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USB 2.0 4-Port USB Serial DB-9 RS-232 Adapter - FTDI Chipset


Quick Overview

The USB2-4COM-M USB Quad Port RS-232 Serial Adapter is designed to make serial port expansion quick and simple. USB Quad Serial Adapter instantly adds four RS-232 serial communication ports to your system.

Availability: In stock



Manufacturer: CoolGear


USB2.0 4-Port USB Serial DB-9 RS-232 Adapter with FTDI Chipset is a Professional Grade Solution for Legacy or Industrial serial RS-232 device connectivity to a Laptop or Desktop Computer. This Adapter Retains all COM port settings assigned by the operating system and or modified by user. this is very convenient if the adapter is disconnected and reconnected at a later time to another USB port on the same computer.

By taking advantage of the computer's USB bus, the USB2.0 4-Port DB-9 Serial RS-232 Adapter makes it easier than ever to add multiple RS-232 serial ports and serial devices to your system. With easy plug-and-play and hot plug features, plugging the USB Quad Port Serial Adapter into the USB port allows the adapter to be automatically detected and installed. There are no IRQ & COM port conflicts, since the ports do not require any additional IRQ, DMA, memory as resources on the system there is no configuration on your part. The USB 2.0 Quad Port Serial Adapter is bus-powered, and it works with the USB host port supplying power of 500mA.

The USB2.0 Quad RS-232 Serial Adapter provides instant connectivity with modems, ISDN TAs, PDAs, serial printers and other serial devices. It is suitable for remote access, retail and industrial applications, data collection and other applications requiring high speed RS-232 serial communication ports.


Additional Features:

  • Installed as standard Windows COM port
  • SECC metal chassis with DIN rail bracket
  • Full RS-232 modem control signals and hardware/software flow control
  • RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • High speed serial port with the baud rate up to 921.6K bps
  • 128 byte transmit FIFO & 384 byte receive FIFO
  • Non-standard baudrates supported
  • LEDs of Power, TxD and RxD for easy port monitoring and diagnostics
  • Serial port protected with surge protection of 10KV
  • Powered by USB port, no external power adapter required
  • Easy plug and play installation and RS-232 device connection
  • COM port number assigned can be changed to any COM port number required
  • Compatible with USB 1.1 & 2.0 host port

OS Support:


Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, and Windows 8
Linux and Mac OS 10.X

Additional Information

UPC 729440690762
Manufacturer CoolGear
Color Beige
Connectors DB-9, USB B Female
Material Metal
Serial Chip FTDI
DB9 Gender Male w/ Hex Nuts
Warranty One Year