Products 1 - 40 of 80 Shop for Drop Slot Safes in Safes & Lockboxes. Buy products such as Ktaxon Home Office Digital Safe Box Depository Drop Deposit Front. Some drop safes have just a slot on the top or side where money is dropped in. There are larger sizes available for an office, and smaller "under counter" sizes. Undercounter Depository Safes - Front Drop Slot Load Prevent Theft and Provide Content Security For Restaurants, Cash Handling Businesses, Convenience.