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USB to RS232 / RS422 / RS485 Adapters

SerialComm offers high quality certified FDTI USB to RS232 converter, USB to RS485 converter and USB to RS422 products with free shipping or same day express from $19.95. Our USB to serial converter products can be used for any application whether it is for commercial or, industriall. If you need protection, reliability, and power efficiency at low prices we have the solution and we back our products with a 30 day risk-free money back guarantee and 5 year replacement warranty. Our USB adapters come in a number of options including commercial, industrial, or isolated and are industry proven to reliably work with most Windows and Mac operating systems. SerialComm is committed to providing the best customer support possible with 24 hour telephone, live chat and email support.

  • USB to RS232 Converter

    Model: USB-232-2   -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $19.95

    Data Sheet PDF

    The USB-232-2 is a high quality professional port-powered bi-directional USB to RS232 converter with 15KV ESD and 600W surge protection in a 9 pin format. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 0 to 115.2K baud. MTBF: 427,056 Hours

  • Industrial USB to 4-Port RS232 Converter

    Model: USB-4232  -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $79.95

    Data Sheet PDF

    The USB-4232 is an industrial-grade high quality professional port-powered bi-directional USB to 4 port RS232 converter with 15KV ESD and 600W surge protection in a 9 pin format. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 0 to 115.2K baud. MTBF: 879,337 Hours

  • USB to RS485 Converter with Optional Termination

    Model: USB-485B -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $29.95

    Data Sheet PDF

    The USB-485B is a high quality professional port-powered bi-directional USB to RS485 converter with 15KV ESD and 600W surge protection in a 9 pin format. This converter features optional built-in 120 Ohm termination. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 0 to 1mps. MTBF: 409,940 Hours

  • USB to RS485 / RS422 Converter with Optional Termination

    Model: USB-485C -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $34.95

    Data Sheet PDF

    The USB-485C is a high quality professional port-powered bi-directional USB to RS485 or RS422 converter with 15KV ESD and 600W surge protection in a 9 pin format. This converter features optional built-in 120 Ohm termination. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 0 to 1mps. MTBF: 421,972 Hours

  • Industrial Isolated USB to RS485 / RS422 Converter

    Model: USB-ISO-485 - FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $59.95

    Data Sheet PDF

    The USB-ISO-485 is an industrial-grade 2500V opto-isolated port-powered bi-directional USB to RS485 or RS422 converter with 15KV ESD and 600W surge protection in a 9 pin or RJ45 format. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 300 to 128K baud. MTBF: 306,000 Hours

  • Industrial USB to 4-Port RS485 / RS422 Converter

    Model: USB-4485 -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $95.95

    Data Sheet PDF

    The USB-4485 is an industrial-grade high quality professional port-powered bi-directional USB to 4 port RS485 or RS422 converter with 15KV ESD and 600W surge protection in a 9 pin format. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 0 to 230.4K baud. MTBF: 885,034 Hours

  • USB to 3.3V TTL Converter

    Model: USB-TTL-33 -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $36.95

    Data Sheet PDF

    The USB-TTL-33 is a high quality professional port-powered bi-directional USB to 3.3 volt converter with 15KV ESD and 600W surge protection in a 9 pin format. It is a combination of the USB-232-2 and TTL-232-33P Converters. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to newo computers a breeze. Operates reliably from 0 to 115.2K baud. MTBF: 427,056 Hours

  • USB to 5V TTL Converter

    Model: USB-TTL-5 -  FTDI Supports: WIN 98 to WIN 11; WIN SERVER 2003 to 2022; MAC 10.3 to 10.15; LINUX Price: $36.95

    Data Sheet PDF

    The USB-TTL-5 is a high quality professional port-powered bi-directional USB to 5 volt converter with 15KV ESD and 600W surge protection in a 9 pin format. It is a combination of the USB-232-2 and TTL-232-5P Converters. Since it is port-powered, no external power is needed. The USB converter utilizes the latest FTDI chipset drivers making upgrading to new computers a breeze. Operates reliably from 0 to 115.2K baud. MTBF: 427,056 Hours

TUV Rheinland Certification

Our ISO-9001:2015 Quality Management System with a scope of "Design, Sales and Distribution of Data Communication Products and IT Support Services" was certified by world-class TÜV Rheinland of North America.

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