Many Nevion products are equipped with Small Form factor Pluggable (SFP) or 10 Gigabit small form factor pluggable (XFP) optical interfaces to facilitate convenient wavelength adjustments for customer deployed equipment. This simplifies adding and scaling services on an incremental, as required basis. Pluggable optics insert into cages that are mounted internally onto Nevion cards, and a self-aligning connector with short fiber links is used to interconnect through the chassis backplane. This ensures that cards can be installed and removed without disrupting any backplane connections. To determine which SFPs or XFPs can be used with which modules, please refer to this Ventura SFP and XFP Options document.