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This 4 Port USB to RS232 Serial Hub lets you connect up to four RS232 serial devices to your Mac or PC laptop or desktop computer through a single USB port, as though the computer offered built-on DB9M serial connectors.
The RS232 Serial Hub is compactly designed to preserve valuable workspace, and is bus-powered to eliminate the need for an external power adapter.
A cost-effective solution that bridges the compatibility gap between modern USB-capable computers and legacy RS232 serial peripherals, this dependable USB/RS232 Serial Adapter hub is backed by StarTech.com's Lifetime Warranty.
Alejandra Gutiérrez Fernández
Reviewed in Mexico on November 6, 2021
Producto de buena calidad
Atir G Mir
Reviewed in Canada on October 31, 2020
com port numbers remains the same, helps to keep the settings permanent in terminal!
Kyle C.
Reviewed in Canada on December 18, 2019
As expected. No issues in Windows 10
voyager36
Reviewed in Canada on November 13, 2018
Needed this for old amateur radio serial connections to a newer windows 10 pc - works great. Arrived as promised. Simple and efficient.
Chris Paynter
Reviewed in Canada on February 5, 2016
Awesome device, I have 3 of these in various offices, and they all are bulletproof. Never have to power cycle them like some USB-serial converters I have used.
James Pennington
Reviewed in the United States on February 5, 2015
It would not install. The first attempt it said I was missing a .DLL file. I downloaded the .DLL file then it said it could not find aomething in the .DLL file. The SioKeyCode could not be located in the Dynamic link Libaray WSC32.DLL
Ken M
Reviewed in the United States on March 2, 2013
I am writing some automated test software for a device that communicates through 4 RS-232 ports. This Star Tech adapter is perfect for my testing. I use it regularly on two 64 bit Windows 7 machines and one Apple Mac running 32 bit Windows 7, on Boot Camp. The only strange behavior, is that, on all 3 machines, the ports did not install in the order they are numbered on the back of the adapter. They are numbered 1,2,3,4 but in my case they installed as 1,2,4,3. So, on the computers, port 3 was mapped to the port labeled as 4 on the device. I spent a few hours one night figuring that one out. You are able to reassign the port numbers and the assignments are retained by the operating system.All in all, this device is well worth the money ;)
tmok2000
Reviewed in the United States on May 17, 2012
My new PC motherboard (Asus Rampage IV Extreme) no longer has any serial port. However, there are still a few things in the house that require the occasional use of a serial connection. I primarily use it to connect to a Simply Automated UPB PIM (Universal Power-line Bus Plug-in Interface Module) and run the Upstart software to configure the home UPB network. I also use it to program a URC Remote Control. I guess I could have gotten away with a dual port adapter, but the price difference is not that much. My PC runs Windows 7 64-bit. On this OS, I didn't need to install any driver myself. As soon as I plugged in the unit to my PC, Windows automatically searched the Internet, downloaded, and installed the required FTDI driver. Device Management shows the 4 new serial ports. On my machines, they are assigned Ports #6, 7, 8, and 9. They correspond one-to-one to the physical ports on the unit. Unplugging and replugging the unit didn't change the sequence, so this unit must have COM retention capability. All-in-all, I am quite pleased with it.
Jerry Johnson
Reviewed in the United States on January 22, 2010
For those looking for serial ports for 64bit Windows 7. This works perfect.Used the drivers from their web site. Detected the unit fine. Up and running in 5minutes.I use many serial ports for Ham Radio equipment in Windows 7. Most of my USB to serial adapters don't have updated drivers for Windows 7. This solved the issue nicely.The unit is silver, not black and is a plastic case. Comes with a wall mount bracket. Easy to mount.Hope this helps others that need USB to serial adapters in Windows 7, 64bit.
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