Features: The pcie4.0 Expansion Card revolutionizes storage expansion with pcie4.0 chip integration, enabling automatic multi drive management without BIOSs configuration, true plug and play solution for hasslefree NVMe hdds expansion. Featuring 12 flexible slots supporting both /U.2 NVMe hdds and universals full/half height bracket compatibility, this PCIe4.0 expansion card delivers massive storage scalability for workstations and compact servers. for content creators, data engineers, and IT professional requiring enterprises storage density for 8K video production, AI model training, and database server applications. Perfectly handles bandwidth intensive tasks like 4K video editing, virtualization clusters, and large scale file servers while maintaining PCIe4.0 full 64Gbps throughput across simultaneous drive operations. Engineered with fanless aluminum cooling architecture and optimized thermal design, this enterprises expansion card ensures silents, performances during prolonged heavy workloads while preventing data compromising overheating. Specifications: Materials: Metal Length: 23cm Bus rate: 256GT/S Bus specification: PCle4.0X16 Single interfaces: NVME4.0X4 Single interfaces speed: approx. 6400-7300MB/S Hard disk specification support: 2230/2242/2260/2280/22110 Package Includes: 1PC pcie4.0 Expansion Card note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.