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About capacity:

16GB=approximately 14GB-15GB

32GB=approximately 28GB-30GB

64GB=approximately 58GB-60GB

128GB=approximately 115GB-119GB

256GB=approximately 230GB-238GB

512GB=approximately 450GB-500GB

1TB=approximately 880GB-980GB

This is calculation difference between manufacturer(1GB=1000MB) and our PC(1GB=1024MB),please Google Memory card capacity to get more information.

Notice:

1. Our Store offers 100% genuine products.
2. All products are in compliance with the SanDisk official website.
3. Manufacturer’s reserve the right, at their sole discretion, to change or modify products. Appearance and packaging design may change without prior notice.
4. We are not responsible for any changes or modifications that manufacturer’s make to products.

↑↑↑Click to buy Sandisk Mobilemate USB 3.0 Reader

Use the Sandisk Mobilemate USB 3.0 Reader plugged into a USB 3 port. The type of reader you use for speed tests makes a huge difference.

When you used one of the cheap card readers（USB2.0）, the maximum speed was only about 25 MB/s for each card. So make sure you use a reader with a good controller for the test. Otherwise, The speed will not reach the speed of the card itself. So it is not the SD microSD cards that are to blame for the lower speeds, but the “old” hardware that does not support the newer technology.

FOR A1 / A2 CARDS, A NEW CARD READER IS REQUIRED IN ORDER TO APPROXIMATELY REACH THE SPECIFIED VALUES!

Attached is a screenshot of one test achieving：

100% Genuine SanDisk Extreme microSDXC UHS-I Memory Card & USB3.0 Reader

-* Max to 190MB/s read speeds to save time transferring high res images and 4K UHD videos; Requires compatible devices capable of reaching such speeds.

-* Max to 130MB/s write speeds for fast shooting; Requires compatible devices capable of reaching such speeds.

-* 4K UHD and Full HD Ready with UHS speed class 3 (U3) and video speed class 30 (V30).

-* Rated A2 for faster loading and in app performance

Built for and tested in harsh conditions: Temperature Proof, Water Proof, shock Proof and x ray Proof

-* Get the SanDisk memory zone app for easy file management (available on Google Play)

-* High-Performance for flawless 4K video

Extreme speeds for fast transfer, app performance, and 4K UHD video

1.Save time transferring content

Quick read speeds of up to 190MB/s* [100MB/s for 32GB] let you transfer 1000 high-resolution photos and 30 minutes of 4K video (24GB) in less than 3 minutes.

2.Capture frames faster

Capture fast-action photos or shoot 4K UHD video with write speeds of max to 130MB/s.* The SanDisk Extreme microSDXC UHS-I Card lets you shoot more and faster.

3.Great for Capturing 4K UHD Video

Ideal for recording events without skipping frames. The SanDisk Extreme microSD UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with U3 and V30 ratings.

4.Easy File Recovery with RescuePRO Deluxe Software

The card comes with a RescuePRO Deluxe data recovery software download offer. This software makes it easy to recover files that have been accidentally deleted (download required).

5.Durable Design for Use in Extreme Environments

The card is shockproof, temperature-proof, waterproof, and X-ray-proof,so you can enjoy your adventures without worrying about the durability of your memory card.

Legal Disclaimers

* Up to 190MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds.

(1) Transfer to drive up to 10 times faster than standard USB 2.0 drives (4MB/s); USB 3.0 port required. Based on internal testing; performance may be lower depending upon host device.