What's the difference A1 A2 ?

A1 read speed is up to 100mb/s while A2 is at up to 160mb/s, write speed for both is at 90mb/s. A2 is also optimized for cell phone applications.

Is this product counterfeit? if i order and try to register it on sandisk’s website for use with recoverypro, will it be accepted?

Your concerns are valid in light of the fact that on a popular product bidding site (rhymes with "flea") it was once estimated that 95% of all memory offered on the site were counterfeits. Amazon is not off the hook either. I have seen sellers posting memory at ridiculous prices, such as a 1TB unknown-brand microSD card for $50. Assuming you are not able to perform card tests, here's how I buy memory: - I buy ONLY FROM ESTABLISHED sellers (defined as a seller who specializes only in card products, has hundreds of five star ratings, has a history of good comments and reviews, and has a no-questions-asked return policy). - I now buy ONLY the brand names. Samsung, SanDisk, PNY, Kingston, etc. (stick to the brand names, that's half the battle won). - When you get the card check closely for evidence of repackaging (soiled card, fingerprints or smudges, factory seal broken, etc.) If you see such evidence, send the card back. - Assuming you know how to check the card "properties" on your computer or phone, so that. Counterfeiters can fool this system, but it is better than nothing. - Finally, perform a few tests: 1) transfer files TO the card, that's testing the write speed. Windows will show you the transfer/write rate. Assuming there's no bottlenecks in your card reader or on the PC, you should see transfer speeds close to what's claimed on the package and website ad; and 2) transfer files from the card to the PC. See how fast a transfer or "upload" takes. - Finally, use a FREE (German) program called "h2testw" that works on MS Windows (has an English language option when you open it). That will test all elements of your card. Pop the card into the reader, connected to your PC, open h2testw and test away.

Can this handle 60 fps 4k?

Yes, It does 4K 60fps with no issues. I use it in my GoPro Hero 6 and have never had issues. Also works great for 2.7K 120fps.

Does the 1tb card work on Nintendo Switch?

Yes, the 1TB SanDisk "Extreme" card works on the Switch. All sizes and speeds of MicroSD, up to 2TB (whenever those get made), will work. Nintendo recommends a speed of at least Class 10 and UHS-I, though. That being said, the Switch's MicroSD card reader can only read at speeds up to 104MB/s. The "Extreme" and "Extreme Pro" cards are rated up to 160MB/s and 170MB/s, respectively. The Switch also cannot take advantage of the "A2" and "V30" specs, so buying the *fastest* card isn't necessarily the best option. The cheaper SanDisk "Ultra" cards (rated up to 120MB/s) will work perfectly fine, leave enough comfortable overhead for the speed, and save you money. Other reputable MicroSD card brands are: Kingston, Lexar, PNY, and Samsung.

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SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA

SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA

Product ID: 77104410

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Details

Brand
SanDisk
Model Name
Extreme
Flash Memory Type
Micro SD Micro
Memory Storage Capacity
256 GB
Compatible Devices
Camera

⚡160MB/s read speed

✍️90MB/s write speed

🛡️Durable: water, shock, temp & x-ray proof

Description

🚀 Store More, Shoot Faster, Last Longer — The Ultimate MicroSD for the Ambitious Creator

RUGGED RELIABILITY - Built tough to withstand extreme temperatures, water, shocks, and even X-rays — perfect for on-the-go pros.
RAPID CAPTURE READY - 90MB/s write speed ensures you never miss a moment with fast continuous shooting.
APP PERFORMANCE BOOST - A2 rating accelerates app loading and multitasking on compatible smartphones and devices.
BLAZING FAST TRANSFERS - Up to 160MB/s read speeds save you precious time moving 4K UHD videos and high-res images.
4 K UHD FULL HD CERTIFIED - U3 and V30 ratings guarantee smooth, stutter-free video recording for professional-grade content.

The SanDisk Extreme 256GB microSDXC card delivers ultra-fast 160MB/s read and 90MB/s write speeds, optimized for 4K UHD video and high-res photo capture. Rated A2 for enhanced app performance, it’s engineered to endure harsh conditions including water, shock, temperature extremes, and X-rays. Ideal for professionals and content creators seeking reliable, high-capacity storage that keeps pace with their demanding workflows.

Specifications

Color	Brown, Red
Special Feature	Drop Proof, Temperature Proof, Water Proof, X Ray Proof
Read Speed	160 Megabytes Per Second
Item Weight	4.54 g
Warranty Type	Lifetime
Write Speed	90 mbs
Hardware Interface	microSDXC
Product Dimensions	0.04"L x 0.59"W
Manufacturer	Western Digital Technologies Inc.
UPC	619659169732
Global Trade Identification Number	00619659169732
RAM	256 GB
Memory Speed	160 Megabytes Per Second
Item model number	SDSQXA1-256G-GN6MA
Item Weight	0.16 ounces
Item Dimensions LxWxH	0.04 x 0.59 x 0.43 inches
ASIN	B07FCR3316
Is Discontinued By Manufacturer	No
Date First Available	July 13, 2018

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