Chipset: Satalink Spif223a;Supports 3.5-inch SATA and IDE (ATA) Hard Drive; 5.25-inch SATA and IDE (ATA) Optical Drives;LED Indicators: Power-On and HDD-Activity;Ultra Low Power Consumption;Two Independent Ultra ATA Channels with 128/256 Bytes Buffer Per Channel;40 Pin IDE interface;Supports SATA Generation 1 with transfer rate up to 1.5Gbps;Supports Master/Slave/Cable Select mode by configuration switches