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-B8L
Fully verified
Manufacturer class: Professional LED Poster Screen Control System
Control system for LED poster screens that integrates a player, third-party apps and local programme production, so programmes are produced and played directly on the device without a computer. It supports wireless screen casting from Windows, iOS and Android terminals and the connection of peripherals such as central control, camera, speaker, sensor and infrared touch.
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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
- 1.3 MP
- Outputs
- 2 × RJ45
- Max. width
- 65,536 px
- Mode
- Synchronous + asynchronous
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- Official product page
- Official specification / manual (V1.0) 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 1,300,000 px (2 Ethernet outputs).
Key features (manufacturer)
- Single card supports 1,300,000 pixels; cascading supports 5,240,000 pixels with up to 14 units
- Maximum width of 65,536 pixels or height of 8,192 pixels
- 2 Gigabit output network ports that cascade with receiving cards
- 2 HDMI 1.4 inputs with cascade splicing and picture-in-picture, 1 HDMI OUT for loop-out or screen monitoring
- Dual Wi-Fi chips for the 2.4G/5G bands; Wi-Fi hotspot and internet access at the same time
- Video playback capacity: 2×4K or 6×1080P or 10×720P or 20×360P streams
- Android 11.0 with 4GB running memory and 64GB internal storage
- 1 RS232 and 1 RS485 for central control, 1 TTL sensor interface and 1 K0 relay interface
Capacity and network topology
1
2
- Total capacity
- 1,300,000 px
- Max. width × height
- 65,536 × 8,192 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
- 1,300,000 px
- Maximum width
- 65,536 px
- Maximum height
- 8,192 px
- Ethernet outputs
- 2
- Port speed
- 1 Gbps
Inputs and playback
- HDMI inputs
- 2
- HDMI outputs
- 1
- Input interfaces
- HDMI 1.4 ×2, USB 3.0 ×1, USB 2.0 ×1, OTG (USB 3.0) ×1, Gigabit Ethernet ×1
- Max. decoding resolution
- 4096×2304 (2304P@60fps)
- Video codecs
- MPEG-1/2, MPEG-4, H.264/AVC, MVC, H.265/HEVC, Google VP8, Google VP9, H.263, VC-1, Motion JPEG
- Storage
- 4GB running memory + 64GB internal storage
- Operating system
- Android 11.0
- Max. frame rate
- 60 Hz
Connectivity and software
- Sensor interfaces
- TTL, RS485, RS232
- Software / platform
- HDPlayer, Xiaohui Cloud, LEDArt
Physical
- Dimensions
- 189.86mm×137.92mm×24.80mm
- Weight
- 0.60KG (±10g)
- Operating temperature
- -40℃ ~ 70℃
- Input voltage
- DC 5V (5V 6A)
- Power consumption
- 21W (maximum)
Manufacturer-specific technical data
In the manufacturer's own wording (the original English terms are kept).
Capacity
- Loading capacity
-
- Single card supports 1,300,000 pixels
- cascading supports 5,240,000 pixels
- Maximum width / height
-
Maximum width of 65,536 pixels or height of 8,192 pixels
- Cascading
-
Maximum cascading support of 14 units
Network
- Input network port
-
Gigabit Ethernet port, communication via TCP/UDP
- Wi-Fi
-
- Dual Wi-Fi chips, 2.4G/5G bands
- Wi-Fi hotspot and internet access simultaneously
- 4G/5G
-
PCIE 4G/5G module holder (optional function)
Interfaces
- Output network ports
-
2 RJ45 Gigabit output network ports, cascade with HD receiving cards
- HDMI IN
-
- HDMI 1.4 with adaptive scaling
- recommended 1920×1080@60Hz, maximum 3840×2160@30Hz, minimum 800×600@60Hz
- customized resolution and HDCP 1.4
- HDMI LOOP
-
- HDMI 1.4, synchronized signal input or splice input
- maximum 2048×1152@60Hz, minimum 800×600@60Hz
- HDMI OUT
-
HDMI1.4b output, for cascading data loop-out or screen monitoring
- USB
-
USB 3.0 ×1, USB 2.0 ×1 and OTG (USB 3.0) ×1 for material storage, program updates, firmware upgrades or capacity expansion
- Audio
-
- TRS 3.5mm dual-channel audio output
- reserved differential MIC input
- Serial, sensor and relay ports
-
RS232 ×1, RS485 ×1, TTL sensor interface ×1, K0 relay (maximum load AC 250V~3A or DC 30V~3A)
Control
- System
-
- Android 11.0
- running memory 4GB, internal storage 64GB
- Supporting software
-
HDPlayer (PC), Xiaohui Cloud (Web), LEDArt (mobile APP)
Playback
- Video playback capacity
-
2×4K or 6×1080P or 10×720P or 20×360P streams
- Video decoding
-
- H.264, H.265/HEVC and VP9 up to 4096×2304 pixels
- H.264 and H.265 2304P@60fps
Electrical
- Input power
-
- DC 5V (5V 6A)
- maximum power consumption 21W
- standby <0.5W
Physical
- Size and weight
-
- 189.86mm×137.92mm×24.80mm
- net weight 0.60KG (±10g)
- protection level IP20
- Work environment
-
-40℃ ~ 70℃, 0%RH ~ 80%RH (no condensation)
Sources
Source note
Compiled from the HD-B8L specification V1.0 (May 15, 2025). maxLoadingPixels is the single-card figure (1,300,000); the 5,240,000 figure applies to cascading several units and is kept in specs. The document prints the maximum width/height in the same sentence as the cascading capacity. No per-port capacity is printed. 4G/5G needs the optional module, so cellular4G is left null. The TTL interface accepts external sensors or GPS; no built-in GPS is stated. The product is a bare board (no enclosure).
- HD-B8H/B8L/B6L
- PRODUCT SPECIFICATION Professional LED Poster Screen Control System HD-B8L Version: V1.0
- Official product image — HD-B8L (PRODUCT SPECIFICATION Professional LED Poster Screen Control System HD-B8L Version: V1.0)
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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