Genuine Dell NC912 / 0NC912 220-watt internal power supply reported for configuration-specific OptiPlex 210L, 320, and GX520 desktop systems. Exact-number sources associate NC912 with L220P-00 / PS-5221-5DF-LF labels; KC672, K8965, MC638, and wider small-desktop fitment lists are family or substitution clues only. Conflicting 200W and 220W reseller claims make the actual label essential; the stored record identifies 220W. Power cord, mounting hardware, adapters, cables, and accessories are not assumed included. This inventory record explicitly identifies the condition as New. Match NC912 / 0NC912, complete model/revision, service tag, chassis, wattage label, connectors, pinout, and included items before ordering.