Features: Clear to the operating system and does not require any software driver. Support data transmission up to 4.0gb, support Socket 3 (M-Key). One PCI-E 4x female socket and one NGFF M2, key-M male connector available. The floppy 4-pin power connector can be used to stabilize power supply.2 screw holes 2260/2280 are available for easy installation.Support any operating system, such as for Windows, for wince etc. Allows users to use standard PCI-E 4x cards on M2 NGFF M-key desktops or laptops. Specifications: Material:Metal+Plastic Product size: about 80x22x15mm/3.15x0.87x0.59inch Package Includes: 1xM2 (NGFF) SSD to PCI-Express 4x Adapter Card note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.