Support for IDE 1.0+ (OSX/Win/Linux). Power via USB or External Source - 5V or 7-35V (automatic selection). On-board 500mA 5V Regulator. Built-in USB (and serial debugging). 6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB). 8k Flash Memory (about 6k after bootloader). I2C and SPI (vis ). PWM on 3 pins (more possible with Software PWM). ADC on 4 pins. Power LED and Test/Status LED (on Pin0) Colour: black Material: PC+metal Package Contents: 1 * ATtiny85 USB for Compatible Development Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.