[mqus]

Great, now I can compare it with other Zsomethings. But as the post shows, thats just one branch of many naming schemes HP employs. Also: This already is a workstation, how could it _not_ be "ultra"? Why the doubling? Or does "workstation" just mean "something I can work with", including office stuff? In that case, I am very interested what other letters they use and what they're for.

[fmajid]

For the same reason there is the Z2, Z4, Z8. There are several tiers of workstations, the Zbook Ultra is the best PC laptop you can get in a non-boat-anchor format, bar none.