CISCO - EXPRESS FORWARDING 256 INTERFACE MODULE - SWITCH - MANAGED - 48 X 10/100/1000 - PLUG-IN MODULE (WS-X6548-GE-TX). SPECIFICATION : - DEVICE TYPE : EXPANSION MODULE - 48 PORTS - FORM FACTOR : PLUG-IN MODULE - CONNECTIVITY TECHNOLOGY : WIRED - CABLING TYPE : ETHERNET 10BASE-T, ETHERNET 100BASE-TX, ETHERNET 1000BASE-T - DATA LINK PROTOCOL : ETHERNET, FAST ETHERNET, GIGABIT ETHERNET - DATA TRANSFER RATE : 1 GBPS - STATUS INDICATORS : LINK ACTIVITY, STATUS - FEATURES : FULL DUPLEX CAPABILITY, AUTO-SENSING PER DEVICE - RAM : 6 MB - EXPANSION SLOTS TOTAL (FREE) : 1 (1) X EXPANSION SLOT - INTERFACES : 48 X NETWORK - ETHERNET 10BASE-T/100BASE-TX/1000BASE-T - RJ-45 - COMPATIBLE SLOTS : 1 X EXPANSION SLOT CONDITION : REFURBISHED. AVAILABILITY : IN STOCK. OUR WARRANTY : 30 DAYS.