Should i use sdhc or sdxc

These classes are defined by one of four numbers: 2, 4, 6 and It is defined by bus-interface speeds up to Megabytes per second. It comes in two possible numerical marks right now, 1 and 3. If it requires Class 6, then Class 6 and Clas 10 will work. Ok, yes this is all super confusing and convoluted, but important. This becomes increasingly important when you shoot video, and even more so when you are shooting video in 4K.

Identifying the difference between microSD cards in terms of speed is even more complicated. There are no less than six ways to show how fast a card is, and it's not uncommon for manufacturers to use all of them. The Speed Class shows the minimum write speed of a memory card in megabytes per second. There are four Speed Classes to choose from:. Showing the base-level performance differences in microSD cards helps the manufacturer communicate whether a card is suitable for your needs.

Because this attribute tells you nothing about the SD card's maximum possible speed, it's technically possible for a Class 2 card to be faster than a Class 6 card.

Class 10 cards should always be noticeably faster, though, as they have a bus speed of 25MBps compared to Of course, the devil is in the details. We're listing it as a separate category because some manufacturers list both classes on their cards. The two UHS Speed classes are:.

The Application Performance Class specifies a minimum sustained write speed of 10MBps, along with a minimum random read and write speeds measured in input and output operations per second IOPS. This guarantees an acceptable level of performance when storing and running Android apps on your card.

The Application Performance Class is something you can look at when you're planning on installing Android apps on different types of microSD cards. It isn't a necessity, though, as SD cards without the A-rating may still perform adequately. The Video Speed Class sets a minimum sequential write speed, which is essential when shooting video. The higher the resolution of your video, the faster the speed you need. There are five classes for video:. While it's generally safe to assume that a higher Speed Class correlates to faster all-around performance, and UHS cards faster still, some manufacturers also quote a maximum speed for their products.

These speeds are in megabytes per second and help you pick out the absolute fastest microSD cards. However, the speeds are based on manufacturer tests, so they may represent a best-case scenario rather than real-world performance. In practice, other external factors will affect read and write speeds. The other way manufacturers show the speed of their microSD cards is a throwback to the old CD writing days.

The original transfer rate for CDs was KBps. As our technology has improved, microSD card manufacturers would progressively advertise their microSD cards as being 2x, 4x, 16x faster, and so on, showcasing how many times faster than their predecessors they were. You'll often see microSD cards labeled accordingly. When a card is described as x, it means x KBps, which is 15MBps. That finding was, again, likely produced under ideal lab conditions. When you buy a microSD card, it's important to pick one right for its intended use.

You'll have enough space for over photos or minutes of Full HD footage. SDHC cards. View all SDHC cards. SDXC cards. View all SDXC cards. Did this help you? Yes No. How can we improve this page? We only use your feedback to improve the website, we won't respond.