USB to RS232 DB9/DB25 Serial Adapter - Serial Cards & Adapters | StarTech.com
USB to RS232 Converter - 6ft - CAB-11304 - SparkFun Electronics
Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length,
Industrial RS232/RS485 to Ethernet Converter, EU head
RS232 to USB converter - Victron Energy
Serial Ethernet Converter (RS232, RS485, RS422) - U.S. Converters LLC
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Chipset) – Plugable Technologies
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Eaton Tripp Lite
USB Serial Adapter – Windows 10 Compatible High-Speed RS232 adapter
UART to RS232 Converter | Atlas Scientific
Serial RS232 / RS422 / RS485 to WiFi Converter sWiFi DB9 to WiFi – Envistia Mall
RS232 to RS422 Converter, Large Selection of Reliable RS422 Converters
Mettler Toledo RS232 to USB Converter Cable for XPR Microbalances and Ultra-Microbalances | Fisher Scientific
USB to 9 Pin RS232 Converter | Makerfabs Electronics
RS-232 to RS-485 Converter, 3kV Isolation
Amazon.com: StarTech.com 1 Port RS232 to Ethernet IP Converter / Device Server - Aluminum - Serial over IP Device Server - Serial to IP Converter (NETRS2321P) : Electronics
Amazon.com: Serial to Ethernet Converter Adapter RS232 RS485 to TCP/IP Serial Device Server Modbus Support DHCP/DNS USR-TCP232-410S : Electronics