Features: This adapter card only supports 22110 2280 2260 2242 2230 size pciex2 X1 AHCI and nvme protocol m.2 ngff hard disk, theSATA protocol certainly does not support! The fixed column is located at 22110 size position during shipment. If you need other positions, please consult before purchase or use pliers to pull out the fixed column and move it to the corresponding position after receiving the goods. Note that AHCI is not equal toSATA! This is the pciex1 interfaces. If your original hard disk is pciex4, the speed is almost a quarter of that of original hard disk (the premise is that both are pcie3.0, and if your interfaces is pcie2.0 or pcie1.0, the speed is even slower). This product is compatible withPCIe 4.03.02.01.0, but the interfaces bandwidth is different at different speed. There are different bandwidth speedometers for reference. Whether it can be used as a system disk is related to your mainboard and the transfer card. Generally, the mainboard with DDR4 memory can support nvme protocol hard disk as boot disk, and some old mainboards can also realize nvme hard disk boot by brushingBIOS The graphics card slot of the mainboard, do not incorrectly insert thePCI slot, the slot may burn the mainboard, adapter card and your solid hard disk! Specifications: Material:PCB Type:NVME to PCIE IX(4.0) to X1/ NVME to PCIE IX(4.0) X4 Size:Mixed Supports NVME SSD 2230 2242 2260 2280 22110 Note: Due to the lightand screen difference, the item color may beslightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement. Package includes: 1PCx NVMe PCIe M.2 NGFF SSD to PCIe X1 Adapter card 1PCx Half Height Bracket With Screws