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expired Posted by phoinix | Staff • Mar 29, 2024
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expired Posted by phoinix | Staff • Mar 29, 2024

512GB SanDisk Ultra UHS-I microSDXC Memory Card w/ SD Adapter

$25

$60

58% off
Amazon
23 Comments 12,794 Views
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Deal Details
Note: This recent Frontpage Deal is now available at a lower price.

Amazon has 512GB SanDisk Ultra UHS-I microSDXC Memory Card w/ SD Adapter (SDSQUAC-512G-GN6MA) for $24.99. Shipping is free w/ Prime or on orders of $35 or more.

Thanks to community member phoinix for finding this deal.

Features:
  • 512GB Storage Capacity
  • UHS-I / U1 / Class 10 / A1
  • Max Read Speed: 150 MB/s
  • Min Write Speed: 10 MB/s
  • Records Full HD Video
  • Capture Raw and JPEG Photos
  • Water / Shock / Magnet / X-Ray Proof
  • Can Resist Temperature Extremes
  • Works with Android Smartphones & Tablets

Editor's Notes

Written by oceanlake | Staff

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Note: This recent Frontpage Deal is now available at a lower price.

Amazon has 512GB SanDisk Ultra UHS-I microSDXC Memory Card w/ SD Adapter (SDSQUAC-512G-GN6MA) for $24.99. Shipping is free w/ Prime or on orders of $35 or more.

Thanks to community member phoinix for finding this deal.

Features:
  • 512GB Storage Capacity
  • UHS-I / U1 / Class 10 / A1
  • Max Read Speed: 150 MB/s
  • Min Write Speed: 10 MB/s
  • Records Full HD Video
  • Capture Raw and JPEG Photos
  • Water / Shock / Magnet / X-Ray Proof
  • Can Resist Temperature Extremes
  • Works with Android Smartphones & Tablets

Editor's Notes

Written by oceanlake | Staff

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+21
Good Deal
Visit Amazon

Price Intelligence

Model: SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - Up to 150MB/s, C10, U1, Full HD, A1, MicroSD Card - SDSQUAC-512G-GN6MA

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 7/8/2025, 10:37 AM
Sold By Sale Price
Amazon$37.75

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Top Comments

Rurjur
66 Posts
22 Reputation
Amazon is notorious for mixing 3rd party stock with their own in warehouse and ending up with counterfeit SD cards.
Hawk2007
22474 Posts
1007 Reputation
H2testw.... Free and it verifies that you can write to every byte you paid for.

22 Comments

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Mar 29, 2024
58 Posts
Joined Oct 2023
Mar 29, 2024
XeroxLover72
Mar 29, 2024
58 Posts
Is this fast enough for a Nintendo Switch?
1
Pro
Mar 29, 2024
14,024 Posts
Joined Feb 2007
Mar 29, 2024
sarcasmogratis
Pro
Mar 29, 2024
14,024 Posts
"Up to 150MB/s transfer speeds" (Read & Write)
Mar 29, 2024
3,086 Posts
Joined May 2006
Mar 29, 2024
nicedog
Mar 29, 2024
3,086 Posts
U1, pass.
1
Mar 29, 2024
66 Posts
Joined Sep 2020
Mar 29, 2024
Rurjur
Mar 29, 2024
66 Posts

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

Amazon is notorious for mixing 3rd party stock with their own in warehouse and ending up with counterfeit SD cards.
4
4
Mar 29, 2024
22,474 Posts
Joined Dec 2006

This comment has been rated as unhelpful by Slickdeals users.

Mar 29, 2024
13 Posts
Joined Aug 2022
Mar 29, 2024
LavenderPen7497
Mar 29, 2024
13 Posts
Quote from Hawk2007 :
Never had had a fake card delivered by Amazon.
I've had it happen twice now. Both times a simple 'product not as described' return/refund was not an issue. But suspect many would not realize they got a fake.
2
Mar 29, 2024
6,909 Posts
Joined May 2006
Mar 29, 2024
dealstorm
Mar 29, 2024
6,909 Posts
Quote from LavenderPen7497 :
I've had it happen twice now. Both times a simple 'product not as described' return/refund was not an issue. But suspect many would not realize they got a fake.
How did you realize you got a fake?
1
1

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Mar 29, 2024
1,247 Posts
Joined Feb 2017
Mar 29, 2024
sdoberma
Mar 29, 2024
1,247 Posts
This one vs extrem plus. Which I better buy for my osmo action 4?
Mar 29, 2024
720 Posts
Joined Jan 2005
Mar 29, 2024
SeriesXM
Mar 29, 2024
720 Posts
Quote from nicedog :
U1, pass.
I don't understand all the ratings of these cards and would have assumed U1 was the best, so could you please explain why that's bad? What are we supposed to be looking for if we want high quality?
1
Mar 29, 2024
132 Posts
Joined Mar 2018
Mar 29, 2024
llamableat
Mar 29, 2024
132 Posts
Quote from Hawk2007 :
Never had had a fake card delivered by Amazon.
Unfortunately I have. More than once.
2
Mar 29, 2024
22,474 Posts
Joined Dec 2006
Mar 29, 2024
Hawk2007
Mar 29, 2024
22,474 Posts
Quote from SeriesXM :
I don't understand all the ratings of these cards and would have assumed U1 was the best, so could you please explain why that's bad? What are we supposed to be looking for if we want high quality?
Depends more on the use case scenario and speed you need. I doubt a Nintendo switch can take advantage of the higher speeds, especially when reading data.
Mar 29, 2024
548 Posts
Joined Jul 2019
Mar 29, 2024
tengtengvn
Mar 29, 2024
548 Posts
Quote from sdoberma :
This one vs extrem plus. Which I better buy for my osmo action 4?
I bought the Extreme last week for the Action 4.
Mar 29, 2024
910 Posts
Joined Jan 2006
Mar 29, 2024
bobbutts
Mar 29, 2024
910 Posts

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

This is brutally slow write speeds. As long as you're using this where that isn't important it seems ok. At 10MB/sec it takes over 14 hours to write 512GB. The most recent microsd card I got (Sandisk Pro Ultimate) is 13x as fast at writing.
2
Mar 29, 2024
1,533 Posts
Joined Aug 2009
Mar 29, 2024
EK100
Mar 29, 2024
1,533 Posts
Quote from dealstorm :
How did you realize you got a fake?
There are two checks you need to do. Check the Read/Write speed. And check the capacity you have to fill up the card with unique data the size of the capacity. Then you have to verify the files you just copied. One of the tricks of fakes is to make the full size addressable to same say 1/4 or less of memory. So your OS thinks there's 512 Gb there but there's really only 128 Gb. That same 128 Gb is reused 4 times unknowingly by your OS.

I'm sure there's a utility for that latter one by now.

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Mar 29, 2024
22,474 Posts
Joined Dec 2006
Mar 29, 2024
Hawk2007
Mar 29, 2024
22,474 Posts

Our community has rated this post as helpful. If you agree, why not thank Hawk2007

Quote from EK100 :
There are two checks you need to do. Check the Read/Write speed. And check the capacity you have to fill up the card with unique data the size of the capacity. Then you have to verify the files you just copied. One of the tricks of fakes is to make the full size addressable to same say 1/4 or less of memory. So your OS thinks there's 512 Gb there but there's really only 128 Gb. That same 128 Gb is reused 4 times unknowingly by your OS.

I'm sure there's a utility for that latter one by now.
H2testw.... Free and it verifies that you can write to every byte you paid for.
1

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