Description
SanDisk Ultra microSD Card
The card most people actually need
Not every device needs a speed-rated card – most just need room that won’t run out.
If your phone keeps warning you about storage, or your tablet’s photo library is bumping up against its limit, the SanDisk Ultra microSD card is the straightforward fix. It runs from 32GB to 1TB and carries an A1 rating, which just means apps installed on the card open noticeably faster than on a card without that rating.
Available capacities: 32GB | 64GB | 128GB | 256GB | 512GB | 1TB
Running Out of Space on Your Phone or Tablet?
Photos, downloaded shows, and a growing list of apps all compete for the same limited storage. Moving them onto a card frees up the phone’s own memory – SanDisk rates A1 performance at up to 1,500 read IOPS and 500 write IOPS, which is what actually determines how snappy an app feels when it’s running from the card.
Common uses:
- Photo and video libraries
- Downloaded music and shows
- Installed apps and games
- General file storage
Good for Everyday Photos – Not Built for 4K
For holiday snapshots and standard video, this card holds up fine. If you’re shooting 4K on a regular basis, or using an action camera or drone, it’s worth stepping up to our SanDisk Extreme or Extreme PRO cards instead – Ultra simply isn’t rated for that sustained write speed.
Choose Your Capacity
| Capacity | Best For | Recommended Use |
|---|---|---|
| 32GB | Basic storage | Photos, music, light app use |
| 64GB | Everyday users | Smartphones, standard photography |
| 128GB | Regular use | Larger photo and app libraries |
| 256GB | Heavier users | Extensive photo and media storage |
| 512GB | Media libraries | Offline movies, music and large app libraries |
| 1TB | Maximum storage | Users who rarely want to manage storage at all |
Tip: if you regularly shoot 4K video or use action cameras/drones, consider a SanDisk Extreme or Extreme PRO card instead – Ultra is built for everyday use, not sustained high-speed recording.
SanDisk Ultra microSD Card Specifications
| Specification | 32GB | 64GB | 128GB | 256GB | 512GB | 1TB |
|---|---|---|---|---|---|---|
| Interface | UHS-I | UHS-I | UHS-I | UHS-I | UHS-I | UHS-I |
| Read Speed | Up to 120MB/s | Up to 120MB/s | Up to 150MB/s | Up to 150MB/s | Up to 150MB/s | Up to 150MB/s |
| Speed Class | Class 10 | Class 10 | Class 10 | Class 10 | Class 10 | Class 10 |
| UHS Speed Class | U1 | U1 | U1 | U1 | U1 | U1 |
| Application Class | A1 | A1 | A1 | A1 | A1 | A1 |
The published speed figures are maximum sequential speeds based on SanDisk’s internal testing; actual performance can vary depending on the host device, interface and usage conditions.
Why Choose SanDisk Ultra microSD?
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A1 RatedFaster app load times on compatible Android devices.
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Up to 150MB/sRead speeds up to 150MB/s on 256GB and above.
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Up to 1TBChoose from 32GB up to 1TB.
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Durable DesignDesigned to withstand shock, temperature, water and X-ray exposure.
Which SanDisk Ultra microSD Capacity Should You Buy?
32GB — Basic Storage. A light option for photos and a modest app library.
64GB — Everyday Choice. A popular capacity for general smartphone use.
128GB — Regular Use. Comfortable headroom for photos, apps and media.
256GB — Heavier Use. For users with large photo libraries or many apps.
512GB — Media Libraries. Good for offline movies, music and large app collections.
1TB — Maximum Capacity. For users who want to stop thinking about storage entirely.
Product Details
- Product
- SanDisk Ultra microSD Card
- Capacities
- 32GB / 64GB / 128GB / 256GB / 512GB / 1TB
- Interface
- UHS-I
- Speed Class
- Class 10, U1
- Application Class
- A1
- Maximum Read Speed
- Up to 150MB/s, depending on capacity
- Warranty
- 10-year limited warranty
Every SanDisk Ultra microSD card we sell is genuine stock, checked against our own inventory before it ever reaches a customer. Looking for other capacities or SanDisk models? Browse our full range of Memory Cards.

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