IMPORTANT: Your Mac Pro can use ECC Unbuffered or ECC Registered Memory, but they cannot be combined. Please remove all Unbuffered Memory when installing these Registered DIMMS.
OWC 64.0GB UPGRADE: Consists of Four16GB DDR3 1866MHz PC3-14900 CL13 ECC Registered DIMMs 1.5V 240-pin Memory Module with Mac qualified Thermal Sensor EEPROM
100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed All MAC Specifications for Mac Pro 2013 6, A1481 - 2630
COMPATIBLE WITH: Mac Pro 2013 ram Model ID: MacPro6,1 3.7GHz 4-Core Xeon & 3.5GHz 6-Core Xeon & 3.0GHz 8-Core Xeon & 2.7GHz 12-Core Xeon
INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing