Features: Data transmission speed 7000MB/s new PCIE4.0 PCIE to M.2 NVMe expansion card 7000Mbps metal channel transmission speed, fast heats dissipation, accelerated performances improvement for large file computers, accelerated second transfer Multiple protections recommendations for installation, secure and easy to use Easy installation methods, instants improvement of computer performances, suitable for various situations, software lagging, speed improvement, meeting the needs of professionals in dessign/video and other fields Upgrades the M.2 hard drive to fully utilize computer performances, interfaces accelerates startups speed, and gaming is amazing! Specifications: Item:M.2 NVME to PCIE4.0 Adapter Card Material: Metal Size:approx 14x4.4cm/5.51x1.73in Speed: 7000MB/s Note: Due to the problems of lighting effectsand shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC M.2 NVME to PCIE4.0 Adapter Card