Original 400W Power Supply (L04618 / PA-3401-2HA / PA-3401-1HA) — Fits 280 285 288 480 600 680

This 400W power supply (L04618, PA-3401-2HA, PA-3401-1HA) is designed for use with models 280, 285, 288, 480, 600 and 680. Its metal construction provides long-term durability, and the unit uses environmentally friendly components to support more sustainable computing. Built to deliver stable, efficient power to desktop systems, it serves IT professionals, enthusiasts and everyday users who need a dependable power source. Suitable for both home and office, the PSU maintains energy efficiency while handling tasks from basic computing to intensive workloads, making it a straightforward upgrade to improve system performance.