Intel Xeon processor – 2.66GHz (Prestonia, 533MHz front side bus, 512KB ATC cache, FC-PGA2, 604-pin) – Note: Second processor must be the same speed and cache size as the first

Intel Pentium 4 Xeon processor kit – Includes 2.66GHz processor (533MHz front side bus, 512KB L2 cache), tower & active heatsink assemblies, voltage regulator module, and instructions – Note: 2nd processor must be the same speed and cache size as the 1st