Medium 16x32 RGB LED matrix panel Pixel Pitch: 6mm - Corzotech
LEDMW wholesale 32x16 and 32x32 rgb led matrix panel for Raspberry Pi display P6 Painel Digital LED Pixel RGB led display panel|p6|panel pcspanel room - AliExpress
32x32 RGB LED Matrix Panel 6mm pitch - Proto-PIC
32x32 RGB LED Matrix Panel - 6mm pitch : ID 1484 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits