The Fujitsu Futro S900 was built up to 2013, and only had one SATA port from the factory. [Jan] wanted to add another as this would make the device more useful as a network attached storage server.

The SAS Initiator Controller IP Core provides an interface to high-speed serial link replacement for the parallel SCSI attachment of mass storage devices. Maximum supported bandwidth is 48 Gbps. The ...

2 sockets, so if you need more storage once they're all in use you either have to use a PCIe expansion card or, more sensibly, the SATA ports on the board. Cheap SATA SSDs all use QLC NAND memory ...