4-Port USB to RS-232 DB9 Serial Adapter w/ Prolific Chipset
4-port USB to Serial RS232 Converter
StarTech.com USB to RS232/RS485/RS422 Industrial 4 Port Serial Hub Adapter - USB to Serial Converter - ICUSB234854I - USB Adapters - CDW.com
3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
StarTech.com 4 Port USB to Serial RS232 Adapter Hub – Wall Mountable - ICUSB2324I - Serial Adapters - CDW.com
USB to 4 PIN SERIAL RS232 PORT FTDI Chipset Adapter
![CTF4XRS232USB (Automotive/Industry 4-port RS232 USB adapter, FT4232HL, 9-48VDC) [ USB-Hub ]](https://www.cartft.com/image_db/CTF4XRS232USB.jpg "CTF4XRS232USB (Automotive/Industry 4-port RS232 USB adapter, FT4232HL, 9-48VDC) [ USB-Hub ]")
CTF4XRS232USB (Automotive/Industry 4-port RS232 USB adapter, FT4232HL, 9-48VDC) [ USB-Hub ]
4-Port USB to RS232 Adapter FTDI Cable - Coolgear
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics
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
StarTech.com USB to Serial Adapter Hub - 4 Port - Bus Powered - DB9 (9-pin) - USB Serial - FTDI USB to Serial Adapter - Add four RS232 serial ports to any
4-Port USB to RS232 Adapter FTDI Cable - Coolgear
4-Port USB to RS-232 Serial Adapter Hub
Large Selection of USB-RS232 adapters, Easy Installation and Setup of USB RS232 COM ports.
Q Core Medical Sapphire USB to 4-Port RS232 Adapter | Bound Tree
4 Port USB 2.0 to Serial Adapter Hub - Serial Cards & Adapters | StarTech.com
FTDI Serial USB RS232 Adapter 4 port Din Rail Industrial - Shentek
4-Port USB to RS-232 Hub - UC2324, ATEN Converters | ATEN U.S.A.
4 Port Professional RS-232 USB 2.0 to Serial Adapter
USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi : ID 954 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
FTDI Serial USB RS232 Adapter 4 port Din Rail Industrial - Shentek
