usb serial adapter from $19.95 only at serial adapter source www.USBSERIAL.com
USB to Serial Adapters (RS232, RS422 & RS485) 1303
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USB to Serial Adapters (RS232, RS422 & RS485)

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USB to four serial port converter with DB9 (9-pin male) connectors. RS-422/RS-485
Features : USB-4COMi l Adds four high speed RS-422 ports via USB connection l 384 byte receive buffer l 128 byte transmit buffer for high data throughput l Data rates: 300 bps to 2...
Part No. USB-4COM-I | View Details
$139.98
Cheap USB RS-232 Serial Adapter DB-9 Female 12-Inch Cable with Hex Nuts
Features : SORRY NO STOCK, please look over our other items that are available and ready to ship same day. USB Serial Adapter Low Cost No Frills Adapter for standard end-user applications that require serial ...
Part No. CHEAP-SERIAL | View Details
$14.77
2 Port USB to RS-232/422/485 Auto Setup Adapter for Windows Linux and Mac
Features : 2 Port RS232/422/485, software configurable VScom USB-2COM PRO Transfer Speed up to 921.6kbps RS232, up to 3Mbps RS422/RS485 Metal case DIN-Rail mountable RS232/422/485 DB9 male port T...
Part No. USBG-2COM-PRO | View Details
$159.98
10ft. Long USB to Serial Adapter Cable with Screws and Three LED display
Features : Unique USB to serial adapter cable with screw style db-9 male connector and shielded 10ft. long USB cable that uses the Prolific PL-2303 Chip it also has three color LED display USBG-3M232-STP is...
Part No. USBG-3M232-STP | View Details
$16.23
USB RS-232 Serial Adapter DB-9 Male works with all Windows and Mac
Features : USB Serial Adapter Supports Windows 7 and Vista (32 and 64-Bit) Install as a standard Windows COM port, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD,...
Part No. USBG-232 | View Details
$18.09
USB RS-232 Serial Adapter DB-9 Male works with all Windows and Mac
Features : USB Serial Adapter SW-1301 Connect MOST Serial Devices to a USB Port Microsoft Certified and Signed Drivers High Speed Serial Best in Class Compatibility Data and Status LED Plug&Play...
Part No. SW-1301 | View Details
$18.45
USB RS-232 Serial Adapter DB-9 Male works with all Windows and Mac
Features : USB Serial Adapter Install as a standard Windows COM port, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND This USB to Serial converter allow...
Part No. as11aaa | View Details
$18.45
Passive RS-232 to RS-485 Converter
Features : EIA/TIA RS232C standard and RS485 standard This adapter is able to convert an RS-232 signal to an RS-485 balanced differential signal and extend the communication distance up to 0.75 miles. RS-23...
Part No. US-485C | View Details
$19.95
FTDI 6ft. Long USB to Serial Adapter Cable with Screws and Three LED display
Features : FTDI Unique USB to serial adapter cable with screw style db-9 male connector and shielded 6ft. long USB cable that uses the FTDI Chip it also has three color LED display USBG-10ft232-STF is perfe...
Part No. USBG-6ft232-STF | View Details
$21.23
FTDI 10ft. Long USB to Serial Adapter Cable with Screws and Three LED display
Features : FTDI Unique USB to serial adapter cable with screw style db-9 male connector and shielded 10ft. long USB cable that uses the FTDI Chip it also has three color LED display USBG-10ft232-STF is perf...
Part No. USBG-10ft232-STF | View Details
$26.23
SerialGear MicroPLUG(TM) USB RS-232 Serial to USB B Adapter
Features : USB Serial Adapter Plug only 30x32x12mm Install as a standard Windows COM port, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND This USB t...
Part No. USBG-232PLG | View Details
$28.45
USB-8COMi-RM USB to Octal RS-232/422/485 Adapter Metal case with DIN-Rail
Features : This Industrial Grade Rack Mount 8-Port USB Serial Adaptor Metal Case with Built-In 100-240Volt Power Supply uses FTDI chip USB serial Converters part number FT2232C, More information on this Chip at ...
Part No. USB-8COMi-RM | View Details
$289.78
SerialGear MicroPLUG(TM) USB RS-232 Serial to USB MINI-B Adapter
Features : USB Serial Adapter Plug with USB Mini-B only 25x32x12mm Install as a standard Windows COM port, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND...
Part No. USBG-232PLX | View Details
$29.45
4 Port USB to RS-232/422/485 Auto Setup Adapter for Windows Linux and Mac
Features : 4 Port RS232/422/485, software configurable VScom USB-2COM PRO Transfer Speed up to 921.6kbps RS232, up to 3Mbps RS422/RS485 Metal case DIN-Rail mountable RS232/422/485 DB9 male port ...
Part No. USBG-4COM-PRO | View Details
$299.98
PRO USB RS-232 Serial Adapter DB-9 for 7/XP/Vista/Mac/Linux with com port retention
Features : USB to RS232 Professional, this is the Best and most reliable USB to RS232 adapter anywhere backed by a Five Year Warranty from a USB Company that has been selling USB product for over a decade. Ship...
Part No. USB-TO-SERIAL-PRO | View Details
$33.33
USB RS-232 Serial Adapter DB-9 Male works with all Windows and Mac
Features : Best USB Serial Adapter for Steno Machines Supports Windows 7 and Vista (32 and 64-Bit) To use a Steno Machine you will need a serial port for your laptop/desktop computer to connect with your...
Part No. STENO-SERIAL | View Details
$39.45
FTDI Hi-Speed USB to Industrial Single RS-422/485 Adapter
Features : The USB-COMi-TB USB-to-Industrial Single RS-422/485 Adapter is designed to make industrial communication port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB-...
Part No. USB-COMi-TB | View Details
$48.09
USB 2.0 Industrial Adapter User Selectable RS232/422/485 FTDI Chip
Features : USB-COMi+ 1-Port RS-232/422/485 USB-to-Serial Adapter, Easy Mode Setting by Hidden DIP Switch Adds one RS-232, RS-422 or RS-485 serial port by connecting to a USB port One DB9 male connect...
Part No. USB-COMiPLUS | View Details
$48.99
8 Port USB to RS-232/422/485 Auto Setup Adapter for Windows Linux and Mac
Features : 8 Port RS232/422/485, software configurable VScom USB-8COM PRO Transfer Speed up to 921.6kbps RS232, up to 3Mbps RS422/RS485 USB PRO Series Software & Hardware Configurable USB-to-Industrial R...
Part No. USBG-8COM-PRO | View Details
$499.98
USB RS-232 Industrial Adapter Isolated and Surge Protected FTDI Chip
Features : USB Optical isolation & surge protection Adapter RS-232 USB to RS-232 Adapter
  • Provides 1 RS232 Serial Port over USB Port
  • Easy Serial Port Expansion over USB Port
  • USB1.1 and U...
    Part No. USB-COMi+ | View Details
  • $59.78
    USB RS-232 Industrial Adapter Isolated and Surge Protected FTDI Chip
    Features : USB Optical isolation & surge protection Adapter RS-232 USB to RS-232 Adapter
  • Provides 1 RS232 Serial Port over USB Port
  • Easy Serial Port Expansion over USB Port
  • USB1.1 and U...
    Part No. USBG-SSRS1 | View Details
  • $59.78
    15ft. Dual DB-9 USB Serial DB-9 RS-232 Adapter for XP/2000/2003/Vista
    Features :
  • Supports windows 7 (32 and 64-Bit)
  • 15ft. Long Range Active Repeater Cable Dual RS-232 DB-9 Serial Adapter with Prolific Chip. Bus powered for Standard USB To 2 RS-232 Adapter Easy to in...
    Part No. USBG-2XP2 | View Details
  • $59.95
    1-Port USB to RS-232 Selectable RS-422 or RS-485 Industrial Adapter
    Features : 1 Port Metal Industrial USB to RS422/RS485 Serial Adapter w/ Isolation USB to RS-232/422/485 Adapter USB-to-Industrial Adapter
  • - Metal case with DIN-Rail
  • - External DIP switch to...
    Part No. USB-COMi-M | View Details
  • $64.89
    Serial Gear USB BAY-4 Port Serial DB-9 RS-232 Adapter with FTDI Chipset
    Features : USB BAY Docking USBG-BAY4 Serial Adapter Box Supports Windows 7 and Vista (32 and 64-Bit) RS232 Port X 4 feature a rugged metal enclosure! NOW Includes Windows Vista/7 (32 and 64-bit) Drivers! ...
    Part No. USBG-BAY4 | View Details
    $85.12
    USB to RS-232/422/485 Auto Setup Adapter for Windows Linux and Mac
    Features : 1 Port RS232/422/485, software configurable VScom USB-COM PRO Transfer Speed up to 921.6kbps RS232, up to 3Mbps RS422/RS485 Metal case DIN-Rail mountable RS232/422/485 DB9 male port ...
    Part No. USBG-COM-PRO | View Details
    $89.98

    usb serial adapter from $19.95 only at serial adapter source www.USBSERIAL.com