SanDisk Extreme 32GB Micro SDHC Card Review – UHS-I (3)

Today, we will be taking a look at the SanDisk Extreme 32GB Micro SDHC Card UHS-I(3). It offers super fast speed of 90 MB/sec, which they claim is 600x the performance of a standard SD card. This particular range of SD cards from SanDisk – the “Extreme” series are aimed at the pro-consumer who wants to have a fast enough SD card to that they can record HD (1080p) and even 4K videos on their actions cams. Of course, not only that … you can also use it for your digital cameras, smartphone or tablet too.


Micro SD cards for storage can be found on most smartphones, digital cameras, tablets and action cams. Back in the early days, most users would just purchase any old SD card for their devices, without having to worry about performance. In today’s action-packed society this is no longer the case. You can now purchase SD cards that offer better performance and read/write speeds for their devices, especially when recording HD (1080p) and even 4K videos. A bog standard SD card will not be able to cope.


IMG 7085



Before we go any further … take a look at the speed classes of SD cards available on the market. The SanDisk Extreme 32GB Micro SDHC Card falls under UHS-I class 3, which is ideal for still images, photos, full HD videos, 3D videos and 4K videos too. So what is UHS-I ? … UHS-I stands for Ultra High Speed I, and currently there are SD cards that will fall into class 1 and class 3. See below.


ushi speeds


We’ll be giving the SanDisk Extreme 32GB Micro SDHC Card UHS-I(3) a quick test using ATTO Disk Benchmark, Crystal Diskmark and Anvil Disk Utilities. SanDisk are a decent brand, so we expect the card to produce scores which reflect what they say on the packaging … “Speed upto 90 MB/sec”. OK let’s start by taking a look at the features and specifications …

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Winston has over 20 years of experience in the I.T. Industry. He launched Funky Kit with the aim to capture a wider audience worldwide. His knowledge in PC hardware is very distinguished, not only publishing enjoyable reviews but also writing great articles.