1. STRONG COMPATIBILITY: Connect sound codec, CAT control, and switch to a computer via a single USB connector. Compatible with for , for , for iOS. No drivers needed. 2. FULL FUNCTIONALITY: Works with for FT8, for FT4, for JS8Call, for , for SSTV, for , for APRS, for VaraHF, for VaraFM, and for Soundmodem. Allows full CAT control in powerful ceivers and adjustments for HT and basic mobile radios. 3. HIGH RELIABILITY: Prefabricated ceiver cables are available for popular for , for , and other , giving you a professional and user experience. 4. INTEGRATED INTERFACE: Combines sound card and serial port into one. Supports TTL/232 levels, USB serial control, and flexible connection to different devices with dual 3.5mm 4 pin jacks. 5. VERSATILE SOUND AND SERIAL PORTS: Defines sound input and output, PPT control (USB serial control, non sound), and serial port input and output (default TTL, can be changed to 232) Item Type: Integrated Digital Modes Interface Power Supply: USB Powered Interface: 1 x Sound, 1 x Serial Colour:As Shown Material:Plastic Package Contents: 1 x Extension Module Only the above package content, other products are not included. Note: Light reflection 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!