Features: Hollowed array type, strong heat dissipation. LED working indicators,if in power: green lights; Read and write: green lights flashing. Thickened sinking gold plated using gold-plated process, more solid contact, more stable data transmission. Support PCIE 4.0 is backward compatibles PCIE3.0 Support X16/X8 card slot The motherboards needs to support PCIE X4X4 splitting Suitable for users who need to expand storage space Specifications: Model：PH46-2 2Bay Split Adapter Type：SFF-8639 NVME and 2.5 Solid Disk to PCIE4.0 Adapter Size：about 16.6x12.7cm/6.54x5in Package Includes: 1PC PH46-2 2Bay Split Adapter note: Please allow 0-1cm error due to manual measurement. please make sure do not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual color. Thank you!