Rank #9 in Best 512GB MicroSD Card 2026: 10 Ranked, and Why Read Speed Misleads
Integral Premium High Speed 512GB microSD Card
Price and rating as shown on Amazon when we collected them. Both change.
The Integral 512GB MicroSD Card Premium High Speed is the ninth card in this guide. Integral's own bullet points put it at up to 100 MB/s read and up to 50 MB/s write, which is the same two-to-one gap the rest of the list shows: the headline read figure comes from offloading through a separate reader, while the 50 MB/s write figure is the one that decides whether 4K footage records without dropping frames.
The listing disagrees with itself twice. The model number is INMSDX512G-100/80V30, and nothing on the page explains what the 80 refers to when the bullets and the spec table both say 50 MB/s write. The app-performance rating also appears twice with different values — the bullet promises an A1 rating, while the Product Features line lists A2 next to V30, U3, UHS-I and C10. Everything on this page is taken from the Amazon listing as it stands, not from a card we tested ourselves.
How those 55,255 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £68.95 |
|---|---|
| Rating | 4.6 out of 5 from 55,255 ratings |
| Advertised read speed | Up to 100 MB/s |
| Advertised write speed | Up to 50 MB/s (bullets and spec table) |
| Model number | INMSDX512G-100/80V30 |
| Speed class | UHS-I, U3, Class 10, V30 |
| App performance rating | A1 in the bullet points, A2 in the Product Features spec (as listed) |
| Capacity and format | 512 GB, microSDXC |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Good quality SD Card - very fast speeds and come is original packaging”
Verified purchase“So far, no issues at all. I purchased this 64GB microSD card for our Tapo doorbell and it seems to do the job perfectly.Connection and installation were really easy and straightforward, with no complications during setup. It's been working reliably for us so far and does exactly what we needed it for.Very happy with the purchase and would happily recommend.”
What it is up against
The rivals it was ranked against in Best 512GB MicroSD Card 2026: 10 Ranked, and Why Read Speed Misleads.
Questions people ask
What write speed does the Integral 512GB microSD claim?
Both the bullet points and the spec table state up to 50 MB/s write, against up to 100 MB/s read.
Does the model number match the advertised speeds?
The model number is INMSDX512G-100/80V30. The page states 50 MB/s write nowhere near that suffix, and no part of the listing explains what the 80 stands for.
Is this card rated A1 or A2?
Both, depending on which part of the page you read. The bullet says 'A1 rating for reliable app performance'; the Product Features spec line lists 'V30, U3, A2, UHS-I, C10'.
Is it suitable for 4K video?
Integral states UHS-I, U3 and Class 10 for 'seamless 4K UHD and Full HD video recording', and the spec table adds V30 and '4K Ultra-HD video ready'.
Which devices does Integral list as compatible?
The bullets name smartphones, tablets, drones, action cameras and game consoles; the spec table names Action Cameras, Dash Cameras, Gaming Console, Smartphone and Tablet.
What warranty is listed?
The spec table gives Warranty Type as 'Limited'. No warranty period is stated on the page.
Comments
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