The Delock PCIe x8 expansion card provides two internal NVMe M.2 (Key M) slots. It requires PCIe bifurcation from the motherboard to operate both slots simultaneously (without bifurcation, only the first slot is available). Supports M.2 sizes 22110/2280/2260/2242/2230, double-sided modules (maximum component height 1.5 mm), NVM Express (NVMe), S.M.A.R.T., and TRIM. It is UEFI 2.3.1+ bootable and compatible with Windows 8.1/10/11, Windows Server 2019/2022, and modern Linux kernels. Features a low-profile form factor, includes a low-profile mounting bracket, and comes with an user manual.