HP Promo T5520 800MHZ 64/128 Ce Tc T5520 (Discontinued by Manufacturer) The HP Compaq t5520 Thin Client with Microsoft Windows CE 5.0 delivers a great desktop experience for task-oriented workers Using general office applications or your specific line of business software This reliable client takes you to the next level of thin client computing with expanded options and preloaded software to help you do more