Are you looking for the best micro SD card 2021? In this article, we will go through and breakdown the top 5 micro SD cards we found.
 
Our reviews at AnxietyTech are unbiased and based purely on our experience with each product.
 

Best MicroSD Cards

 

MicroSD Card Images

MicroSD Cards

Features

Rating

Price

Samsung MB-MC512GAEU

  • 512GB

  • 4K UHD video

  • Read/write 100/90mb/s

PNY Elite-X

  • 256GB

  • Class 10, U3, V30

  • 100mb/s read speeds

SanDisk Ultra

  • 128GB

  • A1-rated performance

  • 120mb/s transfer speeds

Samsung MB-ME128GAAM

  • 128GB

  • 10 year warranty

  • 100MB/s & 90MB/s read & write

Silicon Power

  • 64GB

  • 5 year warranty

  • UHS-1 Class 10 specifications

1. Samsung MB-MC512GAEU.

Samsung MB-MC512GAEUSamsung is a well-known giant in the tech industry, and this Samsung Evo microSD card doesn’t disappoint with performance and capacity.

You will be getting a micro SD card, along with a very handy SD card adapter, that has 512 gigabytes of memory. This is a lot of memory to have in a tiny little piece of tech, and it can go absolutely anywhere with you.

With the MB-MC512GAEU you will not only get excellent storage capacity, the speeds are going to be extremely impressive. You will have up to 100 and 90 megabytes per second of reading and writing speeds respectively. It also has compatibility with both class 10 and class U3.

This micro SD card has been tested and proven to seamlessly run 4K UHD video and has a wide array of compatibility, and it can be used in Micro SDXC slots.

For under $100 you are not going to be able to find a better performance to price ratio for a Micro SD card on the market.

PROS

  • Fast performance, high transfer speeds
  • Extended compatibility
  • Good for 4K UHD recording
  • Waterproof and shockproof
  • Competitive pricing

CONS

  • Adapter is SDHC and not SDXC

2. PNY Elite-X.

PNY Elite-XThis Elite-X class micro SD card from PNY flawlessly pairs storage capacity and performance. With an ultra-small card that measures only 4.1 x 1.9 x 5.6-inches and weighs 0.56-ounces.

The Elite-X micro SD card features 256 gigabytes of storage that can obtain read and write speeds upwards of 100 megabytes per second. You will be able to transfer your data with lightning-fast speeds so you don’t have to spend hours waiting at your PC.

This is an ideal way to boost the on-board memory for any of your devices, including smartphones, tablets, and computers.

This micro SD card is both class 10 and U3 compatible and is rated A1 when it comes to app launching and performance. It can also easily handle 4K Ultra HD video thanks to the U3 compatibility.

PROS

  • Perfect for 4K videos
  • Shock proof, water proof, magnet proof and more
  • Read speeds of 100mb/s

CONS

  • SD card does get hot when in phones, potential overheat issue

3. SanDisk Ultra.

This micro SD card from SanDisk is going to give you plenty of storage and speed on a budget that is definitely not going to break the bank.sandisk ultra

With your purchase for under $25, you will be getting a micro SD card with 128 gigabytes of storage. It has transfer speeds that can reach 100 megabytes per second under ideal conditions.

The SanDisk Ultra micro SD card features both class 10 and U1 compatibility. This makes it great for transferring 1080p HD video without issues. It is also designed to be the perfect pairing for your Android smartphone or tablet.

This ultra-reliable micro SD card is also going to be shock, temperature, water, and x-ray proof to ensure that your information stays safe.
With a 10-year manufacturer’s warranty, this little piece of tech is a must-have for people on a budget.

PROS

  • Trusted and respected brand
  • Compatible with modern devices
  • Fast read speeds
  • 4K compatible
  • Loads apps faster on Android

CONS

  • Write speed is relatively slow
  • Very small so easy to lose

Samsung MB-ME128GAAM4. Samsung MB-ME128GAAM.

Here we have another offering from Samsung, this time with the smaller sized MB-ME128GAAM micro SD card.

This micro SD card manufactured by Samsung comes with 128 gigabytes of storage in the Micro SDXC format. This is going to be great for everything from PCs to laptops, and even smartphones and tablets.

It is made to take a beating, as it has been rated on a two-meter drop test and is also shock-proof, water-proof, and x-ray proof. Samsung has ensured that this micro SD card is going to last and keep your data secure.

With this purchase, you are also going to receive a regular SD card adapter, which will immediately expand the compatibility of your new card.

You will also have a 10-year warranty from Samsung, so you get peace of mind with your purchase.

PROS

  • UHS-1 Class 10 specifications
  • Come with a SD card adapter
  • 5-year limited warranty
  • Nintendo Switch compatibility

CONS

  • Write speed isn’t as fast as stated

5. Silicon Power 64GB 3D NAND.

Silicon Power has produced a micro SD card that is not only ultra-affordable, it is also extremely versatile.Silicon Power micro SD card

This micro SD card from Silicon Power features 64 gigabytes of storage capacity, which isn’t huge, but for a little over $10, it is quite a bargain. It can give you read and write speeds up to 100 megabytes per second for extremely fast data transfer.

You will be getting a card that has class 10 and U1 compatibility for 1080p HD video, as well as an SD card adapter to give you even more options.

One of the best parts about this card is that it is compatible with the Nintendo Switch. This makes it a very inexpensive way to boost your on-board memory for the console.

With a five-year limited warranty, and considering the price, this micro SD card is going to be a great buy.

PROS

  • Works with many devices and smartphones
  • Fast read speeds
  • Comes with SD adapter
  • 4K video compatibility

CONS

  • Speeds are tested as lower than advertised

Which is the fastest microSD card?

SanDisks’s fastest UHS I microSD cards are the U3-rated Extreme PLUS line. They offer the fastest read speeds and are great to store downloaded games on Android phones or to increase your general storage capacities.

Is SanDisk better than Samsung?

When picking SD and microSD cards they have minimal differences when picking between SanDisk and Samsung. For secure digital extended capacity SanDisk offers the more durable option. The called transfer speed of both is close to equal. Both can offer ultra high speed options.

Is there a difference between microSD and micro SDXC?

The differences between the formats are quite large. microSD works in any microSD slot and has storage sizes up to 2GB. microSDXC can store up to 2TB but only works in SDXC slots. Both offer a variable speed rating but for things like gaming consoles and storing your downloaded games you’ll want SDXC.

Do 2TB Micro SD cards exist?

2TB is the maximum size offered in a flash memory card. You need to check which microSD card slot is used as it varies for different internal storage options. It’s great for those that need extra storage for things such as game data or even shooting high resolution video.

Is SanDisk Extreme or Ultra better?

SanDisk Extreme is the big brother to the Ultra and provides higher read and write speeds. MicroSD Cards vary alot and the extreme provides a secure digital high capacity option with a good read speed and a high maximum write speed. The Extreme is a good choice for recording video and offers a top tier video speed class. It maintains a minimum write speed, whilst being a reliable microSD card.

What features should you look for before buying a microSD card?

  • Transfer speed
  • Maximum read speed

What are some alternatives?

  • Samsung Evo Select
  • SanDisk Extreme Pro UHS II Card
  • Lexar Professional 1066x

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