Toshiba OCZ RD400 Series Solid State Drive PCIe NVMe M.2 256GB & Add in Card (RVD400-M22280-256G-A) Next Generation M.2 SSD Based on NVMe Protocol (PCIe, Gen. 3 x 4), Designed For Mobile, Desktop, and Workstation Applications Sequential Read: Up to 2,600 MB/s; Sequential Write: Up to 1,150 MB/s; Random Read: Up to 210,000 4KiB IOPS; Random Write: Up to 140,000 4KiB IOPS NVMe Compliant- Say Good Bye To Legacy Storage Buses; PCI Express Gen. 3x 4- The PCIe Performance Surpass The SATA Bottleneck Once and For All M.2 2280 Compliant- Latest SSD Form Factor For Your Next Gen System Build; Low Power Mode- Requires Less Power When Drive Is In Standby Mode Custom Drivers- RD400 Utilizes Custom High Performance Drivers; PCIe Adaptor Card With M.2 Module; 5 Years Advanced Warranty Program