Information technology professionals rely on HP quality to ensure maximum productivity. As the power of applications, processors, memory adapters and storage devices increases, high-end computer users are seeking ways to optimize their system performance. HP provides leading solutions, adding new levels of performance, availability, flexibility, and management. Compatible With HP Designjet 4000 Printer (Q1273A) HP Designjet 4000ps Printer (Q1274A) HP Designjet 4020 1067 mm Printer (CM765A) HP Designjet 4020ps 1067 mm Printer (CM766A) HP Designjet 4500 Printer (Q1271A) HP Designjet 4500mfp (Q1276A) HP Designjet 4500ps Printer (Q1272A) HP Designjet 4520 1067 mm Printer (CM767A) HP Designjet 4520ps 1067 mm Printer (CM768A)