Hi José In theory, any Javacard 2.1 / Global Platform 2.0.1 compliant smart card should work. In reality, due to subtle differences in standards implementations the only cards that we are certain will work are the ones we test with. From the RHCS8 release notes: 3.4. Supported Smart Cards The Enterprise Security Client supports Global Platform 2.01-compliant smart cards and JavaCard 2.1 or higher. The Certificate System subsystems have been tested using the following tokens: * Gemalto TOP IM FIPS CY2 64K token, both as a smart card and GemPCKey USB form factor key * Gemalto Cyberflex e-gate 32K token (Red Hat Enterprise Linux only) * Safenet 330J Java smart card Smart card testing was conducted using the SCM SCR331 CCID reader. The only card manager applet supported with Certificate System is the CoolKey applet which ships with Red Hat Enterprise Linux 5.3. Cheers, Kev On 05/13/2010 03:12 AM, José Angel wrote: