Apple Mac Pro 1066 or 1333 MHz ECC Memory

Hira Haque iCAP - Mac for Life +8801615499089 FEATURES - 240Pin DDR3 ECC Unbuffered Dual In-line Memory Module (ECC UDIMM) - Genuine Samsung, Hynix or Micron Chips - 4GB Kit - 72-bit wide, Error Correcting Code (ECC) - PC3- 1333MHz - JEDEC Standard Specification - Lifetime Warranty COMPATIBLE MODELS * This 1333MHz memory kit is also backward compatible with 1066MHz Mac Pro system Early 2009 Models (Model ID: MacPro4,1) - 2.66GHz Quad Core (one 2.66GHz Quad Core) - 2.93GHz Quad Core (one 2.93GHz Quad Core) - 3.30GHz Quad Core (one 3.30GHz Quad Core) - 2.26GHz 8 Core (two 2.26GHz Quad Core) - 2.66GHz 8 Core (two 2.66GHz Quad Core) - 2.93GHz 8 Core (two 2.93GHz Quad Core) Mid 2010 Models (Model ID: MacPro5,1) - 2.8GHz Quad Core (one 2.8GHz Quad Core) Intel Xeon "Nehalem" Processor - 3.2GHz Quad Core (one 3.2GHz Quad Core) Intel Xeon "Nehalem" Processor - 2.4GHz 8 Core (two 2.4GHz Quad Core) Intel Xeon "Westmere" Processor - 3.33GHz 6 Core (one 3.33GHz 6 Core) Intel Xeon "Westmere" Processor - 2.66GHz 12 Core (two 2.66GHz 6 Core) Intel Xeon "Westmere" Processor - 2.93GHz 12 Core (two 2.93GHz 6 Core) Intel Xeon "Westmere" Processor