Yes. Actually, it is at least 3x more capable at U3 than Class 10. Class 10 is 10 MB per second. There is a new "U" series defined for video, that extends the old class system. U1 has the same rate as Class 10. U3 is 30 MB per second. The Extreme is a U3 card.

Can i record music on this card? it so, how many hours of music will it hold? thank you, brian

Yes, you can record any digital files on this card. It is extremely fast, and can even handle 4K videos, and digital images. It's rated very fast. So, music away! The hours of recording have to do with the quality and size of the files. I would suggest that you record onto your PC/Laptop, etc. Then, transfer to this card. The card will handle recording directly, but you might like to do some editing in between. Here's a rough estimate of file size vs storage space: https://qph.fs.quoracdn.net/main-qimg-689dff666b8e146d2e19bce49ddde53e

can it be used for the nintendo switch?

According to Nintendo, the Switch can accept microSD and microSDXC cards, and supports up to 2TB of total storage. This card is fast and should enhance your gaming experience.

How come this sd card written shipping fed is free but it still charge after i process the payment?

$25.00 shipping though is super overkill in my opinion for a dang SD card. Prime member or not I would return it for having the audacity to charge that much for such a small/lightweight item.

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🚀 Elevate your storage game — don’t just save data, own the speed!

ULTIMATE DURABILITY - Built tough with drop, water, temperature, wearout, and X-ray proof design for worry-free adventures
BLAZING FAST TRANSFERS - Save time with up to 190MB/s read speeds powered by SanDisk QuickFlow Technology
PRO LEVEL WRITE SPEEDS - Capture every moment with up to 130MB/s write speeds for seamless 4K UHD video and burst photos
UNIVERSAL COMPATIBILITY - Includes SD adapter for effortless use across cameras, drones, and Android devices
APP OPTIMIZED PERFORMANCE - Rated A2 for faster app launches and smoother in-app experiences on your smartphone or tablet

The SanDisk 256GB Extreme microSDXC card delivers professional-grade performance with up to 190MB/s read and 130MB/s write speeds, optimized for 4K UHD video and high-res photography. Featuring A2 app performance and a rugged, durable design, it’s perfect for on-the-go professionals who demand reliability and speed. Includes an SD adapter and RescuePRO Deluxe software for data recovery, backed by a lifetime warranty.

Specifications

Colour	multi
Special features	Drop Proof, Temperature Proof, Water Proof, Wearout Proof, Write Protect Switch, X Ray Proof
Reading speed	190 Megabytes Per Second
Item weight	10 Grams
Warranty type	Lifetime
Writing speed	130 Mo/s
Hardware interface	microSDXC
Secure digital association speed class	Class 10
Product dimensions	15L x 12W centimeters
Manufacturer	San-Disk
UPC	619659188504
Global Trade Identification Number	00619659188504
Item model number	SDSQXAV-256G-GN6MA
Color	multi
Are Batteries Included	No
Lithium Battery Packaging	Batteries packed with equipment
Number Of Lithium Ion Cells	5
Number of Lithium Metal Cells	5
Item Weight	10 g

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