FIFO & LIFO Dual-Mode Radio Shuttle Racking System The Radio Shuttle Rack delivers unmatched inventory management flexibility by supporting both FIFO (First-In, First-Out) and LIFO (Last-In, First-Out) stock rotation within the same racking system. With access from both ends of each storage lane, operators can choose the optimal flow strategy based on product type, shelf-life requirements, and warehouse layout — all without reconfiguring the physical rack structure. Dual-Mode