HP J4904A ProCurve 2848 Managed Stackable Switch

HP - PROCURVE SWITCH 2848 48PORT 10/100/1000BT 4 DUAL GBE MANAGED (J4904A#ABA). KEY FEATURES : DEVICE TYPE : SWITCH ENCLOSURE TYPE : EXTERNAL BUILT-IN DEVICES : LED PANEL NETWORKING : PORTS QTY : 48 X ETHERNET 10BASE-T, ETHERNET 100BASE-TX, ETHERNET 1000BASE-T DATA TRANSFER RATE : 1 GBPS DATA LINK PROTOCOL : ETHERNET, FAST ETHERNET, GIGABIT ETHERNET ROUTING PROTOCOL : IGMPV2, IGMP, IGMPV3 REMOTE MANAGEMENT PROTOCOL : SNMP 1, RMON 1, RMON 3, RMON 9, SNMP 3, SNMP 2C, HTTP CONNECTIVITY TECHNOLOGY : WIRED COMMUNICATION MODE : HALF-DUPLEX, FULL-DUPLEX SWITCHING PROTOCOL : ETHERNET STATUS INDICATORS : PORT STATUS, LINK ACTIVITY, PORT TRANSMISSION SPEED, PORT DUPLEX MODE, POWER, TEST MODE, FAIL EXPANSION / CONNECTIVITY : EXPANSION SLOTS TOTAL (FREE) : 4 ( 4 ) X MINI-GBIC INTERFACES : 48 X NETWORK - ETHERNET 10BASE-T/100BASE-TX/1000BASE-T - RJ-45 1 X SERIAL - CONSOLE - 9 PIN D-SUB (DB-9)