Electronic HP Care Pack Premium Care Service - Extended service agreement - parts and labor - 3 years - on-site - 9x5 - response time: next day - for ProBook 640 G2, 640 G4, 640 G5, 640 G8, 645 G4, 650 G2, 650 G4, 650 G5, 650 G8. Hewlett-Packard takes great care of its customers - that's why it provides you with reliable and high-class service to make you feel comfortable whenever you buy HP products. The company offers a full range of services and supports to make you feel even more comfortable.