DATOptic 5X1 eSATA 5 x Serial ATA (SATA) Port Multiplier base on SiI-3726 SPM3726 eSATA Port Multiplier - Host, access, and power LED indicator Silicon Image SiI-3726 - support bard drive greater than 2.0TB PM ware bridge with built-in LED indicators one eSATA to five SATA port multiplier SPM3726 is 1-to-5 SATA Port Multiplier designed to provide a high performance link between a single eSATA host port and 5 SATA device ports.