D-Link DIS-100G-10S/A2A, L2 Unmanaged Industrial Switch with 8 10/100/1000Base-T and 2 1000Base-X SFP ports 2K Mac address, Jumbo Frame 9K, 802.3x Flow Control, 802.3az Energy-Efficient Ethernet. IEEE 802.1p QoS: 8 queues per port. Heat dissipation 25.97 BTU/hour, MTBF 490 031, Max. the redirection rate of 64-byte packets is 14.88 Mpps, the packet buffer is 224 KB, the Jumbo frame is 9.6 KB, the switching matrix is 20 Gbit/s, the processor is 250 MHz, the Flash memory is 512 KB