Fujitsu D2755-A11 (intel x520-da2) 10GB SFP+ NICs - $30ish

[autoturk]

There are plenty of cheap x520s on ebay. The deal above was pretty good but you can get close to it just by keeping an eye on ebay. Regarding them being legit or not... not sure how you ensure that.

Agreed - this was the second $30-ish deal I found when I posted it. The first I bought from a seller who thought they had lost the package but it arrive a month later, and the second (and third!) was what I posted above.

Some helpful search terms based on the Intel OEM thread:

(D2755-A11,49Y7970,49Y7971,49Y7972,RC49N,K7H46,3DFV8,0C6FW,Y5M7N,5N7Y5,81Y3522,81Y3520)

and

(JM42W,9VKJ0,VFVGR,U810N,F3VKG,942V6,XYT17,49Y7960,49Y7961,49Y7962,662539-001,QR449A)

It's split into two b/c of eBay's search term length limits, but that should return X520 based NICs.

 

[itronin]

not quite cold (yet) necro

saw this while hunting for something else.

Fuji 10gbe T520 back below 30USD.