Adafruit RGB Matrix HAT + RTC for Raspberry Pi - Mini Kit Simple design - plug in power, plug in IDC cable, and run Adafruit's Python code. Onboard level shifters to convert the RasPi's 3.3V to 5.0V logic for clean matrix driving. Works with Adafruit 16x32, 32x32 or 32x64 RGB LED Matrices with HUB75 connections. You can even chain multiple matrices together for a longer display. Included: RGB Matrix HAT controller. NOT Included: RGB LED Matrix (sold separately), Raspberry Pi, 5V power supply, or coin cell battery for Real Time Clock. (Real Time Clock not needed for unit to function)