The Snom SNOM-4393 is a 10-watt external power pack which used to allow secure operation of the telephone handset where PoE switches are not available. It is designed to work accurately with all Snom handsets including the complete ranges of 3 series, 7 series, D7 series and 8 series handsets such as Snom 300, 320, 360, 370, 715, D712, D715, D725, D745, D765, D785, D735, D717, 820, 821, 870 desk phones. FEATURES - Device Type: Power Adapter - Compatible with : Snom 300, 320, 360, 370, 715, D712, D715, D725, D745, D765, D785, D735, D717, 820, 821, 870 desk phones - Colour: Black - Snom power supplies come with the cable and AUS adapter that connects directly to the handset if the user does not have PoE switch to allow the handsets to be powered.