Perle IOLAN SCS8CM DC. Management protocols: SNMP v3. Authentication method: RADIUS, TACACS+, LDAP, NIS, Kerberos, Security algorithms supported: 128-bit AES, 256-bit AES, SSH, SSL/TLS, 802.1x RADIUS, DES, 3DES, SHA-1, MD5. Console port: RS-232. Dimensions (WxDxH): 264 x 434 x 44 mm, Weight: 3000 g. AC input voltage: 48 V, Input current: 0.19 A