Pros: It works great so far. I picked it based on it's specs, which match the specs for the machine.

Cons: I found out after this isn't the one that Kingston recommends for the ZBook. This is the one their search came up with - KTH-X3CL/8G.

Overall Review: Not apparent how this one is different from the KTH-X3CL/8G, but everything is fine so far...