FeaturesCompliant PCI Express Base Specification, r3.0 (compatible w/ PCIe r1.0a/1.1&2.0).Compliant with PCI Power Management Spec, r1.2.Microsoft Vista Compliant.Supports Access Control Services.High Performance. Non-blocking switch fabric, Full line rate on all ports.This card does not rely on PCIe bifurcation supported by CPU or PCHIndependent, Stand Alone NVMe SSD SolutionSupports Windows 10 & Later, Windows 2016 Server, & Linux Kernel 3.3 & laterSupports Full-height Bracket and Low-Profile BracketParameterModel: 8747-X8-4I-M.2Number of Device:4 InternalI/O Controller: PEX8747Host Bus Type: PCI Express 3.0 x8Compatible Device Type: 4 NVMe M.2 SSDInterface: 4*M.2Host Connectors: PCIe x8OS supported list:Windows,Red Hat Linux,Cont0S,VMware ESXi;Ubuntu Linux,Humidity:15% – 90%Operating Temperature5°C to 50°C (41°F to 122°F)Storage Temperature-25°C to 70°C (-13°F to 158°F)Dimension: 67.9mm x205mmProduct Weight:195gWarranty: 2 YearsIncluded in Package1- PCI Express x 8 to Dual NVMe M.2 SSD Switch Adapter1- Full-height Bracket (installed)1-Low Profile Bracket2- Screws and nuts for SSD