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USB Serial Adapters



Product Image Model+ Item Name Price
USB to Single RS232 Converter USB-232-1

USB to Single RS232 Converter

The USB-232-1 is a port-powered, bi-directional USB to RS232 adapter / converter that can be used to convert any standard USB port (USB 2.0 - backward compatible) into a RS232C port and vice versa....

$24.95

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USB to RS422 Converter USB-232-1 + CVT-485_422-1

USB to RS422 Converter

Combining the USB-232-1 (USB to Single RS232 Adapter) and CVT-485_422-1 (Port-powered RS232 to RS422/485 converter) allows you to turn your USB port into an RS422 port that can be used to communicate...

$75.95

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USB to TTL Converter USB-232-1 + TTL-232-1

USB to TTL Converter

Combining the USB-232-1 (USB to Single RS232 Adapter) and TTL-232-1 (Port-powered RS232/TTL converter) allows you to convert USB to 5VDC TTL/CMOS compatible levels and vice versa. The unit uses the...

$62.95

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USB to TTL3.3V Converter USB-232-1 + TTL33-232-1

USB to TTL3.3V Converter

Combining the USB-232-1 (USB to Single RS232 Adapter) and TTL33-232-1 (Port-powered RS232/TTL 3.3V converter) allows you to convert USB to 3.3V TTL/CMOS compatible levels and vice versa. The unit...

$62.95

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Credit card, Paypal and Money Order accepted!

USB to Dual RS232 Converter USB-232A-1

USB to Dual RS232 Converter

The USB-232A-1 is a port-powered, bi-directional USB to RS232 adapter / converter that can be used to convert any standard USB port (USB 2.0 - backward compatible) into two RS232C ports and vice...

$39.95

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USB to Dual RS485 Converter USB-232A-1 + 2x CVT-485-1

USB to Dual RS485 Converter

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of CVT-485-1 (Port-powered RS232/RS485 converter) allows you to turn your USB port into two RS485 ports, which can be used to...

$105.95

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USB to Dual RS422/485 Converter USB-232A-1 + 2x CVT-485_422-1

USB to Dual RS422/485 Converter

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of CVT-485_422-1 (Port-powered RS232 to RS422/485 converter) allows you to turn your USB port into two RS422 ports, which can be...

$131.95

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Credit card, Paypal and Money Order accepted!

USB to Dual TTL Converter USB-232A-1 + 2x TTL-232-1

USB to Dual TTL Converter

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of TTL-232-1 (Port-powered RS232/TTL converter) allows you to convert USB to two channels of 5VDC TTL/CMOS compatible levels and...

$105.95

In Stock!
Credit card, Paypal and Money Order accepted!

USB to Dual TTL3.3V Converter USB-232A-1 + 2x TTL33-232-1

USB to Dual TTL3.3V Converter

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of TTL33-232-1 (Port-powered RS232/TTL 3.3V converter) allows you to convert USB to two channels of 3.3V TTL/CMOS compatible levels...

$105.95

In Stock!
Credit card, Paypal and Money Order accepted!

USB to RS232 Hub (4-Port / Industrial) USB-232H-3

USB to RS232 Hub (4-Port / Industrial)

The Commfront USB-232H-3 is a rugged, industrial-grade USB 2.0 to 4-port RS232 hub that can be used to expand one USB 2.0 port into four RS-232 ports. This USB to 4-port RS232 hub supports USB...

$297.95

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