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The Tablet MCDU is the first touchscreen multi-function control to be certified on a commercial aircraft. Featuring a 9" AMLCD, the Tablet MCDU's primary function serves as a flight deck interface to two Flight Management Computers. Other subsystems supported by the Tablet include ACARS/CPDLC, SATCOM, ACMS,and electronic checklists. FAA TSO Approved STC is available for B757 (ST03423NY) G7330 TouchDU Data Sheet -
The TouchDU is a touchscreen display control for ARINC 739 Subsystems such as Datalink, CPDLC, Satcom and DFDAU.  When pedestal space is a concern, the TouchDU can also serve as a VHF, HF, or ADF tuning panel. And if that’s not enough, it can also annunciate SATCOM Voice status. G7321-() TouchDU Data Sheet
