Amazon.com: 2PCS LED Matrix Panel High-Definition Indoor Led Display Digital LED Module LED Display Screen P2.5 64x64 RGB SMD3 in 1 Plain Color Inside(6.29" x 6.29" x 0.5") : Electronics
2 In 1 3mm Rgb Led Panel,high Resolution, 64x64,192mm * 192mm,black Leds,smd Full Color 1/32s Indoor P3 Led Display Panel - Led Displays - AliExpress
1BitSquared - RGB LED Panel, 64x64 pixels, 2mm pitch, 128x128mm
RGB LED Matrix Panel - 32x32 6mm pitch
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64x64 RGB LED Matrix - 3mm Pitch [192mm x 192mm] : ID 4732 : $59.95 : Adafruit Industries, Unique & fun DIY electronics and kits
P2 Full Color Led Display Module 64x64,p2 128x128mm Rgb Led Panels,pinball Machine Led Panel,led Matrix,compatible With Pin2dmd - Led Displays - AliExpress
RGB LED Matrix Panel - 64x64 | Sparkfun COM-14824 | Core Electronics Australia