Windows 7 Installation Driver Link

Advanced users can use the Deployment Image Servicing and Management ( DISM ) tool to add USB 3.0 and NVMe drivers to the boot.wim and install.wim files of the ISO.

For a smoother experience, you can "slipstream" drivers directly into your bootable USB using tools like Rufus or specialized manufacturer utilities: windows 7 installation driver

If you are installing on a modern SSD (specifically NVMe), the Windows 7 installer will not recognize the drive. You must load these drivers during the "Where do you want to install Windows?" step. Advanced users can use the Deployment Image Servicing