>visionsystems.de/VScom USB-4COM (616.html)   Features RS232 DB9 male ports Speed up to 500 kbps no external power supply       VScom USB-4COM Quick Link: | Features | More Pictures | Overview | Hardware Specifications | Ordering Information | Download | |   More Pictures Klick on the thumbnails to enlarge them … >Back to top         Overview Serial ports on USB allow further use of existing devices, even when the computer doesn't offer serial ports. The high speed serial port with the 128 byte FIFO allow high speed communication, even in heavy loaded systems. Unique features reduce the system load. The serial port also allows unusual speed settings like 500.000bps.   Hardware Specifications Serial interface 4 x RS232 Connectors 4 x DB9 male Speed up to 500 kbps Signals TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND USB Interface USB 2.0 Bus powered No external power supply Driver Windows 2000 to Windows 7 Windows Server 2000 to 2008 R2,  both x86 and x64 Editions. Linux (Kernel 2.6 built-in, 2.4 available) >Back to top         Ordering Information Part Number 616 Product Name VScom USB-4COM Packing list VScom USB-4COM Adapter USB cable 0,9m CD Englich Documentation >Back to top       Download   Windows XP to 7 Server 2003 to 2008 R2 x86 + x64 Editions  (CDM Installation executable (Oct. 14 2011)) Windows 2000  (CDM Installation executable (Oct. 22 2009)) Support for Linux Kernel 2.6.31+  (built-in) Other  (Mac OS, WinCE and more) Some Tools  (Most for Windows) Signals RS232  (Pinout DB9) >Back to top