StarTech.com 8 Port USB to Serial RS232 Adapter Introduction
StarTech.com 8 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2328I)
Same as this unit: https://www.digikey.ca/en/products/detail/startech-com/ICUSB2328I/21397171?s=N4IgTCBcDaIJIGECqBlAQmAzGAHHEAugL5A
Used until recently. Switches no longer need RS232. In perfect condition.
Includes original USB cable plus additional miscellaneous serial cables.