Spotted: Mac Studio with M3 ultra 256GB RAM and M4 Max with 128GB RAM

5th August 2026

A couple of Mac Studio models that are not available from Apple have been seen on Amazon.com for immediate delivery, but both have only 1 left in stock.

The Mac studio with M4 Max and 128GB of memory is at this link. This is double the unified memory of the M4 Max Mac Studio that Apple currently sells due to memory shortages.

The Mac studio with M3 Ultra and 256GB of memory is at this link on amazon. This is double the maximum RAM of the M3 Ultra Mac Studio that Apple currently sells.

I'm guessing that these units are unsold units from resellers, because their condition is labelled as new. If they were returns they've have to be labelled as refurbished, or "renewed", as Amazon likes to call it. They won't stay for long, as models with greater RAM won't be coming to Apples Mac Studio lineup until later in the year.

For a table of up-to-date prices of Mac Studios, Nvidia DGX Sparks and AMD AI Max+ 395 desktop machines, see the AI PC/Mac page at GPUQuicklist.com