# SanDisk Extreme 1TB microSD Card + Adapter

Source: https://www.ranked10.co.uk/tech/best-1tb-microsd-cards/sandisk-extreme-microsd-1tb
Ranked #3 in "Best 1TB microSD Card 2026: 10 Ranked, Read vs Write": https://www.ranked10.co.uk/tech/best-1tb-microsd-cards

- Price: £157.99 (checked on Amazon UK on 2026-09-15)
- Amazon rating: 4.7 from 101,077 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B09X7MPX8L?tag=ranked10-21

The SanDisk Extreme 1TB is the number three card in this guide, at £157.99. That is £113 less than the 900 MB/s Lexar PLAY PRO at the top, and the two cards are not doing the same job: the Lexar's 900 MB/s applies only in a microSD Express slot, while this SanDisk is a UHS-I card — the listing's own Model Name reads "UHS I" — running at UHS-I speeds in a console, camera or drone.

The SanDisk Extreme 1TB is also where this guide's problem appears twice on one page. One bullet promises "Up to 130MB/s write speeds for fast shooting"; the spec table on the same listing gives "Media Speed: 20 megabytes_per_second". Write speed is what a camera, drone or handheld actually lives with, and this listing carries both a 130 MB/s claim and a 20 MB/s figure without reconciling them. The 190 MB/s read figure comes with its own condition in the next bullet: maximum speeds need the SanDisk Professional PRO-READER SD and microSD, which is sold separately. Everything on this page — price, specs, rating and review counts — is taken from the Amazon listing for this card, not from testing we carried out.

## Specification

| Field | Value |
|---|---|
| Price | £157.99 |
| Rating | 4.7 out of 5 from 101,077 ratings |
| Stated read speed | Up to 190 MB/s, powered by SanDisk QuickFlow Technology |
| Stated write speed | Up to 130 MB/s (listing bullet) |
| Media Speed | 20 megabytes_per_second (spec table) |
| Speed classes | UHS Speed Class 3 (U3), Video Speed Class 30 (V30), Class 10 |
| App performance | Rated A2 for faster loading and in-app performance |
| Capacity and format | 1 TB, microSDXC |
| Maximum speed requires | SanDisk Professional PRO-READER SD and microSD (sold separately) |
| Item dimensions (as listed) | 16D x 10W x 5H centimetres |

## Questions people ask

**Why does the listing give two different write figures?**

One bullet on the SanDisk Extreme 1TB listing says "Up to 130MB/s write speeds for fast shooting", while the spec table on the same listing says "Media Speed: 20 megabytes_per_second". Both numbers come from the same Amazon page and we cannot say which applies in your device.

**Does the SanDisk Extreme 1TB reach 190 MB/s read?**

The listing states offload speeds of up to 190 MB/s with SanDisk QuickFlow Technology, but the next bullet adds that maximum speeds are achieved with the SanDisk Professional PRO-READER SD and microSD, which is sold separately.

**Will it record 4K video?**

The listing describes the card as 4K UHD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30).

**What devices does SanDisk list it as compatible with?**

The listing names action cameras, digital cameras, tablets, Android smartphones and drones.

**What is the A2 rating for?**

The listing says the SanDisk Extreme 1TB is rated A2 for faster loading and in-app performance, and gives no separate figure for that.

**How do buyers rate it?**

4.7 out of 5 from 101,077 ratings. The histogram breakdown on the listing shows 83 at five stars, 13 at four, 3 at three and 1 at one star.