The iPad Pro (12.9-inch, Cellular) (6th generation) comes with a firmware identifier iPad14,6. It has a Board Configuration of J621AP and a Board Platform of . The CPID and BDID are 33042 and 14 respectively.
IPSWDL.COM is a website that provides download links for IPSW files, which are used to install or restore firmware on Apple devices. These files are sourced directly from Apple's servers.