Serial includes built-in support for cables and devices that are USB CDC (Communications Device Class) compliant or that use one of the following USB/Serial bridge chips:
Prolific PL2303 device family
Texas Instruments TUSB3410
Magic Control Technology MCTU232
The following devices are known to work well with Serial:
USB Modems that list CDC compliance - "soft modems" often are not compliant
Any other USB CDC compliant device
If you're looking to purchase a new serial cable for your Mac see Recommended Cables .