D- LINK DGS-1210-20 12 port Switch Networking

D-LINK - DGS-1210-20 ETHERNET SWITCH,12 PORTS,MANAGEABLE,12 X RJ-45,4 X EXPANSION SLOTS ,10/100/1000BASE(DGS-1210-20). KEY FEATURES : PRODUCT TYPE : ETHERNET SWITCH STACK PORT : NO TOTAL NUMBER OF NETWORK PORTS : 12 NUMBER OF NETWORK (RJ-45) PORTS : 12 MEDIA TYPE SUPPORTED : TWISTED PAIR ETHERNET TECHNOLOGY : GIGABIT ETHERNET, FAST ETHERNET NETWORK TECHNOLOGY : 10/100/1000BASE-T NUMBER OF TOTAL EXPANSION SLOTS : 4 LAYER SUPPORTED : 2 MANAGEABLE : YES POE (RJ-45) PORT : NO INPUT VOLTAGE : 110 V AC, 220 V AC FORM FACTOR : DESKTOP, RACK-MOUNTABLE