HD-H8 multimedia playback and wireless screen projection
The Huidu HD-H8 brings local program creation, media playback and third-party app content to LED displays. Programs can be produced and played on the terminal without a separate computer. Wireless projection and peripheral connections support meeting rooms, exhibition halls, educational spaces and hotel lobbies.
Display and playback specifications
| Parameter | Specification |
|---|---|
| LED display outputs | 8 Gigabit Ethernet ports for HD receiving cards |
| Total loading capacity | 5.24 million pixels |
| Maximum width / height | 65,536 pixels wide or 8,192 pixels high; within total loading capacity |
| Video playback alternatives | 2 × 4K, or 6 × 1080p, or 10 × 720p, or 20 × 360p video channels |
| Operating memory | 4 GB |
| Internal storage | 64 GB |
| Wi-Fi | Dual Wi-Fi chips; 2.4 GHz / 5 GHz; hotspot and wireless Internet connection simultaneously |
| Projection platforms | Windows, iOS, Android and screen-projection devices |
| Power input | DC 5–12 V; 5 V 6 A or 12 V 3 A |
| Maximum power consumption | 21 W |
| Standby power | Less than 0.5 W; infrared standby wake-up |
| Dimensions | 289.2 × 141 × 44 mm, including mounting ears |
| Net weight | 1.34 kg |
| Protection level | IP20 |
| Operating environment | −40 to 70 °C; 0–80% RH, non-condensing |
| Storage environment | −40 to 80 °C; 0–80% RH, non-condensing |
The width and height figures are independent limits, subject to the total pixel load. The listed playback channel counts are alternative workloads at each resolution.
Inputs, outputs and control connections
| Parameter | Specification |
|---|---|
| Network connection | 1 Gigabit Ethernet port; TCP/UDP communication |
| HDMI inputs | 2 × HDMI 1.4; cascade splicing and picture-in-picture |
| Optical input | 1 × SFP IN; cascade splicing and duplicate display |
| USB | 2 ports, USB 2.0 / USB 3.0; program playback, firmware upgrades or storage expansion |
| OTG | 1 interface; configurable OTG/USB mode, default USB-drive function |
| Sensor connection | 1 interface for environmental sensors or GPS |
| Serial control | 1 × RS232 and 1 × RS485; central control via RS232 or RS485 |
| Relay | 1 RELAY interface |
| HDMI output | 1 HDMI OUT; cascade loop-out or screen monitoring |
| Optical output | 1 SFP OUT; data source for the next device’s SFP IN |
| Audio output | 1 × 3.5 mm TRS stereo |
Create programs and connect external equipment
Build, edit and play programs locally, or use third-party apps for content publishing. HDMI and optical cascading support multi-device layouts, with optical fiber providing a long-distance transmission option. The two HDMI inputs also support picture-in-picture.
Dual-band Wi-Fi supports wireless projection while the hotspot and wireless Internet connection remain available together. Bluetooth supports voice control and peripherals such as speakers, keyboards and mice. Central-control, sensor, camera and speaker connections extend the player’s role in interactive installations.

Specification download
Download the HD-H8 specification (Chinese PDF)
Frequently Asked Questions
Can the Huidu H8 create programs without a computer?
Yes. The H8 supports local program editing, production and playback on the terminal, alongside content publishing through third-party apps.
How many pixels can HD-H8 load?
Its total loading capacity is 5.24 million pixels through eight Gigabit display outputs. Maximum width is 65,536 pixels or maximum height is 8,192 pixels, within that total capacity.
Can I cast to H8 from a phone or computer?
Yes. Wireless projection is supported from Windows, iOS and Android terminals and screen-projection devices. Its dual Wi-Fi chips support 2.4 GHz and 5 GHz operation.
How many videos can the H8 play?
The listed alternatives are two 4K videos, six 1080p videos, ten 720p videos or twenty 360p videos. These are separate workload options, not a combined channel count.
Can H8 units be cascaded?
Yes. HDMI and optical cascading are supported. HDMI OUT provides loop-out or monitoring, and SFP OUT supplies the SFP IN of the next device.






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