4 Port Professional RS-232 USB 2.0 to Serial Adapter
StarTech.com ICUSB2324 USB to Serial Adapter Hub - 4 Port - Bus Powered - DB9 (9-pin) - USB Serial - FTDI USB to Serial Adapter - Newegg.com
USB to RS-232 DB9 1-Port Serial Interface Adapter - Sealevel
2-Port USB to RS-232 Hub - UC2322, ATEN USB Converters | ATEN U.S.A.
16 Port RS-232 Rack Mountable USB to Serial Adapter - Coolgear
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Tripp Lite
Startech.com Usb To Serial Adapter - Prolific Pl-2303 - Com Port Retention - Usb To Rs232 Adapter Cable - Usb Serial - Db-9 Male : Target
Shop | StarTech.com USB to Serial Hub - 16 Port - COM Port Retention - Rack Mount and Daisy Chainable - FTDI USB to RS232 Hub (ICUSB23216FD) - serial adapter - USB 2.0 - RS-232 x 16
Sabrent USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter 1 ft Cable (CB-RS232) | CB-RS232
Startech 3' USB to RS232 DB9/DB25 Serial Adapter Cable - Walmart.com
2 Port USB 2.0 to Serial Adapter Hub - Serial Cards & Adapters
StarTech.com ICUSB23216FD USB to Serial Hub - 16 Port - COM Port Retention - Rack Mount and Daisy Chainable - FTDI USB to RS232 Hub - Newegg.com
Ugreen USB to RS232 COM Port Serial PDA 9 DB9 Pin Cable Adapter Prolific pl2303 for Windows 7 8.1 XP Vista Mac OS USB RS232 COM|usb com rs232|usb rs232usb to rs232 - AliExpress
4 Port USB to DB9 RS232 Serial Adapter - Serial Cards & Adapters
4-Port USB to RS-232 DB9 Serial Adapter w/ Prolific Chipset
USB to RS232 Converter Cable 1.0 meter - UMC-201
8-Port USB to RS-232 Serial Adapter Hub
4-Port USB to RS-232 Serial Adapter Hub
2-Port USB to RS-232 Hub - UC2322, ATEN USB Converters | ATEN U.S.A.
8-Port USB to RS-232 Serial Adapter Hub
Shop | StarTech.com 8 Port Serial Hub USB to RS232/RS485/RS422 Adapter, Industrial USB 2.0 to DB9 Serial Converter Hub, IP30 Rated, Din Rail Mountable Metal Serial Hub, 15kV ESD Protection - 6ft
StarTech.com ICUSB2324X USB to Serial Adapter Hub - 4 Port - Wall Mount - COM Port Retention - Texas Instruments - USB to RS232 Adapter - Newegg.com
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable Black NS-PU99501 - Best Buy
Black Box 8-Port USB to RS232 Serial Adapter / Converter, 8 x DB9 Male - IC1023A - -
