Features: PC connected directly via USB cable for XBee adapters Bluetooth Bee configuration or use as a data transmission For ARDUINO PRO MINI downloader Draw out all signal port of FT232RL chip RXD/TXD transceiver communication indicator Specifications: Chip: FT232RL USB power: 5V or 3.3V set by jumper. Color: blue Size: 4cm x 2.5cm Net Weight: 7g Package included: 1 x FT232RL USB to Serial adapter module USB For Arduino Note: It can't use for win8please know it .