Electronic HP Care Pack Next Business Day Channel Remote and Parts Exchange Service - Extended service agreement - advance parts replacement - 4 years - shipment - response time: NBD - for PageWide Enterprise Color 556dn, 556xh. Increase equipment availability and productivity with round-the-clock onsite and remote support for your HP hardware, as well as selected multivendor equipment. This flexible HP Care Pack Service covers desktops, workstations, servers, storage systems, and network equipment.