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Fastest Micro SD Cards: Our Top 9 Picks in 2021

Looking for a fast memory card that can record 4K video and/or shoot action photography without a hitch?

The Micro SD cards on this list are some of the speediest on the market, featuring top-notch read and write speeds that even the pros will love.

So if you’re looking for the fastest Micro SD cards – and the best for 4K video – then you’ve come to the right place.

1. Verbatim 64 GB Pro II Plus 1900x Micro SD

Our Pick
Great for 8K video recording

This Verbatim Micro SD has some of the fastest available read/write speeds.

Incredible read/write speeds
Durable, water-resistant design
V90 video speed class
Not the largest storage capacity

Our first pick is the Verbatim 64 GB Pro II Plus 1900x Micro SD, which offers some of the fastest available read/write speeds. It is a V90 video speed class card capable of 8K video, though it’s also perfect for 4K recording.

In terms of pure speed, the Verbatim Pro II offers read/write speeds of 295 MB/s and 245 MB/s, respectively. It uses the UHS-II interface and is a U3 speed-rated card.

Verbatim 64GB Pro II Plus 1900X SDXC UHS-II V90 U3 Class 10 Memory Card w/Adapter

And the design of this card is robust; it is water-resistant, shockproof, and temperature-proof. Our recommended version packs a decent storage capacity (64 GB).

2. Delkin Devices 64 GB Power Micro SD

Also Great
Best overall read/write speeds

This Delkin Devices cards offers the fastest overall read/write speeds.

Superb read/write speeds
V90 UHS-II video speed class card
Excellent for simultaneous recording
Relatively expensive

Another fantastic high-speed card is the Delkin Devices 64 GB Power Micro SD. In fact, this card actually has slightly faster read/write speeds than the Verbatim but comes in second due to cost.

Like the Verbatim, the Delkin Devices Micro SD is a UHS-II video speed class V90 card, so it’s built for high-resolution video recording. Its read/write speeds are the absolute fastest on this list, at 300 MB/s (read speed) and 250 MB/s (write speed).

Delkin Devices 64GB Power microSDXC UHS-II (V90) Memory Card (DDMSDG200064)

It’s been tested with multiple devices include Nintendo Switch, drones, action cameras, and mirrorless cameras. Plus, for those seeking peace of mind, the card is waterproof, shockproof, and x-ray proof. If you’re willing to pay the price, this is one of the fastest Micro SD cards on the market today.

3. Lexar Professional 1066x 256 GB Micro SD

Great for balance between speed/storage

This Micro SD card from Lexar is a great all-around option with decent read/write speeds and storage options.

Available in many storage sizes
UHS-I and A2 technologies for fast speeds
Durable design for use in harsh conditions
Not a V90 class card

Lexar offers a good range of Micro SD cards, including the powerful Lexar Professional 1066x 256 GB MicroSD.

This is a well-rounded Micro SD card, one that offers a solid balance between speed and storage capacity. Note: This is the 256 GB model, but there is also a huge 512 GB option available.

Lexar Professional 1066x 256GB MicroSDXC UHS-I Card with SD Adapter SILVER Series, Up...

For video recording, this card utilizes UHS-I technology and has read/write speeds of 160 MB/s and 120 MB/s respectively. Thanks to its 256 GB of storage, this Micro SD card can effectively hold 12 hours of 4K video. It’s also well-built and includes an SD card adapter.

4. SanDisk 128 GB Extreme Micro SD

Budget Pick
Great for affordable storage

The SanDisk Extreme is an excellent budget choice that still offers fast read speeds.

Fast 160 MB/s read speed
UHS-III Video speed class V30
Durable temperature-proof design
Not a V90 class Micro SD

SanDisk is one of the leaders in compact storage cards and its SanDisk 128 GB Extreme MicroSD is a fantastic pick. In fact, it’s impressively cheap, while still having a decent amount of speed to its name.

You get 128 GB of storage, which should be enough to store heaps of HD footage. It also has read/write speeds of 160 MB/s and 90 MB/s. For video recording, it is a UHS-III Video Class V30 card, meaning that it is 4K UHD and HD ready.

SanDisk 128GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10,...

If you don’t want to spend a fortune but still want decent storage and fast speeds for video, this SanDisk card is one of the fastest Micro SD cards available on a budget.

5. SanDisk 256 GB Ultra Micro SD

Great for larger storage

The Ultra Micro SD has a larger storage capacity plus fast read speeds.

Excellent storage options
Durable and hardy design
Decent 120 MB/s read speeds
Not the fastest write speeds

The Extreme range may offer faster speeds, but the SanDisk 256GB Ultra MicroSD offers more storage. I’m recommending a 256 GB Micro SD card, but it’s also available in 512 GB and 1 TB versions, all at reasonable prices.

You do get slightly slower read/write speeds, but they’re still relatively fast and can certainly handle 1080p HD video recording. The card has speeds of 120 MB/s and 40 MB/s. It is also a UHS-I-rated card and has an A1-rated performance.

SanDisk 256GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full...

Like other SanDisk cards, it also features a strong design and various resistant qualities for enhanced durability.

6. Samsung EVO Select 128 GB Micro SD

Great storage and speeds

The Samsung EVO is another versatile card offering good read speeds and storage.

UHS-III and Speed Class 10
Decent storage options available
Hardy weather-proof design
Doesn’t have amazing write speeds

The Samsung EVO Select 128 GB Micro SD is a great mid-range option that offers great speeds and a decent storage capacity.

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At 128 GB, it can store many hours of HD video – there are also 256 GB and 512 GB variations available. The price is reasonable, making this another decent budget Micro SD card. For video, you get read/write speeds of 100 MB/s and 60 MB/s.

SAMSUNG: EVO Select 128GB MicroSDXC UHS-I U3 100MB/s Full HD & 4K UHD Memory Card...

It also uses UHS-III Class U3 and Speed Class 10 technologies, which are ideal for HD video transferral. We also like the reliable design – this card is water-proof, magnetic-proof, and temperature-proof.

7. PNY 256 GB Premier-X Class 10 Micro SD

Great for smartphone use

The Premier-X is a great card, with A1-rated app performance for smartphone use.

A1-rated app performance
Great storage capacity of 256 GB
UHS-III V30 speed class for 4K video
The write speeds are not the fastest.

The PNY 256 GB Premier-X Class 10 Micro SD is a high-storage capacity Micro SD that also has fast read speeds.

It is capable of 100 MB/s read speeds and has a decent 60 MB/s write speed. This should be great for HD video recording and will offer a seamless transfer of files to your computer or external device with a card reader.

PNY 256GB Premier-X Class 10 U3 V30 microSDXC Flash Memory Card - 100MB/s, Class 10,...

In terms of performance, it is a UHS-III class 10 V30 speed card. This means it is capable of handling 1080p, 4K UHD video, and RAW photos. It also has A1-rated app performance, which means it is great for use with smartphones.

8. Lexar 256 GB Micro SD

Great all-rounder

This Lexar Micro SD is a well-rounded card with fast read speeds of up to 100 MB/s.

Fast read speeds
Durable, weather-resistant design
A1-app rated for smartphone use
Not the fastest write speeds

Outside of their professional range, Lexar has a basic set of Micro SD cards that still have fast read speeds. One such product is the Lexar 256 GB MicroSD, a great midrange Micro SD that offers a good combination of storage capacity and speed.

This model has ample storage at 256 GB, but there is also a 512 GB and a 1 TB model available too. It is also a UHS-III Class 3 V30 card, so it’s compatible with 4K and HD video. It operates at 100 MB/s (read speeds) and 30 MB/s (write speeds).

Lexar 256GB Micro SD Card, microSDXC UHS-I Flash Memory Card with Adapter - Up to...

At 256 GB, you should be able to fit up to 12 hours of 4K video. It’s also A1-app rated, which should improve its performance with smartphones and tablets. And this Micro SD card is durable; it’s shock-proof, water-proof, and temperature-resistant.

9. Kingston 512 GB Micro SD Canvas Select Plus

Great for large storage

The Canvas Select Plus has an excellent storage capacity, but offers quick read speeds, too.

Great 512 GB storage capacity
Weather-resistant exterior
100 MB/s read speeds
Relatively expensive

Our last pick is the Kingston Micro SD Canvas Select Plus, available with an impressive 512 GB storage capacity. There are faster versions of this card available, but the price increases rapidly for an already premium Micro SD card.

The Kingston Micro SD is a Class 10 UHS-1 spec card and features read/write speeds of up to 100 MB/s and 60 MB/s. It is also a V30 card, so it should have no problem coping with 4K and HD recording.

Kingston 512GB microSDXC Canvas Select Plus 100MB/s Read A1 Class UHS-I Memory Card +...

Each of these Micro SD cards is also tested in harsh conditions and has numerous weather-resistant properties for added durability. Overall, this is a great card that offers excellent storage and fast write speeds.

Which of the Fastest Micro SD Cards Is Right for You?

We hope you’ve found this guide useful. As you can see, there is an excellent range of fast Micro SD cards that are great for 4K video recording. But which is best for you?

If you are after pure speed, the Verbatim 64 GB Pro II Plus 1900x Micro SD and the Delkin Devices 64 GB Power Micro SD are clear winners. They offer the best read speeds and boast decent storage capacities.

Alternatively, if you want a balance between speed and storage, pick a card like the Lexar Professional 1066x 256 GB Micro SD. And if you want a high storage capacity, the Kingston 512 GB Micro SD Canvas Select Plus is a great option.

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