Full Details from Amazon.com : http://www.amazon.com/gp/product/B00NJ5JHSO?tag=onigi-20
8GB (2 X 4GB) Memory Upgrade for HP Workstation Z210 DDR3 PC3-10600 1333MHz Desktop DIMM RAM
Capacity 8GB Kit 2 X 4GB
Form Factor 240 pin DIMM
Speed PC3-10600 DDR3 1333MHz
Halogen Free ROHS Warranty Lifetime
