Just FYI, there is new listing for the broken ones, this time with normal brackets.
MELLANOX CX314A MCX314A-BCBT Connectx-3 EN 40GB Ethernet Adapter PCI-E 2-Port | eBay
MELLANOX CX314A MCX314A-BCBT Connectx-3 EN 40GB Ethernet Adapter PCI-E 2-Port | eBay