IBM 16 Port PCIe ServeRAID SAS SATA 6GB RAID Expansion Adapter 46M0997 | eBay
If you need many this is even greater for 25 ea + 12 shipping
IBM 46M0997 ServeRAID Expansion Adapter Card w/ 46V7067 PCI-e Riser Card | eBay
If you need many this is even greater for 25 ea + 12 shipping
IBM 46M0997 ServeRAID Expansion Adapter Card w/ 46V7067 PCI-e Riser Card | eBay