Perle IOLAN SDS1. Management protocols: SNMP v3. Authentication method: RADIUS, TACACS+, LDAP(S), NIS, Kerberos, Security algorithms supported: SSH, SSL/TLS, 802.1x RADIUS. Console port: RS-232. Dimensions (WxDxH): 91 x 64 x 24 mm, Weight: 0.23 g. AC input voltage: 9 - 30 V