90W Ultra Slim USB power adapter for HP ProBook 6440b 6445b 6450b 6545b 6550b 6555b Notebook - Original Lavolta charger Slim Thin Laptop AC Adapter - 19V 4,74A (Electronics)
Good idea with the USB port, unfortunately either totally undersized or not with my Nexus 4 (Android) compatible: it takes at least 5 hours until the phone is charged. The power supply itself I really like, especially also because it is so small and
