Altivar ATV312 variable frequency drives (VFD) provide a compact, cost effective adjustable speed control for asynchronous motors from 0.25 to 20 HP. It is compatible with Altivar Machine ATV320, Altivar 12, Altivar 312 Solar, Lexium 32i, Lexium ILA, ILE, ILS, Acti 9 Smartlink, Lexium 28, SoMove and Altivar Machine ATV340 products. It enables direct connection of a computer to a drive, avoiding difficult-to-find adapters.