Features: Upgrades your PC with the PCIe 4X Expansion Card, featuring five port for seamlessly connection and enhances data transfer speed of up to 6.0 Gbps. This expansion card complies PCIExpress standards and is backward compatibles PCIExpress 2.0, 1.0 ensuring versatilities across different systems. For DIY computer enthusiasts to expand their storage capabilities with ease. Perfectly for building PC or upgrading existing setting, this card supports AHCI boot and hot swapping for flexible use. This expansion card integrates seamlessly into your computer components, enhancing performances and reliability. Specifications: Item：PCIE 4X Full Speed Adapter Support PCIE3.0 2.0 1.0 Compoatible PCIE x4x8x16 Slots With 5 Port 6Gbps Speed Support IPFS Hard Disk JMS585 Size: about 12cm/4.72in Package Includes: 1PC PCIE 4X Adapter Card note: 1cm=10mm=0.39inch Due to problem of lighting effect, there nmightbe certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurment.