Prodesk 400g3. Intel Core i5. Ram 4gb. Storage 500gb.With eight total USB ports and optional Bluetooth connectivity, the HP ProDesk 400 G3 becomes a hub for all your devices in the office. HP ProDesk 400 G3 is Tested and ready, The reliable HP ProDesk 400 G3 experienced 120,000 hours of the HP Total Test Process and now has an optional dust filter to help extend the life of your PC by reducing airborne particulate intake in the most demanding work environments.