The Square Source can sync data from the Square API: Items, Categories, Discounts, Taxes, ModifierLists, Payments, Refunds, Locations, Team Members, List Team Member Wages, Customers, Shifts, Orders

RedShift is a fast and scalable data warehouse provided by AWS. Jitsu can send data to RedShift in both stream, and batch mode. For batch mode you'll need to provide access to S3 bucket where Jitsu will store temporary data batches.