This is a smokin price especially since you have two ports that can run IB or Ethernet.
HP 649281-B21 Infiniband FDR/EN 10/40GB MCX354-HP ADAPTER 656089-001 661685-001 | eBay
HP 649281-B21 Infiniband FDR/EN 10/40GB MCX354-HP ADAPTER 656089-001 661685-001 | eBay