Intel RAID Expander Card RES2SV240 is a 24-port 6.0Gb/s Serial Attached SCSI (SAS) expander that enables the connection of up to 24 directly attached SAS or Serial ATA (SATA) devices. Each expander phy is individually configurable and performs SAS and SATA transfers based on the speed of the host or target at either 6.0Gb/s 3.0Gb/s or 1.5Gb/s.