This SFP (Small Form-factor Plug-in) transceiver enables one 1000BASE-Tconnection. SFPs have a form factor one-half the size of current industrystandards. This SFP transceiver can be used in those 3Com switches and modules whichsupport SFP modules. SFPs can be mixed and matched on a given switch tomaximize flexibilityThis Product Supports:The SFP"s simplicity of design create a new definition of user-friendliness with outstanding mechanical and electrical performanceEnables one 1000BASE-T connectionThis Module Can be used in conjunction with other SFPs: 3Com 1000BASE-SX SFP Transceiver (3CSFP91), 3Com 1000BASE-LX SFP Transceiver(3CSFP92), or 3Com 1000BASE-LH SFP Transceiver (3CSFP97)