32GB OWC DDR3 ECC PC8500 1066MHz Sextuple Channel kit for Mac Pro & Xserve 'Nehalem' (8x 4GB)
HOT 32GB DDR3 Memory RAM PC3 14900 1866MHz ECC 4Rx4 1.5V 240 Pins LRDIMM Quad Rank for Sumsang Server Ram|RAMs| - AliExpress
IBM EM32 32GB (2 x 16GB) Memory Kit 1066MHz PC3-8500 DDR3 ECC RDIMMs 31F5
Amazon.com: OWC 32GB (4 x 8GB) PC10600 DDR3 ECC-R 1333MHz DIMMs Memory Compatible with Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems and Early 2009 Xserve. : Electronics