Also it's a complex adapter, since it has to be a PCI-e host. Generally SATA->x (USB, SD card, etc) adapters can be done with much simpler app-specific microco

Also it's a complex adapter, since it has to be a PCI-e host. Generally SATA->x (USB, SD card, etc) adapters can be done with much simpler app-specific microcontrollers with IP blocks sprinkled in.