Product feature:Rocket 1204 Bus Interface:PCI-Express 3.0 x8 Number of Channel / Port:4x M.2 NVMe port (Dedicated PCIe 3.0 x4 per port) Data Transfer Rate:8 GT/s Number of device: 4x M.2 NVMe SSD SSD Form Factor:2242/2260/2280/22110 (supports single & double sided) Form Factor:Full-Height Card Dimensions:7.68' (W) x 4.38' (H) x 0.73' (D) Card Weight:1.39 lbs. Supported Operating Systems Windows :Windows 11,10 Windows Server 2022, 2019 Microsoft Hyper-V Linux:Linux Kernel 3.10 or later macOS:macOS 10.13 ~ macOS ventura 13.x FreeBSD:FreeBSD 12.1 and later System Requirements :Mac Platforms: • Apple Mac Pro Systems: 2012 and later Mac Pro systems; 5.1, 7.1 (2019) • Intel & Apple M1 Platform compatible • Thunderbolt™ 3 Connectivity via Thunderbolt™ Expansion chassis: RocketStor6661A PC Platforms: • Any PC Systems or Motherboard with an industry standard PCIe x8 or x16 physical Slot (Bifurcation is not required)