Features: 4 Port SATA3.0 PCI-E Expansion Card,ASM1064 chip high-speed transmission and stable performances, in line with M.2 M Key standard. Realize the PCIExpress3.0 2line bandwidth, with 4 SATA3.0 ports extending from the PC host to the M.2 Key M slot PCIE3.0 Superior Performances, With PCIe3.0 bringing stable and fast transmission speed. Plugandplay, no other software installation or setting required With Indicator Light: Light on: Connected; Light off: Not Connected; Flashing Light: Reading or Writing modes Specifications: Product Name: 4 Port SATA3.0 NVME Expansion Card Transmission protocol: PCIe3.0 Chip: ASM1064 Color: Black Size：approx 80x22mm/3.15x0.87in Input Interface: M.2 PCIe NVMe Output Interface: 4 Ports SATA3.0 Power Supply: No additional power supply required Bandwidth 16Gbps Compatiblle slot: M.2 PCIe NVMe M key Material: ABS + metal Feature: with heatsink Support system: WindowsXP/2003/Win7/Win8/Win10 (32/64bit) and more Package Includes: 1 PC 4 Port SATA3.0 NVME Expansion Card note: Due to the different monitorsand light effect, the actual color of the item mightbe slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviationdue to manual measurement.