Features: brand new and high quality Integrated high-speed signal enhancement technology, supporting for M.2 NVME SSD One card for two for M.2 SSD. Support: 2230-42-60-80-110 All Size for M.2 SSD. Humanized LED work indicator lights. PCIE 3.0 GEN3 X4 full speed design. Support system: for Windows / for Mac / Linux. Specifications: Name: PClE to for M.2 NVME Dual for M for Key Expansion Card Number of interfaces: 2 for M for Key Nvme Interface Applicable slots: PCl-E X4/X8/X16 Bus bandwidth: 40Gbps Size: approx. 180x120x63cm/7.09x4.72x2.48in Support: 2230-42-60-80-110 All Size for M.2 SSD Note: There may be a little size error in manual measurement. Due to different lighting effects and monitor settings, the color of the actual item may not exactly reflect the color in the images. Package includes: 1 x PCI-E X4 to for M.2 adapter card