USB UniDigi YAESU Interface With PTT for Digital Modes Psk / Psk31 / Rtty / Sstv Best value for money interface No need to plug and unplug your mic & speakers. Just connect it to a free USB port Compatible with Yaesu FT-100, 817, 857, 897, 450, 950, DX1200, DX3000 &amp; FT-7800, 8800 and variations of these models (transceivers not included) and all other radios with mini din 6 pins input/output data port. Supports FLDIGI, MMSSTV, DIGIPAN, MultiPSK and any other program that can send PTT tone to right audio channel or play the digital signal to both audio channels