Build in 67pin B key M.2 female connector  Connected M.2 NGFF SSD Signal to microSATA signal port    PCI Express M.2 Specification Revision 0.7, Version 1.0    SerialATA_Revision_3_2_Gold  Support 42mm M.2(NGFF) SSD(30mm,60mm SSD Adapter is optional)  Dimension: 79.3mm x 39.3mm