I have had two SCR3500 readers in the last 7 years and they have worked fine. However, I cannot get the SCR3500A to work on my Mac systems. The reader is visible on the USB bus, but the CAC card is never recognized and no LEDs are lit. If you are using libcackey as middleware and cannot update Identive drivers, beware of SCR3500A readers. CAC card: Oberthur One 128 v5.5 Dual Tested: MacBook OS X 10.9, libcackey 0.78 - no response. MacBook OS X 10.11, libcackey 0.78 - no response. MacBook OS X 10.11, scmccid 5.0.34 - card detected, pkinit error. Windows 8/64, ActivClient 7.0.1.14 - the card is recognized, the card works. Windows 10, ActivClient 7.0.1.14 - the card is recognized, the card works.
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