For cameras, especially DSLRs and action cameras, the speed of microSD cards matters a lot. Fast memory cards are a must for optimal performance and smooth video recording in high-resolution.

In this article, I’ve compiled a list of 7 Fastest microSD Cards for 4k/6k/8k Video Cameras.


7 Fastest microSD Cards for 4k/6k/8k Cameras

Here are the 7 Fastest microSD Cards for 4k/6k/8k cameras. This list is based on the sequential write speed – the most important measure for shooting high-resolution 4K video.

Delkin Devices Power V90 microSD Card

  • Brand: Delkin Devices
  • Speed Class: UHS-II, U3, V90
  • Maximum Read Speed: 300MB/s
  • Maximum Write Speed: 250MB/s
  • Storage Capacity: 32GB, 64GB
Delkin Devices 64GB Power microSDXC UHS-II (V90) Memory Card (DDMSDG200064)
  • Tested & Compatible In Android Smartphones, Tablets, The Nintendo Switch, Drones,...
  • Uninterrupted 8K, 4K, 3D, Hdr, 360 Degree & High-Speed Recording
  • Specialized For Simultaneous Recording

Although Delkin Devices isn’t as well-known as some of the other brands on this list, I’ve used the Delkin Devices Power V90 microSD Card and several other cards of this brand. From personal experience, I can say that the SD cards built by Delkin Devices are excellent! Power is one of the fastest microSD cards by Delkin with amazing read speeds up to 300MB/s and write speeds up to 250MB/s. The speed is great for uninterrupted 8K, 4K, 3D, HDR, 360-degree & high-speed recording.

Delkin Power microSD card is Water/Shock/X-Ray Proof, but again it comes in only two storage capacity options – 32GB and 64GB.

ProGrade Digital microSDCard

  • Brand: ProGrade
  • Speed Class: UHS-II, U3, V60
  • Maximum Read Speed: 250MB/s
  • Maximum Write Speed: 130MB/s
  • Storage Capacity: 128GB
ProGrade Digital microSD Memory Card - V60 microSD Card for DSLR and Action Cameras - High Speed Transfer of Files & Large Storage - Up to 250MB/s Read and 130MB/s Write Speed 128 GB
  • Lightning-Fast Speed for Flawless Frames: Our microSD memory cards are engineered...
  • SD Certified UHS-II Compatibility: You might already know of the ProGrade Digital...
  • Optimized For 4k Video: Made for capturing 4k, UHD, and Full HD video... Not only do...

Verbatim is an old and trusted brand of data storage media. ProGrade Digital microSDCard is an awesome and fast microSD card by the brand. With UHS-II interface and V60 rating, it’s capable of providing amazing read speeds of up to 250MB/s and write speeds of up to 130MB/s.

Lexar Professional 1000x microSD Card

  • Brand: Lexar
  • Speed Class: UHS-II, U3, V60
  • Maximum Read Speed: 150MB/s
  • Maximum Write Speed: 90MB/s
  • Storage Capacity: 32GB, 64GB, 128GB, 256GB
Lexar Professional 1000x 128GB microSDXC UHS-II Card w/ Adapter, Up To 150MB/s Read (LSDMI128CBNA1000A)
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Lexar Professional 1000x 128GB microSDXC UHS-II Card w/ Adapter, Up To 150MB/s Read (LSDMI128CBNA1000A)
  • High-speed performance—leverages UHS-II technology (U3) for a read transfer speed...
  • Premium memory solution for sports camcorders, tablets, and smartphones
  • Designed for high-speed capture of high-quality images and extended lengths of 1080p...

Designed for DSLRs, action cameras and drones, the Lexar Professional 1000x leverages UHS-II technology (U3) for an optimum read transfer speed. It’s capable of providing amazing read speeds of up to 150 MB/s and write speeds of around 90 MB/s, making it perfect for high-speed capture of high-quality images and extended lengths of 1080p Full-HD and 4K video.

Lexar Professional UHS-II U3 1000x SD Card backwards compatible and works at the highest UHS-I speeds if your camera supports only UHS-I SD cards.  It comes in multiple sized variants: 32GB, 64GB, 128GB and 256GB.

SanDisk Extreme PRO microSD Card

  • Brand: SanDisk
  • Speed Class: UHS-I, U3, V30
  • Maximum Read Speed: 160MB/s
  • Maximum Write Speed: 90MB/s
  • Storage Capacity: 32GB, 64GB, 128GB, 256GB, 512GB, 1TB
SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA
  • Up to 160MB/s read speeds to save time transferring high res images and 4K UHD...
  • Up to 90MB/s write speeds for fast shooting; Requires compatible devices capable of...
  • 4K UHD and Full HD Ready with UHS speed class 3 (U3) and video speed class 30 (V30)

With top notch read (up to 160 MB/s) and write speeds (up to 90MB/s), the SanDisk Extreme PRO is one of the fastest UHS-I microSD cards. With these speeds, you can smoothly capture burst photos, 4K videos and access many other features of your camera without any hassle.

SanDisk Extreme PRO UHS-I SD Card comes in 16GB, 32GB, 64GB, 128GB, 256GB, 512GB and 1 TB variants. It’s built for and tested in harsh conditions, which is why it’s temperature-proof, waterproof, shock-proof, and X Ray-proof.

Delkin Devices 

  • Brand: Delkin Devices
  • Speed Class: UHS-II, U3, V30
  • Maximum Read Speed: 100MB/s
  • Maximum Write Speed: 75MB/s
  • Storage Capacity: 32GB, 64GB, 128GB, 256GB
Delkin Devices 256GB Advantage microSDXC UHS-I (V30) Memory Card (DDMSDW660256)
  • Tested & Compatible in Android Smartphones, Tablets, the Nintendo Switch, Drones,...
  • Supports 4K & Full HD 1080p Video Recording at High Frame Rates
  • Time-Lapse, Photo-Burst, Protune & HDR Ready

Delkin Devices  256GB V30 microSD Card is a great fit for smooth and uninterrupted 4K & Full HD 1080p video recording at High Frame Rate as well as time-lapse, photo-burst, protune & HDR Ready. That’s because the Delkin’s range has fast read/write speeds of 100MB/s and 75 MB/s, respectively.

This microSD card is Water/Shock/X-Ray Proof and is available in 4 storage capacity options – 32GB, 64GB, 128GB, 256GB.

Samsung EVO Select MicroSD

  • Brand: Samsung
  • Speed Class: UHS-I, U3, V30
  • Maximum Read Speed: 130MB/s
  • Maximum Write Speed: 60MB/s
  • Storage Capacity: 64GB, 64GB, 128GB, 256GB, 512GB
SAMSUNG EVO Select Micro SD-Memory-Card + Adapter, 512GB microSDXC 130MB/s Full HD & 4K UHD, UHS-I, U3, A2, V30, Expanded Storage for Android Smartphones, Tablets, Nintendo-Switch (MB-ME512KA/AM)
  • ALL THE SPACE YOU NEED: Store lots of media on your phone with this micro SD memory...
  • FAST AND SMOOTH: Superfast U3, class 10 rated transfer speeds of up to...
  • EXPAND AND STORE BIG: The EVO Select card ranges from 64GB - 512GB, allowing you to...

Samsung EVO Select MicroSD is great-performance to capture, store, and transfer videos from your camera.The EVO Select card allows you to record, store and share high-quality footage on your camera. It’s waterproof, temperature-proof, shockproof, x-ray proof, so you can basically cannot destroy it and Samsung also gives you 10-Year limited warranty.

Samsung EVO U3 MicroSD is available in 4 storage capacity options: 64GB, 64GB, 128GB, 256GB, 512GB.

Samsung Pro Plus microSD Card

  • Brand: Sumsung
  • Speed Class: UHS-I, U3, V30
  • Maximum Read Speed: 180 MB/s
  • Maximum Write Speed: 130MB/s
  • Storage Capacity: 128 GB, 256 GB, 512 GB
SAMSUNG PRO Plus microSD Memory Card + Adapter, 512GB MicroSDXC, Up to 180 MB/s, Full HD & 4K UHD, UHS-I, C10, U3, V30, A2 for Android Phones, Tablets, GoPRO, DJI Drone, MB-MD512SA/AM, 2023
  • YOUR NEW GO-TO CARD: Capture seamless 4K videos¹ on your compatible phone or drone,...
  • TAKE YOUR BURST SHOT: Fast U3, Class 10 rated read/write speeds up to...
  • ADD SPACE, KEEP IT ALL: Huge capacities of 128GB, 256GB and 512GB give you plenty of...

The SAMSUNG PRO Plus microSD Memory Card emerges as the quintessential choice for tech enthusiasts seeking to elevate their digital experience. Designed to flawlessly capture 4K videos on compatible phones or drones, its expansive storage capabilities also cater to the demands of high-quality videos made on action cameras.

With lightning-fast U3, Class 10 read/write speeds reaching up to 180/130MB/s, this card ensures rapid photo captures and seamless 4K video playback, complemented by its UHS-I, V30, and A2 ratings for superior performance and app storage.


Why Do You Need a Fast SD Card for Your Camera

Let’s take this as an example: You’re recording a high-resolution 4K or even 8K video with your camera, but the microSD card you’re using with it is too slow. In such scenario you may end up facing unexpected hassles like random stopping of video recording or other errors. So, it’s really important that you use a memory card that is compatible with your particular camera model and that it has an adequate speed to ensure smooth and hassle-free video recording.

But what’s an “adequate speed”? To know about it, you should have a basic understanding of the SD Card Speed Class standards. Have a look at the section below.

The microSD cards I’ve presented you today are just perfect for all the action cameras: GoPro, DJI and insta360.


SD Card Speed Class Standards

Recording video requires a constant minimum write speed to avoid ‘frame drop’ or video recording errors while you’re recording. A fast SD card ensures a safe storage of your videos and a smooth playback. The SD Association has defined various Speed Class standards. This is mainly useful for camcorders, video recorders and other devices with video recording capabilities.

There are three kinds of SD Card speed indications:

  1. Speed Class: includes Class 2, 4, 6 and 10.
  2. UHS Speed Class: includes UHS Speed Class 1 (U1) and UHS Speed Class 3 (U3).
  3. Video Speed Class: includes V6, V10, V30, V60 and V90.

These speed classes are labelled on the front side of each SD memory card. The labelling is in the form of little numbers with a circle, a U shape, or a V shape. The manufacturers use these “classes” to determine the speed of the memory card.

Read more on SD card speed class: SD Card Speed Classes Difference Explained.

Have a look at the graphic below to understand the kind of speeds offered by each speed class.

video speed class

Graphic Source: SD Association


Word of Advice

While speed is an important aspect while choosing a microSD card for your camera, it’s not always true that the fastest card is necessarily the best card for your needs. There are other factors that matter too, which may include price, availability and compatibility with your camera model. So, before buying any memory card, I’d suggest you to double check the compatibility of your camera with any SD card that you may want to buy.


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