USB 4-Port Serial Adapter - USB 2.0 to DB-9 Port RS232 with FTDI CHIP - Coolgear
FTDI Serial USB RS232 Adapter 4 port Din Rail Industrial - Shentek
4-Port USB to RS-232 Hub - UC2324, ATEN Converters | ATEN Corporate Headquarters
4 Port USB to RS232 Serial Adapter Hub - Serial Cards & Adapters | StarTech.com Canada
4-port Usb 2.0 To 4x Rs232 Serial Cable Splitter Converter Ze552a(ftdi Chipset+win 10 Supported) - Pc Hardware Cables & Adapters - AliExpress
Large Selection of USB-RS232 adapters, Easy Installation and Setup of USB RS232 COM ports.
4-Port USB-A to Serial DB9 Adapter, Keyspan | Eaton
Four-port USB to serial RS232 converter / adapter
ATEN UC2324 4-Port USB-to -Serial RS-232 Hub | IT Infrastructure Experts!
StarTech 4-Port USB to Serial Adapter Hub with COM ICUSB2324X
UGREEN USB-A 2.0 To 4 Serial DB9 RS-232 Male Adapter Cable - UGREEN Indonesia Official
USB to RS232 4-port cable - Cablematic
4-Port RS-422 / 485 USB to Serial Adapter - Coolgear
4-Port USB to RS-232 Serial Adapter Hub
4 Port USB to Serial Adapter - USB-B to DB9 RS485 RS422 | Eaton
4-Port USB to RS-232 Serial Adapter Hub
Rugged USB to 4-Port RS-232, RS-422, RS-485 Software Configurable Serial Interface Adapter - Sealevel
Amazon.com: TECHTOO 4 Port Professional FTDI CHIP USB to Serial RS232 DB9 Adapter Converter Serial Cable 9-Pin Male to Male with Thumbscrews (W/Thumbscrews, 4 RS232 Port) : Electronics
4-Port Industrial USB to RS-232 Serial Adapter Cable
4-Port USB to RS-232 Hub - UC2324, ATEN Converters | ATEN Corporate Headquarters
4 Port USB Type-C To Serial Adapter with Per port LED Rx / TX
4 Port USB 2.0 to Serial Adapter Hub - Serial Cards & Adapters | StarTech.com
USB to 4-Port RS-232 DB9 Serial Interface Adapter - Sealevel
4-Port USB to RS-232 Hub - UC2324, ATEN Converters | ATEN Corporate Headquarters
