There does not appear to be an optional roof fan for the NetShelter SV cabinets.
All versions and serial ranges.
Some customers may want to add a roof fan to their NetShelter SV.
The NetShelter SV cabinets do not currently have roof fans available.
Some of the fans that can be used inside the SV cabinet are: ACF001, ACF002, ACF003, ACAC40001, ACF201BLK, ACF202BLK.