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expiredphoinix | Staff posted Mar 29, 2024 05:50 PM

Item 1 of 2

expiredphoinix | Staff posted Mar 29, 2024 05:50 PM

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

$25

$60

58% off

Amazon

23 Comments 13,242 Views

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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

This price is $3 lower than a recent Frontpage Deal that received over 40 thumbs up from our community.
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by phoinix | Staff

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

This price is $3 lower than a recent Frontpage Deal that received over 40 thumbs up from our community.
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by phoinix | Staff

Deal Score

+21

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

Slickdeal

$NaN

Today

Post Date	Sold By	Sale Price	Activity
11/21/25	Amazon	$24	5
07/09/25	Amazon	$30	3
04/05/24	Amazon	$28	10
03/26/24	Amazon	$26	1
03/22/24	Amazon	$25	1
03/18/24	Western Digital	$28 frontpage	39
12/18/23	Amazon	$25	11
07/19/23	Amazon	$35	3
07/12/23	Amazon	$30	2

Current Prices

Sort: Lowest to Highest | Last Updated 11/24/2025, 02:09 AM

Sold By	Sale Price
NewEgg	$42.50
Amazon	$42.99

Unregistered (You)

Top Comments

Rurjur

77 Posts

30 Reputation

Amazon is notorious for mixing 3rd party stock with their own in warehouse and ending up with counterfeit SD cards.

Hawk2007

22488 Posts

1011 Reputation

H2testw.... Free and it verifies that you can write to every byte you paid for.

22 Comments

XeroxLover72

Mar 29, 2024 06:16 PM

64 Posts

Joined Oct 2023

XeroxLover72Mar 29, 2024 06:16 PM

64 Posts

Is this fast enough for a Nintendo Switch?

sarcasmogratis

Mar 29, 2024 07:03 PM

14,472 Posts

Joined Feb 2007

sarcasmogratisMar 29, 2024 07:03 PM

14,472 Posts

"Up to 150MB/s transfer speeds" (Read & Write)

nicedog

Pro

Mar 29, 2024 08:50 PM

3,269 Posts

Joined May 2006

nicedog

Pro

Mar 29, 2024 08:50 PM

3,269 Posts

U1, pass.

Rurjur

Mar 29, 2024 08:50 PM

77 Posts

Joined Sep 2020

RurjurMar 29, 2024 08:50 PM

77 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.

Mar 29, 2024 09:10 PM

22,488 Posts

Joined Dec 2006

This comment has been rated as unhelpful by Slickdeals users.

LavenderPen7497

Mar 29, 2024 09:25 PM

13 Posts

Joined Aug 2022

LavenderPen7497Mar 29, 2024 09:25 PM

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.

dealstorm

Mar 29, 2024 09:26 PM

7,074 Posts

Joined May 2006

dealstormMar 29, 2024 09:26 PM

7,074 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?

sdoberma

Mar 29, 2024 09:27 PM

1,272 Posts

Joined Feb 2017

sdobermaMar 29, 2024 09:27 PM

1,272 Posts

This one vs extrem plus. Which I better buy for my osmo action 4?

SeriesXM

Mar 29, 2024 09:34 PM

720 Posts

Joined Jan 2005

SeriesXMMar 29, 2024 09:34 PM

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?

llamableat

Mar 29, 2024 09:38 PM

148 Posts

Joined Mar 2018

llamableatMar 29, 2024 09:38 PM

148 Posts

Quote from Hawk2007

Never had had a fake card delivered by Amazon.

Unfortunately I have. More than once.

Hawk2007

Mar 29, 2024 09:39 PM

22,488 Posts

Joined Dec 2006

Hawk2007Mar 29, 2024 09:39 PM

22,488 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.

tengtengvn

Mar 29, 2024 09:39 PM

574 Posts

Joined Jul 2019

tengtengvnMar 29, 2024 09:39 PM

574 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.

bobbutts

Mar 29, 2024 09:56 PM

922 Posts

Joined Jan 2006

bobbuttsMar 29, 2024 09:56 PM

922 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.

EK100

Mar 29, 2024 09:58 PM

1,548 Posts

Joined Aug 2009

EK100Mar 29, 2024 09:58 PM

1,548 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.

Hawk2007

Mar 29, 2024 10:10 PM

22,488 Posts

Joined Dec 2006

Hawk2007Mar 29, 2024 10:10 PM

22,488 Posts

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

Quote from EK100

H2testw.... Free and it verifies that you can write to every byte you paid for.

Unregistered (You)

Computers Computer Parts Hard Drives Flash Storage SD Cards & Micro SD Cards Free Shipping with Prime Online Only

5 Days to Black Friday!5 Days to Black Friday!

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

$25

$60

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

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