PIC32MX440F256H - 256K Flash, 32K RAM @ 80MHz 32-bit MIPS core

MPIDE (Mulit Platform IDE - a fork of the Arduino IDE) supports Fubarino SD board out of the box

45 Digital IO (many are 5V tolerant)

15 Analog inputs (10-bit)

2 hardware serial ports (UARTs) - one accessible on pins 28 (rx) and 29 (tx), the other on pins 8 and 9, plus a serial connection over USB (12Mbps)

Comes with headers for easy mounting on a breadboard

Directly compatible with 3.3V devices. No level converting necessary.

Small form factor - easy to integrate into your project

Great for projects that need two hardware serial ports plus a USB connection and file storate

Easy to program, no additional hardware is required to load sketches – just plug into a USB port and run MPIDE

Can be used as USB to microSD adapter

ICSP Header for use with optional Microchip hardware programmer/debuggers (like PICKit3, ICD3 or RealIce)

Can be powered through USB, or 2.3V to 13V DC input power

Extra power and ground pins for ease of wiring into your project

microSD slot connected to the PIC32 hardware SPI port for large file access from your sketches

USB bootloader (avrdude compatible) for seemless sketch uploading within MPIDE