Send and Transmit CW using your PC and favorite key with the

CWMorse MY-KEY-SERIAL2 USB to key interface

*** NEW! USB to USB-C adapter included! ***

MY-KEY-SERIAL2 is a hardware interface to connect your computer/tablet AND RADIO to a straight or iambic key via a USB port using compatible software.   The MY-KEY-SERIAL2 includes an optically isolated relay to allow both positive or negative keying of your favorite CW transmitter.

For compatible software and usage see the CW Practice page.

Compatible with Windows 10, 11, Linux and others

Manuals can be downloaded at:

9 in stock



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Additional information

Weight 2 oz
Dimensions 3 × 1.5 × 1 in


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