Dell 320-2881 SFP stands for Small Form-factor Pluggable transceiver. It is a pluggable version of SFF. Companies like Agilent, IBM, Lucent, Siemens, Infineon, AMP/Tyco, and others are utilizing SFP which is administered by MSA (Multisource agreements). In the rear of the device, you will find 10I/O connections. This device merge switch, router, media converter and other to a fiber optic or a copper networking cable.