Server blade

A server blade or just blade is a self-contained server on which each World of Warcraft realm runs. Multiple blades fit into an enclosure which provides the power, cooling, connectivity, and management to each blade. The blades themselves contain only the core processing elements, making them hot-swappable. HP refers to the entire package as a BladeSystem. By consolidating and housing multiple servers in a single enclosure, energy costs are significantly reduced, cabling is drastically reduced and managing servers is simplified.

Blizzard has auctioned off retired blades in the past for charity,  including a 15th Anniversary one for the BlizzCon 2019 charity auction.

Trivia

 * Carlos Lucero has the Proudmoore server blade.
 * has the Aegwynn server blade.
 * The have the The Venture Co. (EU) server blade.