What Is the Kystar S2 LED Sending Card?
The Kystar S2 receives digital video through DVI and sends display data to compatible LED receiving cards through two Gigabit network outputs. It is a sending component for full-color LED screen control systems, with USB configuration, EDID management and stored configuration recovery. Match it to your screen’s receiving cards and module settings before installation.
Uses and Features
- Two LED data outputs: distribute screen data across the two sending ports according to the configured cable order.
- EDID management: configure source timing information to match the supported LED screen layout and DVI signal.
- Configuration recovery: read back compatible receiving-card configuration when replacing a sending card, or resend stored configuration when replacing receiving hardware.
- Stereo audio input: transmit audio with suitable downstream multifunction hardware. Kystar’s official S2 page identifies MF630 for this workflow.
Verified S2 Specifications
| Specification | Details |
|---|---|
| Video input | 1 DVI-D input; supports custom input resolution signals within supported timing limits. |
| Audio input | 1 stereo input, 3.5 mm. Audio transmission requires a compatible multifunction card and configured receiving path. |
| LED data outputs | 2 Gigabit network ports, P1 and P2, for connections to receiving cards. |
| Control | 1 USB Type B control port for configuration through PC software. |
| Maximum LED pixel load | Up to 1.31 million pixels per sending card; both ports share the card’s total capacity. |
| Maximum screen width | 4,000 pixels, subject to total pixel load and supported input timing. |
| Maximum screen height | 2,000 pixels, subject to total pixel load and supported input timing. |
| Power connection | The original specification identifies 5 V power connections. Confirm the connector, polarity and applicable card revision before supplying power. |
| Configuration functions | EDID management, stored configuration backup, readback and configuration resend/recovery with compatible hardware. |
Pixel Budget, Receiving Cards and Installation
The 4,000-pixel width and 2,000-pixel height are independent dimension limits. They do not establish support for a 4,000 × 2,000 screen: that canvas contains 8 million pixels, above the card’s 1.31-million-pixel total. Check width, height, pixel count, DVI timing and the allocation of receiving cards to each port together.
Connect the DVI source to the sending card and the network outputs to compatible LED receiving cards. These outputs carry LED display data; do not assume they function as ordinary internet or LAN connections. Configure module parameters, receiver loading, cable order and screen coordinates through the supported software, then save the working configuration.
Verify the exact receiving-card model, firmware, panel driver configuration and intended refresh behavior. If the card is installed in an enclosure such as the Kystar KS606 sending box, confirm mechanical fit, internal power wiring and connector clearance.
Frequently Asked Questions
Is S2 a video processor or media player?
Its documented role is sending DVI video data to LED receiving cards. Use suitable upstream equipment when you need video scaling, source switching or media playback.
Does configuration backup mean network-port redundancy?
No. The preserved specifications document stored configuration and recovery functions. Confirm any network-port redundancy requirement separately against the supplied hardware and firmware; it is not established by configuration backup alone.
Can S2 transmit audio by itself to speakers?
The card accepts stereo audio, but the documented transmission workflow uses compatible multifunction hardware such as MF630. Confirm that accessory and the audio output arrangement.
Summary and Documentation
Choose S2 for a compatible LED system within its two-port, 1.31-million-pixel capacity. Confirm source timing, receiving-card settings, power connection and any audio accessories. Refer to the official Kystar S2 product page and the preserved model documents below for revision-specific details.
Original Product Images and Downloads
More Pictures of KYStar S2 Full Color LED Screen Sending Card:


Download Specification
KYStar S2 Full Color LED Screen Sending Card Specifications(Chinese)
KYStar-S2-Full-Color-LED-Screen-Sending-Card-specification.pdf









