Features: is a software-defined radio peripheraled capable of transmitting or receiving radio transmission from 1MHz to 6GHz. It is to enable testing and development of modern and nextly generation radios technologies and is open source hardware platform It can be used as a USB peripheraled or programmed for standalone operation. Can be used for spectrum analysis, laboratory research, radio communication development and testing of various wireless protocols. Suitable for radio hobbyists, engineers and researcher for learning, developing and testing radio technologies. Specifications: Material: Plastic Size: about 12.1x7.6cm/4.76x2.99in Support：1MHz to 6GHz operating frequency Support：Half-duplex transceiver Up to 20million sample per second 8bit quadrature sampling (8bit I and 8bit Q) Compatibles Radio Software-controlled antennae port power supply (50mA at 3.30V) SMA female antennae connector SMA female clock input and output for synchronization Convenient programming button Fast Speed USB2.0 USB power supply Package Includes: 1Set Mainboard and TCXO External Clock Module note: Due to the different monitors and light effect, the actual color the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measuring difference due to manual measurement.