Features: brand new and high quality Imported main controller with wide compatible, supports PCI-E 2.0, and has high speed Th bottom of the product is reinforced to protect to protect the product from deformation. The transmission speed is high-speed and stable Using the original ASMedia ASM1184E main control chip，high performance. With all aluminum alloy heatsink for better performance. Specifications: Module Type : for M.2 NVME to 4 PCI-E 1X Main Control Chip: ASM1184E Output interface: USB3.0 PCI-E 1X Size: approx 22x80mm/0.87x3.15in Color: Black Support system: Win 7/8/10/11 Linux Package Includes: 1 PC x for M.2 NVME KEY- for M to PCIE Adapter Card note: Please make sure the motherboard is with or without Key-M for M.2 slot for M.2 sata cannot be used USB 3.0 cannot be plugged into USB devices, only the equipped USB graphics card extension cable can be connected for M.2 slot must support 2280 size Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2 for cm differences due to manual measurement.