GPK Systems 90W DC Car Charger Adapter for HP ProBook 4540S; HP ProBook 4545s; HP ProBook 4740s; HP ProBook 6475b Laptop Notebook Power Supply Cord - Walmart.com
90W HP ProBook 4740s 5220m AC Power Adapter Charger Cord - Adapter&Charger Replacement
HP ProBook 4540s original ac-adapter 90 Watt - sparepartworld.com
65W AC Adaptor Laptop Charger for HP ProBook 4540s 4440s 4530s 4430s 4520s 6570b 6560b 6470b 6550b EliteBook 8460p 8440p 8470p 2540p 8570p 8560p HP 2000-2b09wm 2000-369wm PC Power Supply Cord