Full Color RGB LED Matrix Driver Shield + RGB Matrix Screen - RobotShop

Gravity: I2C 8x16 RGB LED Matrix Panel - DFRobot

Adafruit RGB Matrix Shield for Arduino : ID 2601 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits

32x32 RGB LED Matrix Panel (4mm pitch) - RobotShop

RGB 8x8 64 I2C 24 bit Color Programmable LED Matrix Panel for Raspberry Pi - RobotShop

RGB Shield for Arduino - RobotShop

NeoPixel-type Addressable RGB LED Matrix Shield for Arduino — PMD Way

SmartMatrix SmartLED Shield for Teensy 4 : ID 4828 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits

New 8x8 Matrix Driver Shield Full Color Rainbow Colorduino V2.0 DM163 RGB LED Driver Board Module 5V FT232 USB for Arduino

32x16 RGB LED Matrix Panel (6mm pitch) - RobotShop

Waveshare RGB Full-Color LED Matrix Panel, 2.5mm Pitch, 64x32 px - RobotShop