48GB OWC Mac Pro / Xserve 2009 Memory Matched Set (3x 16GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules by OWC

Fast, Premium-Quality Memory Upgrades for Mac
Made for Mac, rigorously lab tested, OWC certified & guaranteed for life, to deliver
the maximum in compatibility, performance and reliability.

• Compatible with Mac systems: Mac Pro 8-Core (Mid 2010 Model ID: MacPro5,1 2.4GHz), Mac Pro (Mid 2010 Quad-Core Model ID: MacPro5,1 2.8GHz, 3.2GHz, 3.33GHz), Mac Pro (Early 2009 8-Core Model ID: MacPro4,1 2.26GHz, 2.66GHz, 2.93GHz), Mac Pro (Early 2009 Quad-Core Model ID: MacPro4,1 2.66GHz, 2.93GHz, 3.33GHz), Xserve 8-Core (Early 2009 Model ID: Xserve3,1 2.26GHz, 2.66GHz, 2.93GHz), Xserve Quad-Core (Early 2009 Model ID: Xserve3,1 2.26GHz)
• 
  PC Desktops
  Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.
   
  IMPORTANT OWC NOTE:
  OWC p/n OWC1333D3MPE8GB (8GB modules) and OWC1333D3MPE16G (16GB modules) require that all installed modules be of the same p/n OWC 8GB and/or 16GB modules. Other existing Apple or 3rd party 1GB, 2GB and 4GB modules are not supported for use with these kits and need to be removed when these modules are added.