8 Port Serial Hub USB to RS232 Adapter - Serial Cards & Adapters, Add-on Cards & Peripherals

Add an RS422/485 serial port to your system through USB; features COM port retention. The ICUSB422 6ft Professional RS422/485 USB Serial Cable Adapter with COM Port Retention lets you connect RS422 or RS485 serial devices to your USB-enabled computer. The adapter features a 9-pin (DB9) male serial connector as well as dipswitch controls for easy port configuration, and requires minimal software.

6' Professional Rs422/485 USB Serial Cable Adapter with COM Retention, Size: 6 feet, Black

This PCI Express serial card adds 16 high-speed RS232 ports to your standard or low-profile desktop or server PC. This lets you maximize the number of available DB9 RS232 ports that are available for connecting your serial-based devices and equipment, while using only a single PCI Express (PCIe) slot. It's the perfect solution for adding the serial ports you need, even if your desktop PC or server only has a limited number of PCIe expansion slots.

StarTech.com 16-Port Low-Profile Serial Card - RS232 - PCI Express PEX16S550LP

This USB 2.0 RS-232 Serial Adapter is the easiest way to add a serial port to your computer. Newer computers today are unequipped to support peripherals requiring a serial RS-232 connection because they lack serial ports; this affects PDA, digital camera, and GPS type equipment that may be used on your system. This adapter also allows you to add a serial port and monitor the status of your connections by using LED activity flashes.

Gearmo USB RS-232 Serial Adapter with LED Indicators Windows 10 8 7

The ICUSB2324I 4-Port Industrial USB to Serial Hub with DIN Rail Clips converts a single USB port into four RS232 serial ports, enabling you to

4 Port USB to DB9 RS232 Serial Adapter Hub – Industrial DIN Rail and Wall Mountable

Add extra COM ports to your laptop or desktop computer, quickly and easily. This USB to RS232/422/485 serial adapter lets you connect to your serial

8 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub

The ICUSB2324X 4 Port Professional Grade USB Serial Adapter converts a single USB port to four RS232 serial ports allowing you to connect to, monitor

4 Port Wall Mountable USB to Serial Adapter Hub with COM Retention

StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics

SerialGear 8-Port RS-232 USB to Serial Adapter Data Control Box

USB to RS-422/485 Adapter with Optical isolation with 2000 volts DC & surge protection. Built-n ESD protection up to 25KV.

Coolgear USB-to-Optical Isolated RS-422/485 Industrial Adapter