SanDisk256GB microSD Express Card - Works with Nintendo-Switch 2, Up to 880MB/s Read, Up to 650MB/s Write, 210MB/s Sustained Write, U3, C10 - SDSQXFN-256G-GN4NN
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SanDisk256GB microSD Express Card - Works with Nintendo-Switch 2, Up to 880MB/s Read, Up to 650MB/s Write, 210MB/s Sustained Write, U3, C10 - SDSQXFN-256G-GN4NN

4.7/5
Product ID: 689455858
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Details

  • Brand
    SanDisk
  • Model Name
  • Flash Memory Type
    Micro SD
  • Memory Storage Capacity
    256 GB
  • Compatible Devices
    Gaming Console
880MB/s read speed
💾256GB ultra storage
🛡️7-proof durability

Description

🚀 Level up your storage game with speed and resilience!

  • UNMATCHED DURABILITY - Waterproof, shockproof, x-ray proof, magnetic proof, and wear-out proof for peace of mind.
  • BLAZING FAST TRANSFERS - Up to 880MB/s read & 650MB/s write speeds for next-gen gaming and media.
  • SMART THERMAL MANAGEMENT - SanDisk ThermAdapt tech prevents overheating during intense use.
  • FUTURE READY COMPATIBILITY - PCIe-NVMe interface supports Nintendo Switch 2 and upcoming devices.
  • MASSIVE STORAGE MINIMAL BULK - 256GB capacity in a featherlight 0.26g microSD card.

The SanDisk 256GB microSD Express Card delivers ultra-fast read speeds up to 880MB/s and write speeds up to 650MB/s, optimized for Nintendo Switch 2 and future PCIe-NVMe devices. Built tough with waterproof, shockproof, and x-ray proof features, it ensures reliable performance in any environment. Its advanced thermal management keeps your device cool during heavy use, making it the ultimate storage upgrade for gamers and professionals alike.

Specifications

ColorBlack
Special FeatureX Ray Proof, Water Proof, Magnetic Proof, Wearout Proof, Drop Proof
Read Speed880 Megabytes Per Second
Item Weight0.26 Grams
Warranty TypeLifetime
Write Speed100.0
Hardware InterfacemicroSDHC
Secure Digital Association Speed ClassClass 10
ManufacturerSanDisk Technologies, Inc.
UPC619659202064
Item model numberSDSQXFN-256G-GN4NN
Item Weight0.009 ounces
Product Dimensions0.59 x 0.43 x 0.04 inches
Item Dimensions LxWxH0.59 x 0.43 x 0.04 inches
ASINB0DFQGVLYF
Date First AvailableAugust 30, 2024

Reviews

4.7

All from verified purchases

L**A

Switch 2!

This is the required type of microSD for the Nintendo Switch 2. It’s really too bad that SanDisk only makes them at a max size of 256GB right now. I plan to buy the 1TB version once they start selling it. SanDisk is the most reliable microSD on the market right now. I don’t trust anyone more than them. I’ve never had to worry about them at all. Functional, decent value, fast speeds, good enough storage for now on my Switch 2, and easy to install under the Switch 2 stand.

C**N

Super Fast Storage

Blazing fast and works great with my Switch 2. Worth it.

S**E

Gets the job done.

This is the ONLY card that works with my DJI Action5 Pro. I just wish it was a bigger size. 256 is okay 512GB or 1TB is more like it and what I NEED.

B**T

With over 1GB/s file transfer performance, this card is still the best on the market

Update 06/07/2025, Comparing to Onn's Express 256:There is a new budget microSD 256 Express card from Onn that appeared in retail this week coinciding with the launch of the Switch 2. It claims to support up to 800MB/s reads and 600MB/s writes. I picked one up to compare. With larger stress tests (Random reads and writes going up to 5GB instead of the 1GB test I show here), this SanDisk can see its transfer rate drop to a minimum of 400GB/s on writes. For the Onn device, on writes the rate drops to 200MB/s typically, but sometimes as low as 150MB/s as the firmware seems to have trouble keeping up (it stalls completely), nearly 3 times slower on average than the SanDisk. What's worse is that it drops to 400GB/s even for transfers as small as 2GB, 300GB/s for 3GB, and 200GB/s from there on up, while the SanDisk still manages to hold minimum 600GB/s. Keep in mind that most larger games for the Switch 2 are about 20GB or more, and there are a few 64GB or larger. I do not currently own a PNY card to test, but online evidence suggests that it too is slower than the SanDisk, but may be faster than the Onn device. With the way the Onn card stalls on writing, literally stopping occasionally for upwards of a second while testing, I could never recommend it. You get what you pay for with the SanDisk. Full review follows.REVIEW:During play, the Onn express card may be able to keep up due to small transfers and minimal loads, but its stalls will affect things, and during download and game management on the Switch 2, you will definitely see a time impact, probably significant. The good news is that the Onn express card was able to hold up on read tests without stalls, with the same 750MB/s as the SanDisk, but it never really went above 750MB/s for even smaller transfers while the Sandisk peaked at about 990MB/s, above their claimed rate. I am sure some caching was involved in that number, but the system caches the Onn in the same way, so there is a significant difference.Great high-speed card if you have a reader that supports Express. This card also outperforms even on a standard controller due to its rapid response time and excellent IOPs (measure of the number it can handle per second). Does well enough to be considered as an external drive on the Mac, though an M.2 reader enclosure will outperform it on specs. Can't beat it for portability.For sustained throughput on the SanDisk Express reader, this can't be beat, easily outperforming any other card I have from 4X to 20X faster. Camera file transfers happen at about 1GB/s. No drivers needed for any recent OS, though Ubuntu has a recent bug that will prevent those devices from attaining full speed unless an external Express-capable reader is used.

D**N

So far so good: no issues

I used h2testw to confirm successful write & read+verify functionality before inserting it into the Switch 2 and encountered no problems. I just had to wipe the card which required a small Switch 2 update and restart. After I was able to move games over and play them without issue. This is day one, so no idea yet what the longevity of the card will be. If I encounter issues I will plan to loop back and note them.

K**S

Good option

Works great with my switch 2. Glad I got it so now I have more space for more games and more fun.

T**R

Memory card

Why did you pick this product vs others?:This card works perfectly with the switch 2. I had no problem loading it into the system.

H**R

SanDisk quality as expected!

I bought this card for my Switch 2, and I have to say I really like it. It's definitely what I expect from SandDisk. It's only 256GB but that's not anything to sneeze at. I've got several games loaded on it now and it's still going strong. I will probably buy a larger capacity card as soon as they come into stock, but will stick with this brand because I like the quality. It's designed much like a regular mini-sd card, which works well because I can store it easily when it's filled up.

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TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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