PCIe 4.0 (Gen 4) x4 compliant design for blazing fast transfer speeds of up to 8 GB/s, doubling the older PCIe 3.0 generation. Easily upgrade to the latest PCIe 4.0 NVMe SSDs to increase performance for most popular and latest games on market. Large covered heatsink cooling design to prevent overheating your SSD from throttling. Wide compatibility to work with single or double-sided SSDs and length sizes including 2230, 2242, 2260, 2280. Backwards compatible with PCIe 3.0, 2.0, 1.0 and PCIe slot locking mechanism to secure adapter. Quality design and manufactured multi-layer PCBA to ensure overcurrent, overvoltage, short circuit and EMI protection. Converts one M.2 (M key) SSD to PCIe 4.0 interface.