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Slick_Drone 17.3K 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
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Deal Details
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
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
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

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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.

  • 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.

  • 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.

  • 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.

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59 Comments

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Oct 15, 2026 3:33 PM
6.9K Comments
Joined Oct 2009
SammieSocal25Oct 15, 2026 3:33 PM
6.9K Comments
Wow Walmart has their own SD cards?
1
6
4
Oct 15, 2026 4:05 PM
178 Comments
Joined Apr 2023
AquaHealth433Oct 15, 2026 4:05 PM
178 Comments
I've been very happy with Onn products over the past few years.
1
3
Oct 15, 2026 4:20 PM
5.2K Comments
Joined Apr 2013
satellite779Oct 15, 2026 4:20 PM
5.2K Comments
OOS already
3
Original Poster
Pro
Oct 15, 2026 4:23 PM
8.7K Comments
Joined Nov 2017
Slick_DroneOct 15, 2026 4:23 PM
Original Poster
Pro
8.7K Comments
Quote from satellite779 View quoted comment :
OOS already
I can still add to cart.
Oct 15, 2026 4:34 PM
169 Comments
Joined Nov 2015
LJB01Oct 15, 2026 4:34 PM
169 Comments
Had the same one in my my switch 2 and it only lasted one year
4
2
Oct 15, 2026 4:57 PM
937 Comments
Joined Oct 2007
CowboyjloveOct 15, 2026 4:57 PM
937 Comments
Its sad 37.00 is considered a good price for 14.00 memory.
1
3
Oct 15, 2026 4:57 PM
6 Comments
Joined Nov 2011
MaxamusbOct 15, 2026 4:57 PM
6 Comments
Promo code doesnt work for me anymore. Either of them.

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Oct 15, 2026 5:02 PM
14 Comments
Joined Jan 2015
DealSeeker1337Oct 15, 2026 5:02 PM
14 Comments
My store has the 256 in stock for pickup. FAST30 didn't work but DOUBLE10 did.
1
1
Oct 15, 2026 5:03 PM
5.8K Comments
Joined Apr 2009
DoobieBrotherOct 15, 2026 5:03 PM
5.8K Comments
My store has it.. Are these backwards compatible for a phone?
Last edited by DoobieBrother October 15, 2026 at 10:05 AM.
2
Oct 15, 2026 5:46 PM
670 Comments
Joined Sep 2015

This comment has been rated as unhelpful by Slickdeals users.

Original Poster
Pro
Oct 15, 2026 6:05 PM
8.7K Comments
Joined Nov 2017
Slick_DroneOct 15, 2026 6:05 PM
Original Poster
Pro
8.7K Comments
Quote from DealSeeker1337 View quoted comment :
My store has the 256 in stock for pickup. FAST30 didn't work but DOUBLE10 did.
Did you follow ALL the steps? You added a banana to the cart as well and selected store pick-up for both?
1
2
Oct 15, 2026 6:12 PM
98 Comments
Joined Nov 2010
JokerslieOct 15, 2026 6:12 PM
98 Comments
DOUBLE10 and FAST30 no longer working for either SD card. *yes I added the banana and for pick-up
Last edited by Jokerslie October 15, 2026 at 11:14 AM.
1
Original Poster
Pro
Oct 15, 2026 6:32 PM
8.7K Comments
Joined Nov 2017
Slick_DroneOct 15, 2026 6:32 PM
Original Poster
Pro
8.7K Comments
Quote from Maxamusb View quoted comment :
Promo code doesnt work for me anymore. Either of them.
Quote from Jokerslie View quoted comment :
DOUBLE10 and FAST30 no longer working for either SD card. *yes I added the banana and for pick-up
Still very much working, must be your account.
1
1
Oct 15, 2026 6:41 PM
144 Comments
Joined Jun 2021
hotukdealsOct 15, 2026 6:41 PM
144 Comments
Quote from SammieSocal25 View quoted comment :
Wow Walmart has their own SD cards?
Its a rebranded PNY same with all the other walmart Onn branded flash storage
1

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Oct 15, 2026 7:43 PM
5.2K Comments
Joined Sep 2019
LavenderPickle7682Oct 15, 2026 7:43 PM
5.2K Comments
Quote from Cowboyjlove View quoted comment :
Its sad 37.00 is considered a good price for 14.00 memory.
Electrons have consequences, and some conducted themselves poorly.
4
4
3

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