3WARE 9650SE-12ML 3Ware 12-Port SATA 3Gb PCIe x8 Raid Retail 9650SE-12 3ware 9650SE-12ML 12 Port Serial ATA RAID Controller

Fast enough for my whitebox server, came equipped with BBU and battery. I had to enable the bbu in the card's bios and charge/ test capacity, but it hums along without issue now. My only beef is the drivers have not been updated in several years and it's not supported in esx 6. I started using proxmox instead and have no issues.

Upgraded from 8 to 12 ports for home storage server. Perfect.