Brain - Apple’s rack-mounted Mac Pro variant is now available to order
Key Highlights

Apple's new Mac Pro has been available in a standard desktop tower configuration

But Apple is selling its promised rack model that's designed to be mounted in server rack setups starting at $ 6,499, an extra $ 500 over the regular model

The first is the different case

Style vents and aluminum handles

The second is the $ 500 premium Apple charges for the rack model compared to the tower model with all other specs being equal, the rack model will still cost more

The rack-mounted Mac Pro also includes a set of rack-mounting rails (which Apple notes ship in a separate box), which might explain the $500 premium that Apple's charging here

Mac Pro is available to order now

The Verge