Supports data transfer up to 6.0G b/s; Supports 27mm half-height & 50mm full-height mSATA SSD; Supports socket 2 (B Key) & socket 3 (M Key).; Supports boot function; Supports any OS, like Windows, WinCE & Linux etc.; Compliant with PCI Express M. 2 specification 1.0; Compliant with SATA III specification.; 3 screw holes 2242/2260/2280 available to fix PCB board; 4 screw holes available to fix mSATA SSD.; Please note that it supports mSATA Mini PCI-E SATA SSD only. It does NOT supports Mini PCI-E (PATA), 1.8" Micro SATA & Airbook SSD.