Editing SD card (section)

=== Video speed class (V) ===
Video speed class ratings—V6, V10, V30, V60, and V90—specify minimum sustained write speeds of 6, 10, 30, 60, and 90&nbsp;MB/s, respectively.<ref name="sda_video_speed" /><ref name="sda_speed_class" /><ref name="sda_speed_class_consumer">{{cite web |date=11 December 2020 |title=Speed Class Standards for Video Recording – SD Association |url=https://www.sdcard.org/consumers/choices/speed_class/index.html |url-status=live |archive-url=https://web.archive.org/web/20160407123207/https://www.sdcard.org/consumers/choices/speed_class/index.html |archive-date=7 April 2016 |access-date=28 April 2016 |website=sdcard.org}}</ref> These classes are represented by a stylized "V" followed by the number, were introduced to support high-resolution formats like 4K and [[Ultra-high-definition television|8K]], and to align with the performance characteristics of [[Multi-level cell|MLC NAND flash]] memory.<ref name="sd50_video_speed" />