SPM3726-I a SATA to SATA(s) Port Multiplier - internal solution Internal solution for Port Multiplier support HDD greater than 2TB SATA to SATA port multiplier bridge Full support for FIS-based switching and command-based switching SATA host controllers SiI-3726 one to five SATA port Features independent 8 KByte FIFO per Device Serial ATA channel for reads and writes All ports support hot plug and extended (48 bit LBA) drive capability.