Red Hat Enterprise Linux has been tested with the Cyberflex e-gate card and reader, but any card that complies with both Java card 2.1.1 and Global Platform 2.0.1 specifications should operate correctly, as should any reader that is supported by PCSC-lite.

Red Hat Enterprise Linux has also been tested with Common Access Cards (CAC). The supported reader for CAC is the SCM SCR 331 USB Reader.