Features: 4-port SATA3.0 PCI-E expansion card with ASM1064 chip for high-speed transmission and stable performance, compliant with M.2 M Key standard. Achieve PCIExpress3.0 2-lane bandwidth, with 4 SATA3.0 ports extending from the PC host to the M.2 Key M slot. Superior PCIe3.0 performance provides stable and fast transfer speeds. Plug and play, no additional software installation or setup 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 x SATA3.0 Ports Power Supply: No extra power supply required Bandwidth: 16Gbps Compatible Slot: M.2 PCIe NVMe M Key Material: ABS + Metal Feature: With heatsink Supported Systems: Windows XP/2003/Win7/Win8/Win10 (32/64bit) and more. Note: Due to different monitors and lighting effects, the actual color of the item may differ slightly from the color shown in the pictures. Thank you! Please allow for 1-2 cm measurement deviation due to manual measurement. Package includes: 1 PC 4 Port SATA3.0 NVME Expansion Card