1. The -defined M.2 hard disk KEY-B-M of the motherboard is transferred to the 7+15Pin interface. 2. This adapter card only connects signals from the M.2 hard drive to the 22PIN connection so that the adapter card does not have to be controlled. 3. If you cannot recognize the hard drive, please check whether it is an M.2 interface. The card generally does not work, please note. 4. Supports all standards M2.SSD, does not support the NVME M2.SSD. 5. Does not support PCI-E nvme M2 SSD. This card is suitable for 4 different SSD hard drive lengths, suitable for 3 cm, 4.2 cm, 6 cm, 8 cm and other M2 ( NGFF)) SSD hard drive lengths. High performance voltage regulator control chip, stable performance! Product type: M.2 NGFF to adapter Port: M.2 NGFF 22PIN Supported system: For WinXP / Vista / Win7 / Win8 32-bit / 64-bit /for MACOS / LINUX Suitable SSD length: 3 cm / 1.2 inches, 4.2 cm / 1.7 inches, 6 cm / 2.4 inches, 8 cm /3.1in. (Note: This product cannot be applied to PCIE NVMe / PCIE AHCI M.2 SSD with the "M" key.) Colour:Black Material:PCB+metal Package Contents: 1 x M.2 NGFF to adapter 1 set x installation accessories (the colors of the installation accessories are random, don't accept the specified color) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.