US232-2 Perfect for GPS and PDA Conversion The EasySync US232 Two Port USB Adapter is housed in a strong plastic enclosure and designed for rugged application areas. EasySync US232 Two Port adds two Windows serial Com ports via it's USB connection and is compatible with new & legacy RS-232 devices. USB Plug and Play allows easy serial port expansion and requires no IRQ, DMA, or I/O port resources. Connection to USB is via a 0.9m detachable USB cable ( supplied ). Longer USB cables can be purchased separately if required - see our Cables Page for details. . Features Full set of RS-232 modem data and control signals ( TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, and GND ) on it's PC compatible DB9 male connector Internal 128 byte transmit buffer FIFO and a 384 byte receive buffer FIFO Supports RS232 data transfer rates of up to 460K bps No external power supply is required Drivers for Microsoft Windows '98, Windows ME, Windows 2000 and Windows XP VISTA 32/64Bit and New Windows 7 Drivers for Apple OS-8, OS-9 and OS-X Drivers for Linux