Rumors
SUMMARY
SanDisk's previously announced 8TB SD and 4TB microSD cards are nearing sample availability, with confirmation at Computex 2026. These cards will carry the SDUC designation, a new SD class for capacities over 2TB, but will only function in SDUC-compatible devices. Both cards will utilize the UHS-I standard, offering a theoretical maximum transfer speed of 104 MB/s. The practical utility of such high-capacity SD cards is questioned, especially given the limitations of the UHS-I standard and the rise of faster formats like CFexpress.
TAKEAWAYS
SanDisk's 8TB SD and 4TB microSD cards are nearing sample release in 2026.
These SDUC cards require devices specifically supporting the SDUC standard.
Both cards will operate on the UHS-I standard, limiting transfer speeds to approximately 104 MB/s.
The high capacity and UHS-I speed may limit their practical use in modern cameras.