UC2324 - 4-Port USB-to -Serial RS-232 Hub
USB 4-Port Serial Adapter - USB 2.0 to DB-9 Port RS232 with FTDI CHIP - Coolgear
Keyspan USB 4-Port Serial Adapter - serial adapter - 4 ports - USA-49WG
4-Port USB to RS-232 Serial Adapter Hub
4 Port Professional RS-232 USB 2.0 to Serial Adapter
Four-port USB to serial RS232 converter / adapter
4-port Usb 2.0 To 4x Rs232 Serial Cable Splitter Converter Ze552a(ftdi Chipset+win 10 Supported) - Pc Hardware Cables & Adapters - AliExpress
4-Port USB to RS-232 Serial Adapter Hub
USB to 4-Port RS-232 DB9 Serial Interface Adapter - Sealevel
Q Core Medical Sapphire USB to 4-Port RS232 Adapter | Bound Tree
4 Port Serial Hub USB to RS232 Adapter - Serial Cards & Adapters | StarTech.com Italy
4 Port Serial - USB Cable - Get Console Shop
4 Port USB to DB9 RS232 Serial Adapter - Serial Cards & Adapters | StarTech.com
4-Port USB-A to Serial DB9 Adapter, Keyspan | Eaton
Keyspan USB 4-Port Serial Adapter - Midwest MicroSystems LLC
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
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
StarTech.com USB to RS232/RS485/RS422 4 Port Serial Hub Adapter - Indu – Natix
StarTech.com USB to RS232/RS485/RS422 Industrial 4 Port Serial Hub Adapter - USB to Serial Converter - ICUSB234854I - USB Adapters - CDW.com
Keyspan USB 4-Port Serial Adapter USA-49WG B&H Photo Video
Large Selection of USB-RS232 adapters, Easy Installation and Setup of USB RS232 COM ports.
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 DB-9 Serial Adapter Solution for Windows Operating Systems
USB 4-Port Serial Adapter / USB 2.0 Quad Port Serial DB-9 RS-232
