Advanced PCB Design for Enhanced Durability: The PCB board is meticulously crafted to shield your hard drive contact pins from potential damage caused by frequent insertions and . This thoughtful design ensures prolonged durability and reliability.Seamless Compatibility with PCIe 4.0 and 3.0: Experience uninterrupted high-speed data transfers! Our protectors support both PCIe 4.0 and 3.0, guaranteeing that your hard drive's performance remains consistently fast and efficient.Versatile Sizing Options: Our protectors support 2230/42/60/80/110 hard drives and can extend to 22110 Size. For those with unconventional drive sizes, simply use a pair of scissors to trim away any excess, providing flexibility for storage configurations.for Your Requirements:M key Protector: perfect for M.2 M-key NVMe hard drives, delivering maximum speeds of PCIe X4 4.0. Experience top-tier performance for your high-speed storage needs.The appearance styles and colors of screwdrivers/screws/nuts are randomly distributed, don't accept the specifiedColour:black+white/blue+whiteMaterial:PCBPackage Contents:1 x SSD Protection PCB Board1 x Screwdriver1 x Screw1 x Screw nutOnly 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.