Amazon.com: Intel Genuine Xeon W3530 CPU Computer Processor SLBKR 2.8 GHz 4.8 GT/s 8M 4 LGA 1366/Socket B : Electronics
Intel Xeon W3530 - AT80601000897AB / BX80601W3530
Apple Mac Pro A1289 MacPro5,1 (Mid 2010/Nehalem) Quad Core Intel Xeon W3530 @ 2.8GHz / 6GB DDR 1066MHz SDRAM / 500GB Seagate ST500DM002 HDD / OS X Mountain Lion / ATI Radeon HD 5770