I'm with msaeger for different reasons.

Search on Pricewatch for "BEFW11S4" . Do you get a bunch of BEFW11S4s? No. You get a lot of "Works with BEFW11S4". I'm guessing this is intentional overloading of the product description by the vendors, but (unless I am missing a more granular search capability) it makes Pricewatch a PITA that I won't use. I e-mailed them to that effect.