ECC REGISTERED UPGRADE: This type of memory is used in Workstations and Servers. It will NOT be compatible with standard desktop computers. Also, it cannot be mixed with UNBUFFERED memory.
OWC 64GB UPGRADE: Consists of 4pcs of 16GB DDR3 1600 PC3-12800 CL11 2Rx4 240-pin 1.5V ECC Registered DIMM Memory RAM Module Upgrade compatible with HP Workstation model Z820.
INDUSTRY LEADING: Consumer-friendly Advanced Replacement Program and Limited Lifetime Warranty, which includes Free Tech Support by Other World Computing.
MAXIMIZE YOUR SERVER: With OWC's ECC Registered Server Memory, you will extend the life of your old infrastructure or save money when building a new one.
Replacement for HP part numbers 672612‐081, 672612‐181, 672631‐B21, 672633‐B21, 684031‐001, 684066‐B21, 687465‐001 and A2Z52AA.