It would help to know what model system you have, but most Dell systems ship with the drive in IRST mode (RAID ON), meaning you must pause the OS install to load the Intel IRST driver.   If this is the only SSD in the system, you can go into setup (F2 at powerup) and change the drive from IRST/RAID ON to AHCI/RAID OFF, and no driver will be needed. If you do need the IRST install-mode driver, it's here for Intel based systems (it will be different for an AMD Ryzen system); [URL] (it's the third button you want).  
Looking for help with re downloading operating system SSD not recognised how can I re install O/S Cannot get into pc other than bios and one time boot menu
SSD not found