This listing describes a flat-packed (ships disassembled for freight) server rack cabinet/shelf unit, referred to in the name as an 'Extreme 5 shelf', bundled with a Power Distribution Unit (PDU) for supplying rack-mounted power outlets. Shipping must be quoted for all cabinets/racks rather than using a standard freight rate, since full server cabinets are large, heavy freight items priced and shipped outside the normal courier network -- standard practice for rack/cabinet hardware. The catalog text doesn't give rack unit (U) height, width/depth, load rating, or PDU outlet count/phase -- worth confirming those specifics before ordering if they matter for your install.