TECHTOO TECHTOO 4 Port Professional FTDI CHIP USB to Serial RS232 DB9 Adapter Converter Serial Cable 9-Pin Male to Male with Thumbscrews

I needed to have remote access to few network devices for remote staging and configuration and plugged into a compact PC running a remote access software on it, I now have access to 4 of routers and switches that I needed to configure. I am sure if you have more than 4 devices to handle, multiple of this product can be plugged into USB ports and it then replaces a terminal server. I really like this and will probably order another one.

Worked well

Purchased for my tech department employees to use with laptops. Works perfectly on Windows 10 and 7 also seems to work fine with CentOS and Redhat Linux. We work on a lot of EMC, NetApp, Cisco...equipment testing using serial ports and this is great and easy to stick in a laptop case. They can more easily multitask by running multiple serial connections to multiple systems using Putty or Hyperterminal, etc. I advise you determine what comport each serial connection "head" is assigned in device manager because it gets confusing. We mark each serial head with a number that corresponds to the com port assigned by OS. Once you install the drivers each "head" is assigned a comport that does not change.

I plugged the device into the raspberry pi's usb port , searched /var/log/messages for the new interfaces and then connected to them using minicom (Terminal emulator)Recommended product works with Raspberian on a Pi nicely as a agret 4 port terminal server!

Very stable, was able to console into a switch, firewall and two controllers at the same time, very useful!