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

USB 2.0 Industrial Adapter User Selectable RS232/422/485 FTDI Chip

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

USB to RS232 Adapter – 2500Vrms Isolation Industrial 8-Port DB-9 RS232 to USB Adapter to add eight new or additional serial devices to your system. Features isolation and surge protection for your serial applications.With the USB Plug-and-Play feature, simply plug in, follow the instructions of Install Wizard, then you are done. You don’t have to deal with Card Slots, I/O address, IRQ jumpers, DMA and others when you are connecting the devices.

Coolgear Industrial 8-Port DB-9 RS232 to USB Adapter with Isolation and Surge Protection

Add eight RS-232 DB9 serial ports to your desktop computer through a PCIe expansion card slots. This PCI express serial card with 8-port breakout cable provides you with multiple ports to connect a wide variety of serial peripherals at speeds of up to 921.4Kbps. The PCI express serial port card makes it easy to add serial ports to connect your peripherals including printers scanners credit/debit card readers PIN pads and modems industrial controls and more.

StarTech.com PEX8S1050 8 Port PCI Express RS232 Serial Adapter Card

FTDI USB to Serial Adapter Cable w/ COM - Serial Cards & Adapters, Add-on Cards & Peripherals

SerialGear Two Port RS-232 ExpressCard DB-9 Dongle for New Laptops

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 ICUSB2328 8 Port USB to Serial RS232 DB9 Adapter Hub lets you connect up to eight RS232 serial devices to your Mac or PC, laptop or desktop

8 Port USB to RS232 Serial DB9 Adapter Hub

StarTech.com 8-Port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Card - 16C1050 UART - Multiport Serial DB9 Controller/Expansion Card - 15kV ESD Protection - Windows & Linux (PEX8S1050) : Electronics

Dual Port USB 2.0 to RS-232 DB-9 Serial Adapter w/ FTDI Chip - Coolgear