The Jogress Chip is an evolution item that "combines" two mega level digimon into one. It is obtainable through Calumon in the DATS Center.
There are currently five possible combinations to digivolve using the Jogress Chip.
It is also possible to obtain the Jogress chip from a green Devimon Box, which lasts 1 day, or from the Cash Shop.
Omegamon digivolves from WarGreymon and MetalGarurumon at level 41 with the Jogress Chip.
Alphamon Ouryuuken digivolves from Alphamon and OuRyuumon at level 41 with the Jogress Chip.
Examon digivolves from Brakedramon and Slayerdramon at level 41 witj the Jogress Chip.
Shakkoumon (Jogress) digivolves from Angemon and Ankylomon at level 20 with the Jogress Chip.
Silphymon (Jogress) digivolves from Aquilamon and Gatomon at level 20 with the Jogress Chip.