GS924S*24 SFP Slot*2 RS-232(RJ-45 connector)*1, Performance; Switching type,Store&forward type Maximum packet forwarding capability:35.7Mpps, Switching delay:1000M to 1000M 1.9usec, 100M to 100M 3.9usec, 10M to 10M 22.6usec, Memory capacitance; Flash memory 2Mbyte,Main Memoy 16Mbyte , MAC Address Number of registered:8k VLAN Number of registered:256(VID=1 to 4094), Suport; VLAN(port base/IEEE 802.1Q/multipul,QoS(IEEE 802.1p) Portlanking(IEEE 802.3ad(Manual Configuration)), Power source:100V to 240Vac 50/60Hz, Input current:1.5A, Dimention:441(W)-235(D)-44(H),3.3kg,