these look legit? $22 and 10$ usd shipping to canada. need two as they are 4x (no more 16-8x slots available on these new systems)
Mellanox ConnectX-3 MCX341 SFP+10Gigabit Ethernet RMDA/RoCE | eBay
Mellanox ConnectX-3 MCX341 SFP+10Gigabit Ethernet RMDA/RoCE | eBay