Need help with Dock (port replicator) for HP ZBook 15 G4

[floppydisc]

Hi,

I just got a HP ZBook 15 G4. Realizing there are no more docking stations for this laptop I am looking at ta port replicator dock.
I believe this document describes the options:
http://www8.hp.com/h20195/v2/getpdf.aspx/c04834949.pdf

Am I concluding correctly that that I could use either
HP ZBook Thunderbolt 3 Dock
or
HP Thunderbolt™ Dock G2
?

If so, is there any relevant difference?

[Huffer]

Ultraslim Dock still works with the Zbook 15 G4 and I have one set up with a Zbook 15u G4 for one of my employees and then I have a Thunderbolt 150W with my own Zbook 15 G3, Both setups are driving dual 4k monitors so no serious performance complaints. The Thunderbolt has caused some support traffic here as folks struggle to get it working right but the Ultraslim was pretty much plug and play. I found a used one on eBay for under $50 and it has been chugging along for 6 months or so without a problem. My Thunderbolt dock will occasionally get a bit finicky on me and drop a USB port until power cycled or something like that. Never used the "trash can" shaped Tbolt G2 dock but we have had a bit of support traffic on it, though. Seems to have the same ports as the rectangular Thunderbolt dock. 

https://www.ebay.com/itm/HP-2013-UltraSlim-Docking-Station-D9Y32AA-ABA-VGA-USB-3-0-65Watt-AC-ADAPTER...

[floppydisc]

Is there a differnce between the u and non-u model?

Mine looks like this  underneath:

[Huffer]

My bad you are right. The 15u has a dock port on the side and the plain 15 mobile workstation does not so looks like you have to use the Thunderbolt solutions. 

[floppydisc]

No worries. i appreciate your help.

Is it possible as simple as the G3 is newer than the G2 model?

[Huffer]

You have a G4. Yes newer laptops will likely not work with older docks. 

[floppydisc]

That is where my confusion is comming form. You woudl think G3 is newer than G2. But when I google it I find for G2 only 2018 posts. vs. the the G3 ealrier.

[Huffer]

Sorry I am not understanding the dilemna. A Zbook 15 G2 uses 4th gen Intel Core and G3 uses 6th and G4 I think uses 7th so the higher the G (generation) the newer the laptop. 

[floppydisc]

???

I am aksing about the docking station/port replicaotr for a HP ZBook 15 G4.

[Huffer]

You mean the round trashcan device? Its G2 and is newer than the Thunderbolt 3 rectangular docks. However, they use essentially the same hardware so not really a different hardware generation. HP just decided later to package it in the round trash can form factor.