Features: Brand new and high quality. Equipped with 4 U.2 NVMe SFF-8643 expansion ports. This product can only be used on PCIe slots that support PCIe splitting. Supports the use of SFF-8643 to SFF-8639 cables to connect to U.2 SFF-8639 solid-state drives. This product does not include the SFF-8643 to SFF-8639 cable! Supports PCI-E 4.0, 2U chassis, high-speed lossless transmission, and strong compatibility. This product is not plug-and-play! It requires machine support and BIOS settings, making it a bit complex! Features 4 LED indicators for working status, providing greater convenience. Specifications: Item: PCIE 4.0 to U.2 NVME Expansion Card Model: PH49 Material: PCB Card Slot: PCIE X4 X8 X16 Expansion Slot: SFF-8643 Port: 4 ports Size: Approx. 120x150mm / 4.72x5.91in Note: Ensure your motherboard's PCIe x16 slot supports PCIe signal splitting. For details, please contact your motherboard's official customer service. Due to lighting effects and shooting angles, there may be some tolerances in the product. Please understand. Please allow 0-2mm error due to manual measurement. Package Includes: 1 pc x Expansion Card