Expand the motherboard's mSATA/M.2(NGFF) slot to the SATA 15+7 pin connector. No drive is required to connect the signal from the mSATA connector to the SATA 7 Pin connector. Reasonable switch design, you could easily adjust the switch. Use it to easily connect any of the M.2 or mSATA SSDs to SATA port. Made of plastic material. Specification: Size: 100 x 69mm/3.94 x 2.72inch Package Includes: 1 Piece mSATA/M.2(NGFF) to 15+7pin SATA Adapter Board 2 Pieces Screws 1 Piece Nut 1 Piece Screwdriver Note: Please allow slightly 0-1cm difference due to manual measurement. Color may be slightly different since different monitor. Thanks for your understanding and attention.Wish you a pleasant shopping experience!