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UHS-I/UHS-II card

UHS is a new ultra high speed bus (data transfer connection) for SD memory cards. There are two versions: UHS-I and a more advanced UHS-II type. This refers to the physical construction of the card and does not directly indicate its speed. There are speed standards for UHS cards: U1 guarantees a minimum speed of 10MB/s, which is suitable for full HD video recording, and U3 guarantees a minimum transfer speed of 30MB/s, which is what you’d need for 4K video.

Memory cards and what to look for

September 1, 2019 by Rod Lawton

Almost all cameras use removable memory cards to store photos and video. A few smaller devices use fixed in-built memory instead, but these are relatively rare. Memory card types Memory cards come in many different types, though many have slowly been phased out and others are very specialised. The most common type is the SD/SDHC/SDXC […]

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