Sun's UltraSPARC IV+ 64-bit processor is the fifth generation in the UltraSPARC processor family. The UltraSPARC IV+ processor features a design that's much improved over the UltraSPARC IV processor - including enhancements to its dual-cores utilizing the latest 90nm process, which enables frequency improvement through smaller transistor sizes.Sun's UltraSPARC IV+ processor provides a unique combination of real world application performance and exceptional product quality for mission-critical enterprise, High Performance Technical Computing (HPTC), and other compute-intensive applications.This upgrade kit includes new Mother Board.