Digi Passport 4. Management protocols: HTTP/HTTPS, SNMPv3, PPP, RIP. Authentication method: TACACS+/ RADIUS/LDAP, Security algorithms supported: SSH, SSL/TLS. Console port: RJ-45, CardBus PCMCIA slot type: Type I. Operating system provided: Linux Kernel 2.6.12. Dimensions (WxDxH): 155 x 203 x 29 mm, Weight: 940 g