Quatech ESU2-100 - Serial adapter - Hi-Speed USB - RS-232 - 8 ports
 $265.23 Quatech 8 port RS-232, high speed, USB 2.0 serial adapter Description Quatech USB Serial Adapters are reliable solutions for connecting multiple serial devices to a system has become increasingly dif... | Quatech QSCLP-100 - Serial adapter - PCI low profile - RS-232 - 4 ports
 $143.04 SERIAL UPCI BOARD, 4 PORT, DB-9 4 port RS-232 Low Profile UPCI board 4x RS-232 Full modem control and hardware and software flow control Standard DB-9 connectors RoHS compliant | Digi Classicboard 8 PCI Connector Not Included
 $260.94 ClassicBoardCost-effective high-speed serial communicationsOffering unparalleled speed, reliability and ease of installation, the Digi ClassicBoardfamily provides the ultimate in basic, non-intellige... |