32.0GB (2 X 16GB) MAC PRO / XSERVE 2009 MEMORY MATCHED SETOWC 32GB (2 x 16GB) DDR3 SDRAM Memory Kit For Workstation, Server 32 GB (2 x 16GB) DDR3 1066 PC3 8500 DDR3 SDRAM 1066 MHz CL7 1. 50 V ECC 240 pin DIMM Lifetime Warranty VPN: OWC85MP3S9M032K SKU: RSC876422 UPC: 32 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 1066 MHz speed to execute routine softwares at a steady pace 240 pin pin DDR3 SDRAM interface synchronizes electrical and clock