Apple - 661-5063 - Motherboard Dual Processor Xserve 661-5063 - Apple - Dual Processor Logic Board (Motherboard) for Xserve A1279 $1,557.88
Apple - 661-2660 - Motherboard Single Dual 1.0GHz CPU 661-2660 - Apple - Single / Dual 1.0GHz CPU Logic Board (Motherboard) for Xserve G4 $728.81
Apple - 661-5707 - Processor Board Single Socket without CPU 661-5707 - Apple - Single Processor Board without CPU for Mac Pro $790.69 $670.08
Apple - 661-4998 - Motherboard Dual Processor Mac Pro 661-4998 - Apple - Dual Processor System Board (Motherboard) for Mac Pro $606.42
Apple - 661-5062 - Motherboard 2.26GHz CPU Logic Board 661-5062 - Apple - 2.26GHz CPU Logic Board (Motherboard) for Xserve A1297 $1,557.88