FlexWAN

From Cisco Clue

There are 2 types of FlexWAN cards for the 6500 series - each takes 2 7200-type Port Adapters:

Card	Model	Fabric connection
2 port adapter FlexWAN	WS-X6182-2PA	Classic Bus
2 port adapter Enhanced FlexWAN	WS-X6582-2PA	SFM x1