Total Micro: This high quality three prong 90 Watt AC Power Adapter is built specifically for the HP / Compaq Business Notebook 510, 2510p, 2540p, 2730p, 4520s, 6710p, 6930p, 8510p, 8440p, 8540p series and backed by a Lifetime Limited Warranty.
Product Type: AC Adapter; Device Supported: Notebook; Maximum Output Power: 90 W