iOS 10.3.3 Download IPSW Direct Links:
12.9-inch iPad Pro 2017 (WiFi)
12.9-inch iPad Pro 2017 (Cellular)
iPad Air 2 (6th generation WiFi)
iPad Air 2 (6th generation Cellular)
iPad Air (5th generation WiFi + Cellular)
iPad Air (5th generation WiFi)
iPad Air (5th generation CDMA)