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Slick_Drone 17.4K Views

Oct 15, 2026 3:16 PM

Select Accounts: Onn microSDXC Express Card, microSD, 256 GB (Switch 2 Compatible) + filler - $36.77

$37

$47

21% off

Walmart

Get Deal at Walmart

For select accounts:

Add onn microSDXC Express Card [walmart.com], 256 GB to your cart

Add one fresh banana [walmart.com] (must be a banana or other PRODUCE item) to your cart

Must Select STORE PICK-UP and a date/time

Add promo code DOUBLE10 or FAST30 at checkout. (Example)

Your total will be $36.77 + 5-6 cents for the Banana + Tax

Store pick-up only.

This will also work on the 512GB version to take $10 off making it $74.77: https://www.walmart.com/ip/ONN-MICRO-SD-EXPRESS/15708762625 [walmart.com]

https://www.walmart.com/ip/ONN-MI...5706752314

Price Intelligence

Deal History

Sale Price

Slickdeal

$NaN

Today

Post Date	Sold By	Sale Price	Activity
10/01/25	Walmart	$36	19
06/18/25	Walmart	$36	7

Community Reviews

This Onn 256 GB microSD Express card stands out as a cheap way to add fast storage for a Switch 2, with backward compatibility for older devices at slower UHS 1 speeds. The price looks strong versus other cards, and the same Onn line is described as working well in Switch 2 use. The main concern is reliability, since multiple cards have failed after months to a little over a year, including light use. It is a solid value if you want Express support, but long term durability is the question.

Common Questions (4)

It has worked well for some Switch 2 owners, including 512GB cards used since launch, but there are also reports of cards failing after about 4 months, 7 months, or a little over a year. If you use it for important photos or saves, a backup and warranty coverage are worth considering.
BeautifulRoute6107 tu1820 dezign_guy dezign_guy
They can work, but not consistently. Some orders went through with DOUBLE10 while FAST30 failed, and several comments say both codes stopped working entirely, suggesting the promo may be account-dependent or dead for some shoppers.
DealSeeker1337 Jokerslie Slick_Drone PowerfulChicken4357
It will work, but it is overkill for a security camera. A regular microSD card or a high-endurance card is a better fit because camera recording benefits more from endurance than from Express speed.
Slick_Drone MWink tannersarms m3coup
Yes. In a Switch 2 or other Express-capable device it can run at much higher speeds, while in an original Switch, phone, camera, or PC reader without Express support it still works but only at the device's supported UHS-1 speeds.
tannersarms OrangeJulius

AI-generated summary based on comments from the community. Updated 1d ago

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59 Comments

TwixMonster

Oct 16, 2026 11:00 AM

83 Comments

Joined Dec 2007

TwixMonsterOct 16, 2026 11:00 AM

83 Comments

Double10 just worked for me. Neither codes were working yesterday

Slick_Drone

Original Poster

Pro

Oct 16, 2026 12:12 PM

8.7K Comments

Joined Nov 2017

Slick_DroneOct 16, 2026 12:12 PM

Original Poster

Pro

8.7K Comments

Quote from m3coup

Neither code worked. Luckily I have couple of $10 off $50 from Amex Offer and used that instead. Urgent need one for a card for security cam.

This is a bit of overkill for a security camera, you could get by with a regular microSD card.

MWink

Oct 16, 2026 2:51 PM

2.4K Comments

Joined Oct 2011

MWinkOct 16, 2026 2:51 PM

2.4K Comments

Quote from BeautifulRoute6107

Got an Onn 512 for my Switch 2 and it works very well. I think I paid around $80. If you're on the fence about this brand; don't be bc a major SD manufacturer actually makes the hardware. Onn buys and rebrands them

That means nothing. NAND is heavily binned. It could be from the best company but still low-binned garbage. BTW, there are only about half a dozen companies that manufacture NAND.

Quote from m3coup

Neither code worked. Luckily I have couple of $10 off $50 from Amex Offer and used that instead. Urgent need one for a card for security cam.

You should really get a high endurance card for a security camera.

FuschiaJuice666

Oct 16, 2026 7:16 PM

196 Comments

Joined Feb 2026

FuschiaJuice666Oct 16, 2026 7:16 PM

196 Comments

Ah, the Great Value brand of flash storage, just what I needed.

almostroy

Oct 16, 2026 11:00 PM

266 Comments

Joined Sep 2011

almostroyOct 16, 2026 11:00 PM

266 Comments

Yeah neither code working on either card.

djc6

Oct 16, 2026 11:06 PM

456 Comments

Joined Apr 2007

djc6Oct 16, 2026 11:06 PM

456 Comments

Thanks! I was able to combine this with my favorite cherub tomatoes instead of a banana.

djc6

Oct 16, 2026 11:07 PM

456 Comments

Joined Apr 2007

djc6Oct 16, 2026 11:07 PM

456 Comments

Quote from almostroy

Yeah neither code working on either card.

did you do the part where you need to add a produce item? the instructions mention a 20 cent banana

almostroy

Oct 16, 2026 11:43 PM

266 Comments

Joined Sep 2011

almostroyOct 16, 2026 11:43 PM

266 Comments

Quote from djc6

did you do the part where you need to add a produce item? the instructions mention a 20 cent banana

Yep. Added a banana. Added 512 card. Set both for pickup. Used both codes. Neither valid. Removed 512 card, added 256 card. Same result.

No banana for me I guess.

m3coup

Oct 17, 2026 12:16 AM

4K Comments

Joined Aug 2006

m3coupOct 17, 2026 12:16 AM

4K Comments

Picked up the card this afternoon w/ the banana lol. Seems like a cheap card. Might return it since I haven't gotten the Amex Offer email yet.

palewook

Oct 17, 2026 12:25 AM

435 Comments

Joined Oct 2015

palewookOct 17, 2026 12:25 AM

435 Comments

Quote from Cowboyjlove

Its sad 37.00 is considered a good price for 14.00 memory.

2026 stinks for any electronics with smt/smd memory, unfortunately, 2027 and beyond will only be worse. going to be years before the price comes down (or inflation catches the new standardized prices)

bearstampede

Oct 17, 2026 10:49 AM

1.1K Comments

Joined Feb 2015

bearstampedeOct 17, 2026 10:49 AM

1.1K Comments

Quote from LavenderPickle7682

[]
Electrons have consequences, and some conducted themselves poorly.

~~Elections~~ Electrons and their consequences have been a disaster for the human race.

Last edited by bearstampede October 17, 2026 at 03:53 AM.

ryan.arnold

Oct 17, 2026 1:32 PM

28 Comments

Joined May 2017

ryan.arnoldOct 17, 2026 1:32 PM

28 Comments

Quote from LJB01

Had the same one in my my switch 2 and it only lasted one year

This is also my experience, with 2 different Onn cards. First one failed, and a replacement failed the same way. I barely play it too.
I believe the people who say they work fine, just sharing my experience. I'll prob try a 3rd time at this price.

Koudie

Oct 17, 2026 5:26 PM

153 Comments

Joined Nov 2015

KoudieOct 17, 2026 5:26 PM

153 Comments

Quote from LJB01

Had the same one in my my switch 2 and it only lasted one year

Sucks to hear. Wanted to grab it for my switch 2

tannersarms

Oct 17, 2026 11:20 PM

2.9K Comments

Joined Mar 2007

tannersarmsOct 17, 2026 11:20 PM

2.9K Comments

Quote from DoobieBrother

My store has it.. Are these backwards compatible for a phone?

Sorry someone downvoted you, I think it's a fair question, so I looked it up.

A 256 GB MicroSD Express card inserted into a Nintendo Switch 2 or another Express-capable device can achieve much higher speeds.
The same card inserted into an original Nintendo Switch, a phone, camera, or PC card reader that lacks Express support should still work for storage, but only at the speeds supported by that device.

Presumably though you should be able to find a non-express 256GB for cheaper than the new and improved version, but we aren't living in rational times so who knows. I guess future-proofing makes sense too.

Last edited by tannersarms October 17, 2026 at 06:49 PM.

Recoman

Oct 18, 2026 3:13 AM

348 Comments

Joined Jan 2017

RecomanOct 18, 2026 3:13 AM

348 Comments

Quote from dezign_guy

My Onn 512gb also failed. It lasted a little over a year.

My Onn 512 GB actually is still going and doing well. I bought mine at launch and actually sold it at the same price I bought it last year to a friend of mine. She is still not having any issues.

On the other hand, I upgraded to that outrageously expensive Lexar 1TB from the Costco deal this year but I needed the extra space for these games.

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Computers Flash Storage SD Cards & Micro SD Cards onn Walmart

Rating:	(4.6 out of 5 stars)
Reviews:	1,162 Walmart Reviews
Product Description:	The onn microSDXC Express Card is a versatile and high-capacity storage solution designed to be compatible with a wide range of devices, including the Nintendo Switch 2, most smartphones, tablets, drones, cameras, and computers. With a substantial 256 GB capacity, it offers ample space for all your data storage needs. The card boasts impressive performance with up to 800 MB/s read speed and up to 600 MB/s write speed, ensuring quick and efficient data transfer. Built to withstand various environmental conditions, it is water, shock, temperature, and magnet proof, making it a reliable choice for both everyday and demanding applications. Additionally, the onn microSDXC Express Card works seamlessly with other game consoles and laptops, providing flexible and robust storage options. onn microSDXC Express Card, 256 GB Compatible with Nintendo Switch 2 and most smartphones, tablets, drones, cameras, and computers 256 GB capacity Up to 800 MB/s read speed Up to 600 MB/s write speed Water, shock, temperature, and magnet proof Also works with other game consoles and laptops
Model Number:	681131315111
Product SKU:	15706752314
UPC:	681131315111

A new Black Friday feature is coming...A new Black Friday feature is coming...

Select Accounts: Onn microSDXC Express Card, microSD, 256 GB (Switch 2 Compatible) + filler - $36.77

$37

$47

Community Voting