18.5V 3.5A 65W Original AC Adapter Charger Power Supply for HP EliteBook 2540p 2560p 2570p 2730p 2740p 2760p 6930p 8440p - AliExpress
Laplogix Laptop Charger for HP Elitebook 2540P 18.5V 3.5A 65W Adapter with Power Cord Cable - Buy Laplogix Laptop Charger for HP Elitebook 2540P 18.5V 3.5A 65W Adapter with Power Cord Cable