Seagate Technology Holdings plc
Close on Nov 2, 2026Market cap $134.57BP/E 31.2Yield 0.50%
Seagate Technology Average Capacity per Drive by Quarter
Average Capacity per Drive — Total HDD (TB/Drive, through FY2025Q4)
Seagate Technology Average Capacity per Drive: 13 in Q4 FY25, up 39.8% from a year earlier. That is the highest of the 11 quarters on record here.
Where the Q4 FY25 figure comes from
“Capacity Shipped (EB) 114.2 137.5 150.8 143.6 162.5 13% 42% Mass Capacity 103.9 128.0 140.0 132.9 150.9 14% 45% Nearline1 90.1 114.4 125.8 119.7 136.6 14% 52% 10.3 9.6 10.8 10.7 11.5 7% 12% Legacy Average Capacity per Drive (TB) 9.3 10.6 11.6 12.6 13.0 3% 40% Mass Capacity 12.6 14.3 15.0 16.2 16.5 2% 31% Legacy 2.5 2.4 3.0 3.3 3.4 3% 37%”
Source: STX-FQ4-25-Supplemental.pdf ↗
Company-reported average storage capacity per hard disk drive shipped across all HDD units (expanded from 7.3 TB/drive in Q2 FY2023 to 13.0 TB/drive in Q4 FY2025).
Quarterly history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Average Capacity per Drive — Total HDD (TB/Drive, through FY2025Q4) | Year on year | Source |
|---|---|---|---|---|
| Q4 FY25 | Jun 30, 2025 | 13 | +39.8% | STX-FQ4-25-Supplemental.pdf ↗ |
| Q3 FY25 | Mar 31, 2025 | 13 | +44.8% | STX-FQ4-25-Supplemental.pdf ↗ |
| Q2 FY25 | Dec 31, 2024 | 12 | +41.5% | STX-FQ4-25-Supplemental.pdf ↗ |
| Q1 FY25 | Sep 30, 2024 | 11 | +41.3% | STX-FQ4-25-Supplemental.pdf ↗ |
| Q4 FY24 | Jun 30, 2024 | 9 | +45.3% | STX-FQ4-25-Supplemental.pdf ↗ |
| Q3 FY24 | Mar 31, 2024 | 9 | +6.1% | STX-FQ3-25-Supplemental-vF.pdf ↗ |
| Q2 FY24 | Dec 31, 2023 | 8 | +12.3% | STX-FQ2-25-Supplemental.pdf ↗ |
| Q1 FY24 | Sep 30, 2023 | 8 | – | STX-FQ1-25-Supplemental.pdf ↗ |
| Q4 FY23 | Jun 30, 2023 | 6 | – | STX-FQ4-24-Supplemental.pdf ↗ |
| Q3 FY23 | Mar 31, 2023 | 8 | – | STX-FQ3-24-Supplemental.pdf ↗ |
| Q2 FY23 | Dec 31, 2022 | 7 | – | STX-FQ2-24-Supplemental.pdf ↗ |
Breakdown
What makes up average Capacity per Drive
Cite this data
StockData. (2026). Seagate Technology Average Capacity per Drive, quarterly Q2 FY23–Q4 FY25 [Data set]. Compiled from Seagate Technology SEC filings and investor materials. https://stockdatahq.com/stocks/stx/kpis/avg-cap-total
See every metric in the Seagate Technology KPI table. Data updated Oct 29, 2026.