Interface: PCIe Gen4 NVMe 1.4 Form factor: M.2 2280 *This drive will only work with M/B that supports PCIe 4 (PCIe 3 backward compatible). The drive is designed to work with direct installation onto M/B, it may not work with external enclosure Sequential R/W (Max): Up to 7400/6800MB/s * test perform in ADATA internal lab, actual performance varies by paired system and testing environment. When paired with PCie 3.0 port, max R/W will be limited to 3400/3000MB/s Drive comes with pre-installed aluminum heat spreader. Heat spreader is not removable 5 Years Manufacturer Warranty