Additional Details ------------------------------ Bullet point: x4 PCI Express to M.2 PCIe SSD Adapter Connect a PCIe M.2 SSD (NVMe or AHCI) to your Product description: Features. x4 PCI Express to M2 PCIe SSD Adapter Connect a PCIe M2 SSD NVMe or AHCI to your computer through PCI Express for ultrafast data access . Boost system speed and performance by adding a PCIe M2 SSD to your PC. Supports PCIe M2 SSDs NVMe and AHCI 2242 2260 2280 and 22110 drives. Compatible with PCIe 30 motherboards and backward compatible with PCIe 20 and PCIe 10Specifications. Weight 638 lbs