How Does V30 Compare to Other SD Card Speed Classes (V10, V60, V90)?

It’s essential to understand how V30 compares to other speed classes to choose the right SD card for your needs. Here’s a comparison:

V10: A V10-rated SD card guarantees a minimum sustained write speed of 10 MB/s. This speed is typically enough for HD video recording but may not be sufficient for 4K or high-bitrate applications.
V30: As mentioned, V30 cards provide a minimum sustained write speed of 30 MB/s, which is ideal for 4K video recording.
V60: V60 cards offer a minimum sustained write speed of 60 MB/s. These are suitable for 4K video with high bitrates or 8K video recording.
V90: V90 cards provide a minimum sustained write speed of 90 MB/s. These are typically used for high-end video recording, such as 8K video or professional-level production.