Apple has already launched three new MacBooks this year, but one more model rumored for this fall—MacBook Ultra—could make for Apple’s largest lineup of MacBooks ever.

MacBook Ultra would give Apple four distinct MacBook models, the most ever

It’s been a big year for the Mac. Apple launched MacBook Air and MacBook Pro models with M5 chips in March, plus the all-new MacBook Neo.

With MacBook Neo, Apple expanded its MacBook lineup to three models—tying the previous most.

But a fourth member of the MacBook family might arrive later this year.