Apple Computer, Mac Pro Quad Core 2.66/2.93/3.33 GHz, Mac Pro Eight Core 2.26/2.66/2.93 GHz,
Apple Order Number, MB871LL/A, MB535LL/A, BTO/CTO,
Model Number, A1298,
Model Year, Early 2009,
Part Name, Processor 2.66 GHz,
Manufacture Part Number, N/A,
Compatible Apple Order Number, MB871LL/A, MB535LL/A, BTO/CTO,
Compatible Model Number, A1289,
EMC Number, EMC-2314,
EEE Code, N/A,
Compatible Apple Computer Family, Mac Pro (Early 2009)
Order you product here:
661-4997 Processor 2.66 GHz for Mac Pro Early 2009 A1298 MB871LL/A, MB535LL/A, BTO/CTO,
661-4997
source
http://info.applepartsellers.com/661-4997-processor-2-66-ghz-for-mac-pro-early-2009-a1298-mb871ll-a-mb535ll-a-bto-cto