ATEN USB to Serial RS-232 Converter, Model UC-232A, with Software Disc& Manual | eBay
ATEN USB to RS232 Serial Adapter PN UC-232A | Computer Alliance
UC232A | Aten USB to serial RS232 converter | Distrelec Germany
Aten Uc232a Usb To Rs232 Db 9 Pin Pda Serial Db9 Port Adapter Pc Mac Drivers Usb-a Type Convert Rs-232 Serial Interface - Pc Hardware Cables & Adapters - AliExpress