... specifications RS-232/422/485 port supported (only ADAM-4561) Transmission speed up to 115.2 ... no power adapters to deal with. Thismakes the ADAM-4561/4562 especially suitable for modems, printers, ... control devices.Compliant with USB V1.1, ADAM-4561/4562 features several powerful functions such as ... . By simply plugging in a USB hub, ADAM-4561/4562 eliminates the configuration issues associated with ...