Best SD Cards For Steam Deck
Expert recommendations based on ASUS ROG Ally specifications
Recommended Spec
microSD UHS-II (V30 or faster)
The original ROG Ally has a UHS-II microSD reader, so a UHS-II card loads games faster than a UHS-I card. Early units had a reader that overheated cards; keep the BIOS and firmware updated.
Contains affiliate link
#1 Top Pick for ASUS ROG Ally
View Top Recommendation
Check Price
Official ASUS ROG Ally SD Card Requirements
-
Format: microSD UHS-II
-
Minimum Speed: V30 (30 MB/s write)
-
Maximum Capacity: Up to 2TB
Why these requirements? The ROG Ally has a UHS-II microSD reader. A UHS-II card reads games faster than UHS-I, and an A2 rating helps with the small random reads games make while loading. Update the BIOS: ASUS released fixes for the card reader overheating that affected early units.
Detailed Specifications
Type
microSD UHS-II
Min Speed Class
V30
Write Speed
30 MB/s
Recommended Size
256GB, 512GB, 1TB
Max Capacity
2TB
Top SD Card Recommendations
This website contains affiliate links. We may earn a small commission when you purchase through our links at no extra cost to you.
| SD Card | Verified | Speed Class | Write Speed | Pros | Price |
|---|---|---|---|---|---|
SanDisk microSD for ROG Ally
|
V30 | Up to 130 MB/s |
|
$$ Check Price | |
|
SanDisk Extreme microSD
Full Review
|
V30 | Up to 130 MB/s |
|
$ Check Price | |
Kingston Canvas Go! Plus
|
V30 | Up to 90 MB/s |
|
$ Check Price |
Compare These Cards
Open in full compare toolSee how the recommended cards for ASUS ROG Ally stack up side by side, or swap in any other card.
recommended
View on Amazon
SanDisk microSD for ROG Ally
$$ · Premium- UHS RatingUHS-I
- Speed ClassV30
- App PerformanceA2
- Read SpeedUp to 190 MB/s
- Write SpeedUp to 130 MB/s
- EnduranceStandard
Available Capacities512GB, 1024GB
Pros
- ASUS-licensed version of the SanDisk Extreme
- in 512GB and 1TB.
Cons
- Costs more than the standard Extreme with the same specs.
recommended
View on Amazon
SanDisk Extreme microSD
$ · Mid-Range- UHS RatingUHS-I
- Speed ClassV30
- App PerformanceA2
- Read SpeedUp to 190 MB/s
- Write SpeedUp to 130 MB/s
- EnduranceStandard
Available Capacities32GB, 64GB, 128GB, 256GB, 512GB, 1024GB, 1500GB
Pros
- V30 and A2 with fast writes
- sold up to 1.5TB. Widely available
- so easy to buy genuine.
Cons
- Write speeds are lower on the 32GB and 64GB versions.
recommended
View on Amazon
Kingston Canvas Go! Plus
$ · Mid-Range- UHS RatingUHS-I
- Speed ClassV30
- App PerformanceA2
- Read SpeedUp to 170 MB/s
- Write SpeedUp to 90 MB/s
- EnduranceStandard
Available Capacities64GB, 128GB, 256GB, 512GB
Pros
- V30 and A2 with 90 MB/s writes. Often bundled with a USB reader.
Cons
- Less common in retail stores than SanDisk.
SanDisk Extreme microSD
The SanDisk Extreme microSD pairs V30 video speed with an A2 app rating and reads up to 190 MB/s. It covers 4K recording in drones and action cameras, game storage in handhelds, and app storage in phones. It is sold from 32GB to 1.5TB.
Target User:
Smartphone, drone, and action camera users who want one reliable card for both 4K video and app storage
Best For:
Action Cameras, Drones, Smartphones & Tablets, Mirrorless Cameras
Step up to the SanDisk Extreme PRO for higher sustained write speeds, or down to the Samsung EVO Select if 4K recording isn't a priority and price matters more.
Featured Products on Amazon
This website contains affiliate links. We may earn a small commission when you purchase through our links at no extra cost to you.
Kingston Canvas Go Plus 128GB microSD Card | Up to 200MB/s | Class 10, UHS-I, U3, V30, A2 | SDCG4/128GB
Check Price
View on Amazon
Kingston 128GB Canvas Select Plus microSD Card | Up to 150MB/s | Class 10, UHS-I, U1, V10, A1 | SDCS3/128GB
Check Price
View on Amazon
Frequently Asked Questions
What SD Card Do I Need for ASUS ROG Ally?
The ASUS ROG Ally takes a microSD UHS-II card rated V30 or faster. 256GB or 512GB or 1TB covers most owners, and the maximum is 2TB. Buy SanDisk, Lexar, Samsung or Kingston from a reputable seller: counterfeit cards are the most common cause of lost files.
Should I use a UHS-II card in the ROG Ally?
Yes, if load times matter to you. The reader supports UHS-II, so a UHS-II card loads games faster. UHS-I cards work at UHS-I speed.
What is the best capacity for the ROG Ally?
512GB or 1TB. Many AAA games take over 100GB.
Is V30 required for ASUS ROG Ally?
Yes. V30 guarantees 30 MB/s of sustained write, which keeps the ASUS ROG Ally free of slow loads, stutter, or write errors. Faster cards work too.
What size SD card should I get for ASUS ROG Ally?
256GB covers light use; 1TB suits heavy use. The maximum is 2TB.
Can I use older or slower cards with ASUS ROG Ally?
Not below V30. Slower cards cause slow loads, stutter, or write errors. Check the card label for the V30 mark.
Do I need a UHS-II card for ASUS ROG Ally?
No, but it helps. The ASUS ROG Ally has a UHS-II slot, so UHS-II cards write and offload faster. UHS-I cards work at UHS-I speed.
Does the brand matter for ASUS ROG Ally?
Yes. SanDisk, Lexar, Samsung and Kingston cards meet their rated speeds. Buy from the brand's store or a major retailer: counterfeit cards sold under those names are common on marketplaces.
What happens if I use the wrong card with ASUS ROG Ally?
A card slower than V30 causes slow loads, stutter, or write errors. A card over the maximum capacity or in the wrong format may not be recognized.
How long will an SD card last in ASUS ROG Ally?
Several years in normal use. Cards usually fail from wear or counterfeit flash, not age. Replace yours at the first write error, corrupted file or "card not recognized" message.