4-Port USB to RS232 Adapter FTDI Cable - Coolgear
Tripp Lite Keyspan High Speed 4 Port USB to DB9 Serial Adapter Hub - serial adapter - USB - RS-232 x 4 - USA-49WG - USB Adapters - CDW.com
USB 4-Port Serial Adapter - USB 2.0 to DB-9 Port RS232 with FTDI CHIP - Coolgear
Delock Products 87414 Delock USB 2.0 to 4 x serial adapter
4 Port Professional RS-232 USB 2.0 to Serial Adapter
4 Port USB To Serial Adapter with RX/TX Indicators
4-Port USB to RS-232 Serial Adapter Hub
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2324I) : Electronics
4 Port USB Type A Male to Serial Adapter Hub
StarTech.com USB to Serial Adapter Hub 4 Port Industrial Wall Mount Din Rail COM Port Retention FTDI USB Serial - Office Depot
4 Port Serial Hub USB to RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
FTDI CHIP 4 Port USB to Serial RS232 DB9 Adapter Cable | eBay
USB to 4-Port RS-232 RJ45 Serial Interface, Bus-Powered - Sealevel
USB to 4-Port RS-232 DB9 Serial Interface Adapter - Sealevel
Amazon.com: Gearmo 4 Port USB to Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac w/ESD and Surge Protection : Electronics
Customized USB 2.0 To 4 Port RS232 Serial Adapter Cable Suppliers & Manufacturers & Factory - STARTE
Shop | StarTech.com 4 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
Four-port USB to serial RS232 converter / adapter
4-Port USB to RS-232 Hub - UC2324, ATEN Converters | ATEN U.S.A.
4-port USB 2.0 to 4X RS232 serial cable splitter converter ZE552A(FTDI Chipset+win 10 supported) - AliExpress
UC2324 - 4-Port USB-to -Serial RS-232 Hub
4-Port RS-232 USB to Serial Adapter Data Control Box - Coolgear
4 Port Serial Hub USB to RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
4-Port USB to Serial RS232 Hub | TRENDnet - TRENDnet TU-S4
