working used PA-12 DELL laptop AC Adapter, 65w official genuine charger (not fake). This has the small round barrel tip for the newer DELL laptops not the older type with the larger tip. tested and found to be working, refer to photo showing it detects correctly as 65w you are getting the ac adapter block only, doesn't include the power lead) if you are being this to replace yours then you simply use the lead from your old charger.
