1. Integrated interface, sound card serial port two-in-one; 2. Support TTL/232 level; 3. Support USB serial port PTT control (support PTT with Control (Data audio, like FT8, JT65, etc.)); 4. Mini design, the size is only 53x24x14mm (excluding protruding part of USB ); 5. Dual 3.5mm plug 4PIN function definition, can flexibly connect different devices; USB2RIG is an interface device for connecting a computer to a radio station for audio/control conversion. It is suitable for radio equipment such as , , and ICOM. It supports TTL/232/CIV and uses CM108 as a USB sound card conversion interface. It is compact and easy to install. Support 3.3v voltage output (such as LAB599 TX500); Reserve spare function expansion port. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect use. Colour:Black Material:plastic Package Contents: 1 x USB Sound Card Connector Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.