... ConnectivityExpansion Slots Total (Free):4 ( 4 ) x HWIC 2 ( 2 ) x AIM 2 ( 2 ) x NME-X 4 ( 4 ) x PVDM ... DES, AESAuthentication Method:Secure Shell v.2 (SSH2)Compliant Standards:VCCI, CISPR 22 Class A, CISPR 24, EN 60950 ... , EN 61000-3-2, IEC 60950, EN 61000 ... EN55022 Class A, UL 60950, EN50082-1, CSA 22.2 No. 60950, AS/NZ 3548 Class A, ICES-003 ...