Omnikey 3121/3021 only needs a Mac driver on 10.8 or older
macos
Symptoms
Unsure whether to install an Omnikey driver on modern macOS.
Likely cause
macOS 10.9+ includes the driver natively.
Fix
1. On macOS 10.9+ no driver download is needed.
2. On macOS 10.8 or older, download the Omnikey driver from the manufacturer.
Sourced from militarycac.com. Rewritten for clarity.
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