Enclosure Type:Rack-mountable - 1U / Width:44.3 cm / Depth:29.5 cm / Height:4.4 cm / Ports Qty:24 x Ethernet 10Base-T, Ethernet 100Base-TX / Data Transfer Rate: 100 Mbps / Data Link Protocol:Ethernet, Fast Ethernet / Routing Protocol:RIP-1, RIP-2, static IP routing / Authentication Method:Kerberos, RADIUS, TACACS+, Secure Shell v.2 (SSH2) / Compliant Standards:CE, GOST, CISPR 24, NOM, EN55024, EN55022 Class A, CISPR 22, EMC, UL 60950-1, IEC 60950-1, EN 60950-1, FCC Part 15 A / Min Operating Temperature: 0 °C / Max Operating Temperature: 45 °C / Humidity Range Operating:10 - 85%