RS232 adapter  (724 offers of 5,353,056 product items)

The USB 1.1 to Serial RS-232 box provides two high performance 16C550-type UART compatible RS-232 serial ports. It is designed for PC, thin client or server to provide instant COM port expansion in...

The ICUSB2322F 2-Port USB to Serial RS232 Adapter Cable with FTDI chipset and COM Retention converts an available USB 1.1 or 2.0 port into 2 RS232 serial DB9 ports to connect, monitor and control y...

The ICUSB2321X Professional grade USB Serial Adapter cable converts a USB 2.0 port into an RS232 serial port allowing you to connect to, monitor and control your serial devices. A durable, single c...

The USB 1.1 to Serial RS-232 box provides four high performance 16C550-type UART compatible RS-232 serial ports. It is designed for PC, thin client or server to provide instant COM port expansion i...

The EX-1334IS USB 1.1 to Serial RS-232 metal box provides four high performance 16C550-type UART compatible RS-232 serial ports with 15KV Surge Protection and 2.5KV Optical Isolation. It is designe...

Add 4 DIN Rail-mountable RS232 Serial ports to any system through USB The ICUSB2324I 4-Port Industrial USB to Serial Hub with DIN Rail Clips converts a single USB port into four RS232 serial ports,...

Expand your PC with two serial ports - Supports: Windows 95 / 98SE / NT 4.0 / ME / 2000 / XP - Contents: I/O Card, Driver CD, Manual

The ICUSB2328I Industrial 8-Port USB to Serial Hub with DIN Rail Clips converts a single USB port into eight RS232 serial ports, enabling you to connect to, monitor and control your serial devices....

The ICUSB232DB25 USB to RS232 DB9/DB25 Serial Adapter Cable (M/M) lets you connect 9-pin (DB9) or 25-pin (DB25) RS232 serial devices to your laptop or desktop computer through a USB port, as though...

Add 2 high-speed RS-232 serial ports to your PC through a PCI expansion slot The PCI2S550 2 Port 16550 Serial Card can be installed in an available PCI slot to add two RS232 serial ports to your sy...

The ICUSB232SM3 3ft USB to Serial Adapter Cable lets you connect DB9 RS232 serial devices to your Mac® or PC laptop or desktop computer through an available USB port, as though the computer offered...

Add 4 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets y...

Control and communicate with two serial devices even with mixed RS-232 & 485 protocols The PCI2S232485I PCI Serial Adapter Card lets you turn a PCI or PCI-X slot into 2 serial ports capable of comm...

The ICUSB2324852 2 Port USB to RS232 RS422 RS485 Serial Adapter with COM Retention lets you connect every type of serial device to your USB-enabled computer, whether it be for RS232, RS422, or RS48...

Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slotThe PEX2S553 PCI Express serial card lets you turn a PCI Express slot into 2 RS232 (DB9)...