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expiredphoinix | Staff posted Nov 28, 2025 09:27 AM

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expiredphoinix | Staff posted Nov 28, 2025 09:27 AM

[Resale, AC] $30.60: 512GB SanDisk Extreme microSDXC UHS-I Memory Card w/ Adapter (Used - Like New) at Amazon

$31

$50

38% off

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Amazon Resale via Amazon [amazon.com] has 512GB SanDisk Extreme microSDXC UHS-I Memory Card w/ Adapter for $40.80 - 25% at checkout = $30.60.
Shipping is free.

Offers [amazon.com]: (on conditions [amazon.com])

Like New: $30.60

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Price
$19.39 lower (39% savings) than the new price of $49.99

Savings
Save 25% at checkout

Customer reviews
4.8⭐ / 133,699
10,000+ bought in past month

amazon.com/dp/B09X7C2GBC [amazon.com]

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Like New: $30.60

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Model: SanDisk 512GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-512G-GN6MA

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Post Date	Sold By	Sale Price	Activity
07/08/25	Amazon	$17	2
04/22/25	Amazon	$42 Frontpage	16
01/07/24	Amazon	$30	30
12/25/23	Amazon	$30 Frontpage	80
12/14/23	Amazon	$33	4
11/19/23	Amazon	$32 Frontpage	56
10/10/23	Amazon	$32 Popular	14
07/11/23	Amazon	$40	4
03/29/23	Amazon	$48	1
03/09/23	Amazon	$50	0
11/24/22	Amazon	$51	1

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Sort: Lowest to Highest | Last Updated 4/5/2026, 09:15 PM

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NewEgg	$112.94
Best Buy	$202.05

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10 Comments

itank2

Pro

Nov 28, 2025 03:41 PM

721 Posts

Joined Nov 2010

itank2

Pro

Nov 28, 2025 03:41 PM

721 Posts

Our community has rated this post as helpful. If you agree, why not thank itank2

ships December 22-January 27.

AlcatrazHaze

Pro

Nov 28, 2025 05:51 PM

288 Posts

Joined Oct 2023

AlcatrazHaze

Pro

Nov 28, 2025 05:51 PM

288 Posts

wondering the counterfeit ratio of returned SD cards

tommibear

Nov 28, 2025 05:52 PM

186 Posts

Joined Mar 2004

tommibearNov 28, 2025 05:52 PM

186 Posts

Quote from AlcatrazHaze

wondering the counterfeit ratio of returned SD cards

It is high on Amazon. I had to return a couple after prime day after running the read/write speeds.

AlcatrazHaze

Pro

Nov 28, 2025 09:42 PM

288 Posts

Joined Oct 2023

AlcatrazHaze

Pro

Nov 28, 2025 09:42 PM

288 Posts

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

Quote from tommibear

It is high on Amazon. I had to return a couple after prime day after running the read/write speeds.

And "used" ones are probably way worse. I'd avoid used SD cards on Amazon.

shangxx

Nov 29, 2025 12:55 AM

918 Posts

Joined Mar 2007

shangxxNov 29, 2025 12:55 AM

918 Posts

Quote from tommibear

It is high on Amazon. I had to return a couple after prime day after running the read/write speeds.

how to know if they are counterfeit ? What should the read write speeds be around ? Ty

SeanBeanI

Nov 29, 2025 03:42 AM

229 Posts

Joined Jul 2019

SeanBeanINov 29, 2025 03:42 AM

229 Posts

Quote from tommibear

It is high on Amazon. I had to return a couple after prime day after running the read/write speeds.

How do you run read/write speed?

PetSpy

Pro

Nov 29, 2025 05:45 AM

7,109 Posts

Joined Sep 2013

PetSpy

Pro

Nov 29, 2025 05:45 AM

7,109 Posts

Quote from SeanBeanI

How do you run read/write speed?

the UHS-I bus itself is the bottleneck, so all these >100mpbs read/write speeds simply won't happen on most devices. google CrystalDiskMark and ValiDrive. before people here buy used, consider new $33 during BF weekend here;
https://www.amazon.com/gp/product...MD8W/?th=1

ShrewdShoe9304

Dec 01, 2025 02:43 PM

143 Posts

Joined Sep 2022

ShrewdShoe9304Dec 01, 2025 02:43 PM

143 Posts

what kind of lunatic buys a used SD card?

papitosabe

Dec 02, 2025 03:57 AM

11,245 Posts

Joined Sep 2007

papitosabeDec 02, 2025 03:57 AM

11,245 Posts

Quote from PetSpy

Would this be sufficient for a 4k dashcam?

PetSpy

Pro

Dec 02, 2025 02:17 PM

7,109 Posts

Joined Sep 2013

PetSpy

Pro

Dec 02, 2025 02:17 PM

7,109 Posts

Quote from papitosabe

Would this be sufficient for a 4k dashcam?

anything A1 or A2 should make a dashcam happy, but i would specifically look for an "Endurance" claim by the maker due to very long write periods and temperature extremes, etc. it's also a good idea to double check the dashcam makers website as they usually have a list buried somewhere as to which make/model/size micro-sd they have tested. these lists don't mean other card's won't work, simply what they can confirm is working.

Unregistered (You)

Computers Computer Accessories Flash Storage SD Cards & Micro SD Cards Occasions Christmas Tech & Electronics

Rating:	(4.8 out of 5 stars)
Reviews:	133,699 Amazon Reviews
Manufacturer:	Western Digital Technologies, Inc.
Model Number:	SDSQXAV-512G-GN6MA
Product SKU:	B09X7C2GBC
UPC:	619659189648
ASIN:	B09X7C2GBC
Brand:	SanDisk
Item Dimensions LxWxH:	0.04 x 0.59 x 0.43 inches
Item Weight:	0.030864717 pounds
Item model number:	SDSQXAV-512G-GN6MA
Manufacturer:	Western Digital Technologies, Inc.

[Resale, AC] $30.60: 512GB SanDisk Extreme microSDXC UHS-I Memory Card w/ Adapter (Used - Like New) at Amazon

$31

$50

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