The IO Crest 2 Port SATA III 6Gb/s M.2 22x42 Controller Card ( SI-MPE40149 ) is the easiest way to update any computer with SATA ports with a free M.2 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-MPE40149 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.