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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.

  • The card can deliver higher speeds when used in a Switch 2 or other MicroSD Express capable devices.

  • The card can still store data on non-Express devices while operating at reduced UHS-1 speeds.

  • The Onn-branded flash storage is reportedly a rebranded PNY product, which may help explain performance expectations.

  • The deal can be comparatively cheaper than other SD options, including higher-priced Samsung Pro pricing mentioned in comments.

  • The promo codes DOUBLE10 and FAST30 reportedly failed for some accounts, making the deal hard to reproduce.

  • The Express card reportedly failed after about one year in a Switch 2, and another Onn card reportedly failed after roughly seven months.

  • Warranty replacement support reportedly stalled, with Walmart support providing only a phone number and a replacement reportedly being missed after about a year.

  • The card reportedly felt cheap to some buyers and prompted return consideration after pickup.

Common Questions (4)

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59 Comments

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Oct 18, 2026 3:40 AM
4K Comments
Joined Aug 2006
m3coupOct 18, 2026 3:40 AM
4K Comments
Quote from Slick_Drone View quoted comment :
This is a bit of overkill for a security camera, you could get by with a regular microSD card.
I used Lexar 128GB for all the cameras until I got a new cam, and the cost of a Lexar 128GB is more than this card.
1
Oct 18, 2026 9:23 PM
4.2K Comments
Joined Jul 2019
Gb1908Oct 18, 2026 9:23 PM
4.2K Comments
Greed even got to this pricing as well...
Oct 18, 2026 11:48 PM
19 Comments
Joined May 2025
PowerfulClass590Oct 18, 2026 11:48 PM
19 Comments
Had a friend lose all her pictures after it died 4 months later
1
Oct 19, 2026 12:10 PM
29 Comments
Joined Sep 2019
SSMINNOWJOHNSONOct 19, 2026 12:10 PM
29 Comments

Our community has rated this post as helpful. If you agree, why not thank

I've seen a deep dive on these...I believe they are the same as the Lenovo cards. Check out Spawn Wave

https://youtu.be/oOOR4dklHhU?is=x0h_eaW3DwCFR8TV
2
Oct 19, 2026 1:46 PM
1.9K Comments
Joined Aug 2007
OrangeJuliusOct 19, 2026 1:46 PM
1.9K Comments
Good deal, especially compared to the rest of the market. This is lower than the average Onn card listed in eBay, so as long as you're willing to wait on Walmart's slow pickup, this is hard to beat.

Just know, this is backwards compatible with non-MicroSD Express devices, but operates at reduced UHS-1 speeds. Still perfectly fine, but not as fast as dedicated MicroSD cards like Samsung's Pro line. With MicroSD Express devices, these are great.
Last edited by OrangeJulius October 21, 2026 at 01:25 PM.
Original Poster
Pro
Oct 21, 2026 11:01 AM
8.7K Comments
Joined Nov 2017
Slick_DroneOct 21, 2026 11:01 AM
Original Poster
Pro
8.7K Comments
Quote from OrangeJulius View quoted comment :
Good deal, especially compared to the rest of the market. This is lower than the average Onn card listed in eBay, so as long as you're willing to wait on Walmart's slow pickup, this is hard to beat.Just know, this is backwards compatible with non-MicroSD Express devices, but operates at reduced UHS-1 speeds. Still perfectly fine, but not as fast as dedicated MicroSD cards like Samsun's Pro line. With MicroSD Express devices, these are great.
I previously wouldn't ever bother with Walmart curbside pickup but the last two times I went (two different stores) and I couldn't believe it - I waited less than 2 minutes for my stuff to come out!

I guess they have really put more effort into their curbside or they're just not as inundated as they were during COVID.
Original Poster
Pro
Oct 21, 2026 11:02 AM
8.7K Comments
Joined Nov 2017
Slick_DroneOct 21, 2026 11:02 AM
Original Poster
Pro
8.7K Comments
Quote from PowerfulClass590 View quoted comment :
Had a friend lose all her pictures after it died 4 months later
She had this exact card, or some other Onn card? I ask because I don't know why someone would use a SDXC card for pictures when they're double the cost of a regular microSD card.

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Oct 21, 2026 3:45 PM
360 Comments
Joined Nov 2010
JadeRavenOct 21, 2026 3:45 PM
360 Comments
Trip to walmark kills the deal
Oct 21, 2026 5:21 PM
28 Comments
Joined Dec 2024
TkoddaOct 21, 2026 5:21 PM
28 Comments
Quote from SammieSocal25 View quoted comment :
Wow Walmart has their own SD cards?
It just a Lexar lol which is still a reliable brand
1
1
Oct 21, 2026 7:06 PM
4K Comments
Joined Aug 2006
m3coupOct 21, 2026 7:06 PM
4K Comments
Quote from Slick_Drone View quoted comment :
She had this exact card, or some other Onn card? I ask because I don't know why someone would use a SDXC card for pictures when they're double the cost of a regular microSD card.
A regular SD card actually cost more. I tried to get the same Samsung 128gb pro SD card for the additional camera, which I bought a year ago for $19, is now $50 at Best Buy among other places. This Onn card is a steal at 256GB comparatively speaking.
Oct 21, 2026 8:25 PM
1.9K Comments
Joined Aug 2007
OrangeJuliusOct 21, 2026 8:25 PM
1.9K Comments
Quote from Slick_Drone View quoted comment :
I previously wouldn't ever bother with Walmart curbside pickup but the last two times I went (two different stores) and I couldn't believe it - I waited less than 2 minutes for my stuff to come out!

I guess they have really put more effort into their curbside or they're just not as inundated as they were during COVID.
My most recent experience, around 6 months ago, was a 30 minute wait. I think it's store by store unfortunately. It really depends on how many people are in line ahead of you.
Oct 21, 2026 11:48 PM
378 Comments
Joined Mar 2016
Madad33Oct 21, 2026 11:48 PM
378 Comments
Quote from m3coup View quoted comment :
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.
Yes, but how was the banana?
Oct 22, 2026 8:34 PM
4K Comments
Joined Aug 2006
m3coupOct 22, 2026 8:34 PM
4K Comments
Quote from Madad33 View quoted comment :
Yes, but how was the banana?
I forgot about the banana and left it in the backseat. It was cooked after 3 days. I did however got the Amex redemption email.
Oct 25, 2026 5:44 PM
3 Comments
Joined Feb 2026
LovelyKnob6112Oct 25, 2026 5:44 PM
3 Comments
Both promo codes dead

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