I just ordered a server blade 
I am glad to help contribute toward charity and glad to own a piece of Warcraft history.
However one question I have that wasn’t answered in the product information on the Blizzard shop is, will the Server Blade’s commemorative case list the realm or realms that were hosted on the particular blade we receive?
Hope to receive a response and thanks in advance for the response!
BUMP, i love to know that too!
Also a couple other questions I have that isn’t in the description… kinda pointless to know since it is a display piece, but still would be fun to know what kind of hardware the server blades are sporting? What kind of CPU(s), how much ram and other specs 
I think the write up made it pretty clear you can’t really attribute realms to specific pieces of hardware anymore.
It’s just a pool of resources.
I think it’s kinda like asking Netflix which equipment is responsible for streaming a specific series or show … “umm, all of it?”
The write up actually answered this one.
These blades were part of the hardware that provided the processing power to run the game from 2010-2016.
“True servers” have been software based for a very long time. These blades come from the era after Blizzard made that upgrade.
The original set of servers that were auctioned were around four per realm if I remember right. One blade hosted Kalimdor, one hosted Eastern Kingdoms, one hosted the chat, and one hosted instances and raids. There was no way to know which blade you got hosted which one. I don’t know if I feel sorry for the guy who got the chat blade or not because he at least got spicy Barrens memes. So he probably still made out all right.
The technology evolved and these blades became capable of hosting entire realms, and multiples of entire realms, on demand. If, for example, Emerald Dream was running at full capacity on Blade A, Blade B would begin hosting Emerald Dream as well. And if Blade B only had half it’s capacity tied up and Blade C couldn’t handle the load from Moon Guard, Blade B could also host Moon Guard on demand.
These blades don’t represent a server, they represent World of Warcraft in its entirety. While it’s nice to have a piece of something you know your character was on, it’s better to have a piece that it was likely on at some point, i.e. one of these blades, than a server blade it was never on.
For example, if I was only able to get a Blackhand server blade, that wouldn’t mean much to me because I never played on Blackhand. Not that I remember anyways. I would spend my days questing to find an Emerald Dream blade and probably spend five or six thousand dollars because ED was one of the most populated servers.
Instead, what I have here is the opportunity to own a blade that ran World of Warcraft itself, and while I will never definitely know that my characters were on it, it is far more likely that at some point in their journey my bits were present on this blade rather than a server-specific blade that I never built characters on.