Tested and working with:
AVR Studio 4, AVR Studio 5, Atmel Studio 6, Atmel Studio 7
Tested and working with:

Arduino and AVRDUDE after a firmware change

Tested and working with OS:

Windows XP, Windows 7, Windows 10, Debian Linux, Ubuntu 14.04

Connects to PC via:

USB type B at 2.0 Full speed

No need for external power supply as it takes the power supply from USB

Uses Atmel's 2x5 pin ICSP and 2x3 pin PDI and TPI connector layout

Works with:

5V and 3.3V targets and can supply target with power (selectable)

Programs:

both flash and EEPROM

Supports fuses and lock bit programming

Upgradeable for future device support

Supports target voltages:

from 1.8V to 5.5V

Adjustable ISP programming speed:

(50Hz to 8MHz SCK frequency)

Dimensions:

(45x30) mm ~ (1.7x1.2)" + 20 cm ~ 8" cable