RS232 adapters  (1,408 offers of 2,631,028 product items)

PCI Express to Serial Adapter | 921.4Kbps | Windows® and Linux® Compatible This RS232 Serial Adapter Card lets you add two RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slo...

Universal PCI card provides 1 industry standard 9 pin RS232 serialCOM ports in a single PCI slot. Low Profile is the industry standard small form factor design for PCI. Universal PCI is fully compa...

Add two RS232 serial ports to any system with an available USB motherboard header The ICUSB232INT2 USB to Serial Adapter lets you add 2 RS232 ports to any desktop system that is equipped with an av...

Connect an RS232 (DB9) peripheral to your USB-C device This USB-C™ to serial adapter lets you connect your USB-C devices to your legacy serial equipment. It converts a USB-C port on your laptop or ...

Add an RS232 serial port to any system with an available USB motherboard header The ICUSB232INT1 USB to RS232 Serial Adapter lets you add an RS232 port to any desktop system that is equipped with a...

Universal PCI card providing 2 industry standard 9 pin COM ports, 1 RS422/485 and 1 RS232, in a single PCI slot. On board Zener diodes ensure electrical protection. Velocity megabaud data transfer ...

Add an RS232 serial port to a notebook or desktop computer with this Plug-and Play USB adapter cable The ICUSB232DB25 USB to RS232 DB9/DB25 Serial Adapter Cable (M/M) lets you connect 9-pin (DB9) o...

Add a serial port with this USB C to serial with COM port retention This USB-C™ to serial adapter lets you connect your USB-C devices to your legacy serial equipment. It converts a USB-C port on yo...

Add four ports supporting three serial protocols, to easily connect serial devices to your computer through USB, with 15kV ESD protection Add four extra COM ports to your laptop or desktop computer...

This handy adapter establishes communication between a Motorola MC9000 series Mobile Computer and a host PC system or printer.

PCI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® Compatible This PCI Express RS232 serial adapter card lets you add four RS232 (DB9) serial ports to your computer through a PCI Expre...

Add eight RS-232 capable DB9 Serial Ports to a desktop computer via PCIe x1 Expansion Card - Low Profile Serial Card (Full Profile Brackets Incl.) Add eight RS-232 DB9 serial ports to your desktop ...

Convert an RS232 data signal to either RS485 or RS422 with this wall-mountable, ESD-protected adapter The IC232485S Industrial RS232 to RS-422/485 Serial Converter is a bi-directional adapter that ...

The PowerWalker Modbus Card is a communication accessory that provides a pair of RJ-45 interface for remote monitoring and controlling of UPSs. It allows controlling many UPSs from one computer. Yo...

PCI | RS-232 Serial | IEEE 1284 Parallel | Lifetime Warranty This PCI 1x Parallel and 2x Serial Combo Card installs into a single PCI slot in your computer (occupying 2 to 3 expansion slots, depend...