➀ Western Digital reaffirms plans to begin mass production of 36TB HAMR HDDs in 2027, alongside 40TB SMR and 44TB UltraSMR variants.

➁ A final generation of ePMR2-based HDDs, including a 36TB UltraSMR model, will launch in 2024 as a transitional product.

➂ Seagate has already shipped 36TB HAMR drives, securing an early lead, while Toshiba's HAMR roadmap remains undisclosed.