Get the Maker Uno Starter Kit here!

Features:

SMD ATmega328P microcontroller(the same microcontroller on Arduino UNO) with Optiboot (UNO) Bootloader
USB Programming facilitated by the CH340
Input voltage: USB 5V, from computer, power bank or standard USB adapter
500mA (maximum) 3.3V voltage regulator
0-5V outputs with 3.3V compatible inputs
14 Digital I/O Pins (6 PWM outputs)
6 Analog Inputs
ISP 6-pin Header
32k Flash Memory
16MHz Clock Speed
R3 Shield Compatible
LED array for 5V, 3.3V, TX, RX and all digital pins
Utilize USB Micro-B socket
Purple PCB!
Tutorials:

Getting Started
Documents:

Maker UNO User's Manual
CH340 driver
Windows
Linux (Normally is readily installed)
Mac OS
Maker UNO Schematic
Maker UNO Fritzing File
Arduino IDE Download
Sets:

Maker UNO Edu Kit (Specially packed for education purpose)