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4-Port DB-9 RS232 to USB Adapter with Isolation and Surge Protection

In Stock & ready to ship.
4-x port RS232 to USB adapter with isolation and surge protection each serial ports offer data transfer rate up to 920 Kbps for high system performance. Users are able to connect multiple serial devices through one USB port on their system.
Part# CM-41042

4-Port 4-Port USB DB-9 Serial Adapter Solution for Windows operating systems

Limited stock, 6 available.
provides instant connectivity with modems, ISDN TAs, PDS, handheld & pocket PCs, digital cameras, POS, serial printers, etc. It is suitable for remote access, retail and industrial applications, data collection and other applications requiring a high speed serial communications port.
Part# USB-4COM

USB-4COMi-SI-M USB to Quad RS-422/485 Metal case with DIN-Rail

In Stock & ready to ship.
Optical isolated Quad RS-422/485 Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB Serial Adapter instantly adds four RS-422, or RS-485 serial communication ports to your system.
Part# USB-4COMi-SI-M

FTDI CHIP USB 2-Port Serial Adapter / USB 2.0 Dual Port Serial DB-9 RS-232

In Stock & ready to ship.
3ft. USB to serial cable version with FTDI Chip supporting Windows 7 and Vista 64-Bit and Vista 32Bit Operating system compatible ships with Microsoft certified drivers. This adapter is the easiest way to add a serial port to your computer.
Part# USBG-2X232P1

4 Port USB to RS-232/422/485 Auto Setup Adapter Windows Linux Mac

Limited stock, 1 available.
4 Port RS232/422/485, software configurable VScom USB-4COM-PRO Transfer Speed up to 921.6kbps RS232, up to 3Mbps RS422/RS485 with Metal case and DIN-Rail mountable.

SerialGear USB to serial 4 Port DB-9 RS-232 Adapter with FTDI Chip

In Stock & ready to ship.
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! Multiple modules can be added to a single USB interface allowing you to add RS232 connectivity as needed.

USB to serial 4-port RS232 FTDI adapter cable

In Stock & ready to ship.
The USB to serial CG-4X232FTDI is a 4 Port RS232 to USB 2.0 serial adapter that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB). Supports USB to RS232 serial applications for Point of Sale, Serial Printers, Scanners and more, works at PC, Thin Client, or Server level operations.
Part# CG-4X232FTDI

USB to RS232 4 Port Profesional Serial Adapter with LED

In Stock & ready to ship.
USB to Serial 4 port adapter Windows 10 supported, this professional 4 port RS232 to USB FTDI chip adapter can easily add 4 standard serial COM ports to your computer system or mobile device.

4-Port DB-9 Male Isolated USB to RS422 RS485 Serial Adapter

Limited stock, please call or email for status.
4-Port RS232 / RS422 / RS485 Isolated Adapter, The CM-422485-i4 Isolated USB to 4-Port serial interface adapter features 2.5kV isolation to ensure 4 serial devices by DB-9 port connected.
Part# CM-422485-i4

USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter

Limited stock, 1 available.
4 optically isolated and surge protected terminal block ports, the USB2-4COMi-TB USB to quad port industrial serial adapter is designed to make RS-422 and RS-485 serial port expansion quick and easy.
Part# USB2-4COMi-TB

4 Port USB to Serial DB9 Industrial RS232 Adapter 15KV ESD and Surge

In Stock & ready to ship.
Rugged 4 port USB to serial RS232 adapter with DB-9 male connecting ports protected with 15KV ESD and 600W surge protection across all ports. With both bracket and DIN Rail mounting options, hub placement is versatile.
Part# GM-U24RS232