The iPad Air 5 (Cellular) comes with a firmware identifier iPad13,17. It has a Board Configuration of J408AP and a Board Platform of t8103. The CPID and BDID are 33027 and 18 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.