StarTech.com Dual M.2 PCIe SSD Adapter Card, PCIe x8 / x16 to Dual NVMe or AHCI M.2 SSDs, PCI Express 4.0, 7.8GBps/Drive, Bifurcation Required - Windows/Linux Compatible. Host interface: PCIe, Output interface: M.2, Expansion card standard: PCIe 4.0. Product colour: Red, Mean time between failures (MTBF): 6493014 h. Data transfer rate (max): 7.8 Gbit/s. Supported storage drive heights: 22 mm. Width: 102 mm, Depth: 228 mm, Height: 22 mm