- Standard 2.4GHz and 5GHz dual-frequency Wi-Fi with mobile APP wireless control; optional 4G/5G
- Synchronous and asynchronous mode switching and mixed playback
- Android 10.0, 4G running memory and 32GB internal storage with USB expansion
Capacity and network topology
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- Total capacity
- 8,290,000 px
- Max. width
- 16,000 px
- Operating mode
- Synchronous + asynchronous
Technical specifications
- Synchronous (live) mode
- Asynchronous (stored) mode
- Wi-Fi
- LAN
- USB playback
- Cloud / remote management
Capacity and outputs
- Loading capacity
- 8,290,000 px
- Maximum width
- 16,000 px
- Ethernet outputs
- 16
- Port speed
- 1 Gbps
Inputs and playback
- HDMI inputs
- 5
- Input interfaces
- HDMI ×5, DP ×1
- Max. decoding resolution
- 4K (3840×2160)
- Video codecs
- MPEG-1/2, MPEG-4, H.264/AVC, MVC, H.265/HEVC, VP8, VP9, H.263, VC-1
- Storage
- 32GB internal storage, 4G running memory
- Operating system
- Android 10.0
Connectivity and software
- Sensor interfaces
- Sensor interface ×2
- Software / platform
- XiaoHui Cloud
Physical
- Dimensions
- 432mm×270mm×64.2mm
- Weight
- 4.8kg (packaging included)
- Operating temperature
- -10℃~45℃
- Input voltage
- AC 100-240V 50/60Hz
- Power consumption
- 72W
Manufacturer-specific technical data
In the manufacturer's own wording (the original English terms are kept).
Capacity
- Asynchronous mode
-
Maximum loading capacity of 8.29 million pixels and a maximum width of 65,536 pixels
- Synchronous mode
-
Maximum loading capacity of 10.4 million pixels and a maximum width of 16,000 pixels
- Storage space
-
- Running memory 4G
- internal storage 32GB
- USB expansion supported
Network
- Wi-Fi
-
- Standard 2.4GHz and 5GHz dual-frequency Wi-Fi
- STA mode supported
- mobile APP wireless control
- 4G/5G
-
Optional 4G/5G module with SIM card slot for Internet access to the cloud platform
- Cloud platform
-
"XiaoHui Cloud" platform remote cluster management
Interfaces
- Output network ports
-
16-channel Gigabit output network port on board, cascades receiver cards
- Communication network port
-
1 channel Gigabit communication network port for debugging parameters and sending programs
- Video inputs
-
- 1 channel HDMI IN interface (synchronous picture auto-scaling, picture-in-picture)
- 5 channel HDMI input interface and 1 channel DP input interface for synchronous playback
- USB
-
- 3 channel USB HOST interface for U disk program update / playback or capacity expansion
- 1 channel USB OTG interface
- Sensor input
-
2-way sensor input interface for external environmental detection sensors
- Audio and serial port
-
- 1-channel TRS 3.5mm standard dual-channel audio output
- RS232 serial port
Control
- System software
-
Android 10.0
Playback
- Video decoding
-
Hard decoding of 1-channel 4K video or 4-channel 1080P video
- Video formats
-
- MPEG-1/2, MPEG-4, H.263, VC-1 1080P@60fps
- H.264/AVC 4k×2k@30fps
- H.265/HEVC, VP9 4K×2K@60fps
- MVC, VP8 1080P@30fps
- Image formats
-
JPEG (48×48 to 8176×8176), BMP, GIF, PNG, WEBP
- Playback modes
-
- Synchronous and asynchronous mode switching and mixed playback
- 4 windows screen playback of HDMI/DP signals
- optional mobile phone / tablet wireless casting
Electrical
- Power
-
- AC 100-240V 50/60Hz
- maximum power consumption 72W
Physical
- Sizes and weight
-
- 432mm×270mm×64.2mm
- 4.8kg (packaging included)
- Environment
-
- Working -10℃~45℃
- storage -40℃~80℃
- 0%RH~95%RH (non-condensing)
- IP20
Sources
Source note
maxLoadingPixels is the asynchronous-mode figure (8.29 million); the synchronous-mode figure (10.4 million) is in specs. maxWidthPx is the lower of the two printed widths (16,000 pixels in synchronous mode; 65,536 pixels in asynchronous mode). The document states no maximum height and no per-port capacity. hdmiInputs is 5: the feature list names "1 channel HDMI IN" and "5 channel HDMI input"; the rear panel photo shows HDMI1–HDMI4 plus HDMI IN. 4G/5G is an optional module. The document does not state an output frame rate; 60fps appears only as a video decoding limit.
- HD-A8 Specification
- Shenzhen Huidu Technology Co., Ltd.—HD-A8/A7
- Shenzhen Huidu Technology Co., Ltd.—HD-A8/A7
- Product Specification 4K Super Controller HD-A8 V2.4
- Official product image — HD-A8 (Product Specification 4K Super Controller HD-A8 V2.4)
Dataset: 2026.10.12-1 · last verified: Oct 7, 2026
Interoperability between receiving cards and controllers from different manufacturers is not assumed without official documentation.
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