1.Product Parameters:
Input interface: PCI-E X16
Supported devices: M.2 NVMe SSD hard drive
2. Product accessory list:
1.0MM silicone gasket---4PCS 
3. Product description and features:
can run 4 NVMe hard drives simultaneously (without signal splitting, the motherboard can only run SSD1 interface disks);
PCI-E4.0 X16 is backward compatible with PCI-E3.0;
fully utilize their performance, thereby increasing operating speed;
4. Precautions:
motherboard has PCI-E signal splitting
X470, X570/Z590/B550), all support PCI-E signal splitting. Before purchasing, you can check the motherboard specifications or consult the manufacturer to 
If the existing motherboard is unclear, the most intuitive way is to check the information in the motherboard BIOS; If the motherboard supports 
PCI-E splitting, relevant options can usually be found in the BIOS settings for configuration. These options may be located in the "Advanced" or "Advanced 
Settings" section, and their specific locations may vary depending on the motherboard model and BIOS version. In the BIOS interface, options related to 
etc. By adjusting these options, PCIe channel splitting can be achieved to meet specific hardware requirements.