HD-R708 HUB75E receiving card
The Huidu HD-R708 receives display data from a sending device and connects to LED modules through onboard HUB75E ports. Its module support and loading depend on the driver chip and scan configuration, making those details useful checks before a replacement purchase.
Product parameters
| Parameter | Specification |
|---|---|
| Model | Huidu HD-R708 |
| Module connections | 8 HUB75E ports |
| Conventional-chip loading | 128 × 512 |
| PWM-chip loading | 256 × 512 |
| Fine-pitch loading note | PDF lists P1.667, P1.538 and P1.25 as supporting full loading through 8 ports |
| Supported modules | Conventional chips and mainstream PWM chips |
| Scanning | Static to 1/128 scan |
| Network interfaces | 2 Gigabit Ethernet |
| Power connectors | 2 |
| Input voltage | DC 4.0–5.5V |
| Working power | 5 W |
| Grayscale | 256–65,536 levels |
| Cable distance | Super Cat5 or Cat6 within 80 m |
| Card chain | Arbitrary ordering |
| Setup / diagnostics | Intelligent setup, screen wiring settings and onboard display test |
Module compatibility and configuration
Identify the LED module’s driver chip, scan mode and HUB75E pin arrangement first. Apply the loading value for that chip type, then configure the card through intelligent setup and screen wiring settings. The retained images and PDFs help identify the board and its connectors.
Frequently asked questions
What is the HD-R708 loading capacity?
The specification lists 128 × 512 for conventional chips and 256 × 512 for PWM chips. Check the module chip type before planning the receiving-card layout.
How many HUB75E ports are included?
The R708 has 8 onboard HUB75E module ports, along with two Gigabit Ethernet ports.
Can it work with synchronous and asynchronous controllers?
The listed sending-device types include dual-mode sending boxes, asynchronous and synchronous sending cards, and VP-series video processors.
What scan modes does it support?
It supports static to 1/128 scan. The module driver chip and wiring must also match the configuration.
What power supply is required?
The specified input range is DC 4.0–5.5V. A standard 5V supply is recommended in the PDF.
Original product images and diagrams
PDF downloads
HuiDu HD-R708 led receiving card Specification（Chinese）
HuiDu HD-R708 led receiving card Specification
