A Guide to SD and microSD Card Types- Kingston Technology (2024)

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Which SD Standard and Capacity Do You Need? Types of SD Cards Types of microSD Cards Memory Cards Related articles A Guide to Speed Classes for SD and microSD Cards Understanding the Naming Conventions and Labels of SD and microSD Cards How to Select the Right Memory Card for Your Use Flash Memory Storage Chart Choosing Storage for Your Android Device Making Your Photography Portfolio Tips for Outdoor Photography The Role of Reliable SSDs in the Media and Broadcasting Industry Enhancing Content Creator’s Workflow with Kingston SSDs and Memory Performance Photographer Ralph Larmann in the Digital Darkroom Overclocking Memory for Adobe Applications File Sizes of Triple-A Game Choosing a Memory Card for Trail Cams Get to know the features of the Kingston Industrial cards Storage for Photographers: Best Practices for Storing and Archiving Images Videographers: Why You Should Consider an SSD and How to Get the Most Out of It Photography in a Snapshot Drone Photography Tips How to Choose Storage for a GoPro Camera Additional Storage for Your Valve Steam Deck Upgrade Your PC to Streamline Your Workflow The Best Storage Options for Gaming Consoles The Best Storage Options for Creatives and When to Use Them How to Choose the Right Memory Card for Your Dash Cam Enterprise Capabilities in the Palm of Your Hand: A Videographer’s Experience with the DC500M A Kingston Gift Guide for STEAM Majors The Kingston Workflow Station Makes Things Easy for Content Creators and Video Professionals Difference between SLC, MLC, TLC and 3D NAND in USB flash drives, SSDs and memory cards How to Choose a Memory Card for Shooting 4K Video How Much Memory Do You Need for Video Editing? Choosing Storage for Raspberry Pi Choosing the Right Memory Card for Your Security Camera Choosing a microSD Card for Your Nintendo Switch Choosing microSD Cards for Your Drone Adventures 7 Easy Tips to Increase Productivity While Working from Home What’s the Difference Between USB 3.1 Gen 1, Gen 2 and USB 3.2? FAQs
A Guide to SD and microSD Card Types- Kingston Technology (1)

Nov 2020

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Memory cards act as electronic storage for your devices storing digital media such as photos and videos. If you have a camera, camcorder, drone or mobile device, chances are you use a memory card.

The SD and microSD variants are most commonly used in smartphones and digital cameras. They fit into everything from your DSLR to your Nintendo Switch but not all cards are created equal — different devices require a different type of memory card.

Which SD Standard and Capacity Do You Need?

A Guide to SD and microSD Card Types- Kingston Technology (2)

The first thing to consider when choosing a memory card is figuring out what type of card your device requires which can usually be found in the instruction manual or on the manufacturer’s website. It’ll usually indicate what SD standard the device requires. Both SD and microSD cards share the same standards: SD, SDHC, SDXC, and SDUC and microSD, microSDHC, microSDXC, and microSDUC.

The two standards that are more popular today for both SD and microSD cards are SDHC and SDXC. The main difference among the SD standards is storage capacity. If you shoot 4K video, you’ll most likely need an SDXC card since it has a maximum capacity of 2TB which is plenty for optimal video recording performance. Additionally, SDXC cards use the exFAT file system to support the large files that can be produced when recording video at high bitrates with cameras like Sony’s a7S III. In comparison, files are limited to 4GB in size with the FAT32 file system used by other card types.

For the average user, a 32GB or 64GB card is more than enough. A mid-sized card should be able to capture hundreds, or even thousands of photos and video clips.

Types of SD Cards

SD memory cards have four SD standards that feature four capacities. The four SD standards are:

Type

Capacity

SD2GB and under
SDHC

More than 2GB, up to 32GB

SDXC

More than 32GB, up to 2TB

SDUC

More than 2TB, up to 128TB

The SD standards are a timeline of the evolution of SD cards with newer cards allowing higher capacities and speeds. SDUC was announced in June 2018 and it’ll be a while before the SDUC cards are available and widely adopted in the industry. Hardware devices that host the memory cards are backward-compatible meaning you can use older standard memory cards in devices that support newer standards like SDXC.

For example, an SDXC-compatible device can use SDXC, SDHC, and SD standard cards. An SDHC-compatible device can use SDHC and SD standard cards but will not be able to use SDXC standard cards. SD-compatible devices are only compatible with SD standard cards. To put it more simply, hardware devices that support newer standards are backward-compatible with older standard cards, but newer standard cards can’t be used in hardware devices that only support older standards.

Types of microSD Cards

MicroSD cards share the same four SD standards as SD cards. The four SD standards for microSD cards are:

TypeCapacity
microSD2GB and under
microSDHC

More than 2GB, up to 32GB

microSDXC

More than 32GB, up to 2TB

microSDUC

More than 2TB, up to 128TB

MicroSD cards are the smaller-sized version of SD cards and the biggest difference between the two is the form factor. They’re also more versatile since they’re often available with an SD adaptor that allows you to use microSD cards in hardware devices that only support SD cards. MicroSD cards are more commonly used to expand the storage system of smartphones, drones, gaming devices and cameras.

Hardware devices are also backward-compatible with microSD cards just like full-sized SD cards. The same rules apply for microSD cards as they do for SD cards. A microSDXC-compatible device will work with microSDXC, microSDHC, and microSD cards. A microSDHC-compatible device will work with microSDHC and microSD cards. A microSD-compatible device will only work with a microSD card. Again, hardware devices that support newer standards are backward-compatible with older standard microSD cards, but newer standard microSD cards can’t be used in hardware devices that only support older standards.

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  • High-Endurance microSD Memory Card

    • For home security, professional surveillance, body and dash cams
    • UHS-I Speed Class 1 (U1) A1
    • 32GB, 64GB, 128GB, 256GB
    • Up to 95MB/s read, 45MB/s write

    Learn moreBuy

  • Canvas Go! Plus SD Memory Card

    • for shooting 4K UHD video and burst-mode photography
    • UHS-I Video Speed Class (V30)
    • 64GB, 128GB, 256GB, 512GB, 1TB
    • Up to 170MB/s Read, 90MB/s Write

    Learn moreBuy

  • Canvas Go! Plus microSD Memory Card

    • for shooting 4K UHD video and burst-mode photography
    • UHS-I Video Speed Class (V30)
    • A2 App Support for Android
    • 64GB, 128GB, 256GB, 512GB, 1TB
    • Up to 170MB/s Read, 90MB/s Write

    Learn moreBuy

  • Canvas React Plus SD Memory Card

    • For industry-standard professional UHS-II cameras shooting in 8K resolution
    • UHS-II Video Speed Class (V90)
    • 32GB, 64GB, 128GB, 256GB
    • 300MB/s Read, 260MB/s Write

    Learn moreBuy

  • Canvas React Plus V60 SD Memory Card

    • For UHS-II cameras shooting in 4K resolution
    • UHS-II Video Speed Class (V60)
    • 128GB, 256GB, 512GB, 1TB
    • 280MB/s Read, up to 150MB/s Write

    Learn moreBuy

  • Canvas Select Plus SD Card

    • For high resolution photos and Full HD videos
    • UHS-I Video Speed Class (V10/V30)
    • 64GB, 128GB, 256GB, 512GB
    • Up to 100MB/s Read, 85MB/s Write

    Learn moreBuy

  • Canvas Select Plus microSD Memory Card

    • 64GB, 128GB, 256GB, 512GB
    • Up to 100MB/s Read, 85MB/s Write
    • UHS-I Speeds
    • A1 App Support for Android

    Learn moreBuy

  • Industrial microSD Memory Card

    • For industrial applications in extreme conditions
    • UHS-I Speed Class U3, V30, A1
    • 8GB, 16GB, 32GB, 64GB
    • 100MB/s Read, 80MB/s Write

    Learn moreBuy

  • Industrial SD Memory Card

    • For industrial applications in extreme conditions
    • UHS-I Speed Class U3, V30, A1
    • 8GB, 16GB, 32GB, 64GB
    • 100MB/s Read, 80MB/s Write

    Learn moreBuy

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A Guide to SD and microSD Card Types- Kingston Technology (2024)

FAQs

Is U1 or U3 better? ›

U1 vs U3 SD Cards

U1 and U3 refer to the write speed of the cards. U1 can write up to 10MB/s while U3 can write up to 30MB/s. That's a big difference considering the size of most image and video files created by contemporary cameras.

What is the difference between V30 A1 and V30 A2? ›

Class (10), UHS-III, and V30 are all about sustained sequential write measurements. A1/A2 is for random read/write measurements. A2 is much faster than A1 at this; 2.6x faster minimum read speeds and 4x faster minimum write speeds.

What is the difference between V30 and V60 and V90? ›

The V30 means the writing speed is 30 MB/s, V60 means the writing speed is 60 MB/s, and V90 implies that the write speed is 90 MB/s.

What is the difference between UHS 1 and UHS 2 MicroSD cards? ›

For example, a UHS-I U3-rated card guarantees a write speed of 30MB/s but has the potential for a read and write speed of up to 104MB/s if used with a device that supports a UHS-I bus interface. A UHS-II compatible card has a potential read and write speed of up to 312MB/s.

Is U3 enough for 4K? ›

Your card choice must have a fast enough write speed to keep up with incoming data. But the choice is easy. SD cards have six different speed classes. Only the U3 class is capable of writing at the speed required for 4K video which is 30MB/s.

Is U1 fast enough for 4K? ›

UHS Speed Class – SD cards

These classes include UHS 1 (U1) and UHS 3 (U3) and support full HD to 4K video formats. UHS classes are used in UHS-compatible devices such as action cams for real-time broadcasts, large-size HD videos, and high-quality professional HD.

What does U3 mean on SD card? ›

Faster SDXC memory cards will have the UHS rating, or Ultra High Speed, represented by a number inside the letter “U.” U1 means it's 10 MB/s; U3 means it's rated at 30 MB/s.

What does A2 mean on SD card? ›

The Application Performance Class 2 (A2) is defined by SD Physical 6.0 specification. It makes SD memory card much higher performance than A1 performance by using functions of Command Queuing and Cache. Efficient flash memory management can be supported by Maintenance functions.

Why are V90 discontinued? ›

In the US, the XC40, XC60, and XC90 accounted for 75 percent of the brand's sales in June. Volvo's lineup in the UK now looks different. The automaker has removed the S60, V60, and V90 from its lineup, citing the growing demand for its SUVs as interest dwindles in its saloons and estates.

Do I really need a V90 SD card? ›

Most DSLR and mirrorless cameras require V90 cards for recording high-resolution video with a higher bitrate. Usually, everything above 4K UHD asks for a faster card. That said, if you never go beyond 4K UHD, there is no need to go beyond the V60 cards as well.

Is lexar better than SanDisk? ›

Are SanDisk SD Cards More or Less Reliable? SanDisk cards are extremely reliable, and generally more so than Lexar Professional cards. However, since they're also more expensive than competitors, some amateurs are reluctant to make the investment in high-end cards.

Is UHS II better than UHS I? ›

UHS-I vs UHS-II: The UHS-I bus interface allows for transfer speeds up to 104 MB/s, while UHS-II boasts significantly higher speeds up to 312 MB/s. This is due to UHS-II cards being designed with two rows of pins, rather than one like UHS-I, which allow for two lanes of data transfer.

Is UHS 1 enough for photography? ›

Casual/regular shooting: Class 10 or UHS-I cards with speeds starting at 30MB/s are sufficient. Enthusiast shooting: UHS-I cards with speeds of 60MB/s or higher are recommended for faster burst shooting and video recording.

Is UHS 3 better than UHS 1? ›

In simple terms, UHS-1 Class 1 has a min write speed of 10MB/s, and Class 3 has a min write speed of 30MB/s, and we're talking also here about increased sustained write speed. This is a significant difference, and especially critical when recording large amounts of data rapidly, as would be the case recording 4K video.

Is the Yamaha U1 better than the U3? ›

Bottom Line: Should You Choose a Yamaha U1 or Yamaha U3? For many pianists, choosing between a Yamaha U1 and Yamaha U3 is a tough choice with two potentially great outcomes. The biggest differences lie in the size and volume, with the bigger U3 offering slightly more overall sound, especially in the bass register.

Why is the Yamaha U1 so popular? ›

Did you know that Yamaha Pianos are the most recorded piano in the world? The Yamaha U1 have a very rich and resonant tone. It's very suitable for not only classical music of any era, but also for jazz, pop and rock. Yamaha has diligently and successfully worked to build a piano with such a robust and versatile tone.

Is the Yamaha U1 worth it? ›

The Yamaha U1 and U3 range are very well made pianos that are built to high standards by Yamaha technicians in their Japanese factories. The pre-owned U1s and U3s are an attractive option for many people because it is possible to get a very high quality, good as new upright piano, for a very reasonable price.

Is U1 enough for Switch? ›

The PNY Elite performance Class 10, UHS-I, U1 microSD Flash Memory card is perfect for the Nintendo Switch.

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