Receiving Card

A4s is a high-end receiving card developed by NovaStar, featuring small size and large loading capacity with a single card loading up to 256×256 pixels. It supports up to 24 parallel data groups and 128 serial data groups.

A4s supports pixel level brightness and chroma calibration by working with NovaLCT and NovaCLB to realize calibration on each pixel. It can effectively remove color difference and greatly improve LED display image consistency, presenting smoother images to users. In addition, it also supports image rotation in 90° increments, creating richer images and improving visual experiences.

Software and hardware designs of the A4s concern the user deployment as well as operating and maintenance scenarios, enabling easier deployment, more stable operating and more efficient maintenance.


Advanced Hardware Design

  • The small-size hardware design saves cabinet space and is suitable for a variety of application scenarios.
  • Use high-density connector which is resistant to dust and vibration and features high stability and high reliability.
  • Assembly network transformer features simple design and improved magnetic compatibility

Useful Software Design

  • Support for up to 1/64 scan.
  • Support for extension of 128 serial data groups.
  • Support for the following functions by working with NovaLCT (V5.2.0 or later):
    • Random order scanning
    • Lighting modules with extracting channels
    • Individual Gamma adjustment for RGB
    • Bit error detection
  • Mapping function
  • Support for LVDS transmission (Supported by dedicated firmware program).
  • Support for smart module (Supported by dedicated firmware program).
  • Support for quick seam correction.
  • Support for 3D function.
  • Support for pre-stored image setting of the receiving card.
  • Support for module Flash management.
  • Supports dual-power backup detection.
  • Supports monitoring voltage and temperature of itself without using other peripherals.
  • Support for monitoring of Ethernet cable communication status.
  • Support for 5-pin LCD module.
  • Support for image rotation in 90° increments.


Loading Capacity

256×256 pixels

Electrical Parameters

Input voltage

DC 3.3 V–5.5 V

Rated current

0.5 A

Rated power consumption

2.5 W

Operating Environment




10% RH–90% RH, non-condensing

Storage Environment



Packing Information

Packing specifications

Each card is shipped with an antistatic bag and anti-collision foam. Each box contains 40 cards.

Packing box dimensions

378.0 mm × 190.0 mm × 120.0 mm


70.0 mm × 45.0 mm × 7.3 mm

Net Weight

17.3 g


  • RoHS
  • EMC Class B