Longer than that - in 2005 I was at a network hardware startup and we had vendor-locked (ahem, _qualified_) SFPs back then. Probably started back in 2001 when t

Longer than that - in 2005 I was at a network hardware startup and we had vendor-locked (ahem, _qualified_) SFPs back then. Probably started back in 2001 when they were introduced.