SanDisk Ultra microSDXC UHS-I 512 GB with Adapter

Adapter: SanDisk Ultra microSDXC UHS-I is a 512 GB memory card for compatible cameras, computers, smartphones and tablets. Its A1 rating is intended to support app use, while the advertised peak read speed depends on compatible hardware and the separately sold reader. Customer feedback is positive about reliability, quality and capacity, but mixed on write speed and value.

At a glance

512 GB capacity for compatible devices that accept microSDXC cards.
A1-rated for app use, with Full HD video support claimed by the listing.
Up to 195 MB/s read speed is claimed for 128 GB–1.5 TB models when used with compatible hardware. The QuickFlow USB-A reader is sold separately.
The listing identifies both a 195 MB/s read speed and a 90 megabytes_per_second media speed. Confirm which performance detail applies to your intended use.

Price

£89.99Save 17%

Reference price: ~~£107.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Large 512 GB capacity for storing files on compatible devices.
A1 rating is a useful fit for compatible Android devices that support apps on a memory card.
Supplied compatibility information names cameras, personal computers, smartphones and tablets.

Technical specifications

16 specifications

Identity
Brand	SANDISK
Model	Ultra microSDXC UHS-I

Computing specifications
Storage listed	512 GB
Card format	Micro SDXC
Read speed listed	195 Megabytes Per Second
Media speed listed	90 megabytes_per_second
Speed class	Class 10
Video speed class	U1
Hardware connectivity	microSDXC
Product features	Class 10, Ultra SDXC
Application performance class	A1

Compatibility and use
Compatible devices	Camera, Personal Computer, Smartphone, Tablet
Claimed video use	Full HD Video

Dimensions and installation
Weight listed	0.26 Grams

Warranty
Warranty type	Limited
Product warranty	10-Year Limited

What to know before buying

Full HD support depends on the host device and file attributes. The listing also calls the product an adapter bundle, but no explicit box inventory is supplied, so check the selected offer for the adapter.

Listing details to confirm

The listing is inconsistent about speed, giving 195 Megabytes Per Second read speed and 90 megabytes_per_second media speed. The 195MB/s claim is conditional on compatible devices and the separately sold QuickFlow reader, and write speeds are stated to be lower. Confirm practical speeds for your device and workload.

Who is it for?

A good fit for

People needing 512 GB of removable storage for a compatible camera, computer, smartphone or tablet.
Android device owners who want an A1-rated card for compatible app use.
Buyers prioritising read-speed claims for file transfers and able to confirm reader and host compatibility.

Less suited to

Anyone who needs a confirmed high write speed for sustained recording or frequent large-file writes.
Buyers who need verified in-box contents or guaranteed performance on a particular device.

SanDisk Ultra microSDXC UHS-I 512 GB with Adapter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 2,406 ratings

5 stars85%85%
4 stars8%8%
3 stars3%3%
2 stars0%0%
1 star4%4%

Customer feedback describes the card as reliable and good quality, with plenty of storage space. Speed and value are mixed, including reports of very slow write speeds and differing views on whether it is worth the price. That distinction matters because the listing's headline speed is a conditional read-speed claim, not a write-speed guarantee. The overall ratings skew strongly positive, but do not settle performance for a particular device or workload.

Positive themes

Customers describe the card as reliable and good quality.
Feedback recognises the generous storage capacity.

Mixed feedback

Speed feedback varies, with some finding it fast enough and others reporting very slow write speeds.
Opinions on value vary, with some considering it worth the price and others finding it overpriced.

Frequently asked questions

Does the card reach 195 MB/s?

The listing claims up to 195MB/s read speed for 128 GB–1.5 TB capacities with compatible devices. It specifies the SanDisk QuickFlow USB-A reader, sold separately, for this claim. Actual performance may vary and write speeds are lower.

Is an adapter included?

The product title mentions an adapter, but no explicit package inventory is provided. Check the selected listing to confirm what is included.

Which devices is it listed as compatible with?

The supplied details name cameras, personal computers, smartphones and tablets. The host device must support microSDXC.

Is it suitable for apps or video?

The card is listed as A1-rated and the listing claims Full HD video support. App performance and video support depend on the host device and the relevant app or file conditions.