Ports 24 RJ-45 auto-negotiating 10/ 100/ 1000 PoE ports( IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T, IEEE 802.3af PoE) ; 4 SFP 1000 Mbps ports; Supports a maximum of 24 autosensing 10/ 100/ 1000 ports plus 4 1000BASE-X SFP ports, or a combination Memory and processor Module : ARM @ 333 MHz, 128 MB flash, packet buffer size: 512 KB, 128 MB RAM Latency 100 Mb Latency: < 5 µ s; 1000 Mb Latency: < 5 µ s Throughput 41.7 million pps Routing/ switching capacity 56 Gbps Routing table size 32 entries Management features IMC - Intelligent Management Center; limited command-line interface; Web browser; SNMP Manager; IEEE 802.3 Ethernet MIB Power and operating requirements Input voltage 100-240 VAC Input frequency 50 / 60 Hz Safety UL 60950; IEC 60950-1; EN 60950-1; CAN/ CSA-C22.2 No. 60950-1-03 Electromagnetic compatibility FCC part 15 Class A; VCCI Class A; EN 55022 Class A; CISPR 22 Class A; EN 55024; EN 61000-3-2 2000, 61000-3-3; ICES-003 Class A Operating temperature range 0 to 45° C Operating humidity range 10 to 90% ( noncondensing) Dimensions and weight Product dimensions ( W x D x H) 42.01 x 44.2 x 4.32 cm