This is notification for the planned End of Life (EOL) of the DuraCOR 80-40 mission computer and all customer-specific derivatives. The last day to order the affected product is 30 July 2021. New orders are non-cancellable and non-returnable. All products must be shipped by 30 December 2021. The announcement is made in order to allow customers to assess any potential impacts, provide time to order sufficient products to maintain long-term program requirements, and/or to allow for a managed product migration to a new product.