The IO Crest full height MiniPCIE to SATA III 2 ports card ( SI-MPE40150 ) is the easiest way to update any computer with SATA ports with a free full size MiniPCie slot. Once installed?? this host card will add SATA ports with two independent channels. This allows support of two SATA devices at speeds of up to 6Gb/s whether it is a SATA hard drive or SATA device. Using the JMB582 chipset, the SI-MPE40150 can provide a maxium sequencial Read / Write Speed of 850 MB/s to 2 SATA 6Gb/s ports. For the storage solution based on data transfer of multiple hard drives, the newly added FIS-based switching design can overcome the bottlenecks created by operating multiple SATA storage devices simultaneously.