Features: Seamlessly upgrade your systems with PCIe4.0 adapter, offering plug and play compatibility for PM9A3/9D3 hdds without requiring driver installations across major operating systems. Engineered with PCB and double profile support for 5.9mm/8.0mm hdds, this converter features low profile PCIe bracket and eliminates the need for additional heatsinks. for IT professional, data center technicians, and server administrators seekings high performances NVMe storage expansion solution for enterprises environments. Optimize iots infrastructure, server racks, and data center deployments by converting hdds to PCIe4.0 4x interfaces for accelerated enterprises storage operations. Achieve compatibility with form factor drives through this PCIe NVMe converter, delivering full height PCIe4.0 4x bandwidth for missions critical storage upgrades. Specifications: Materials: PCB Size: 17x12x2cm Package Includes: 1PC PCIE4.0 Adapter 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.