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Transcend TS512GUSD300S-A,512GB microSD w/ adapter UHS-I U3 A1
SKU: 12304743734

Transcend TS512GUSD300S-A,512GB microSD w/ adapter UHS-I U3 A1

Sale price$29.67 Regular price$32.97
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Transcend TS512GUSD300S-A,512GB microSD w/ adapter UHS-I U3 A1USD300S Want to save space on your mobile device by running apps from a memory card? Transcend's microSDXC SDHC 300S cards are the right choice! Compliant with the latest speed class, the cards boast excellent random read write speed, perfect for retrieving small pieces of data from random locations and speeding app launch time. A good fit for mobile app storage Its common for users to install and run mobile apps from microSD cards in order to free

USD300S

 

Want to save space on your mobile device by running apps from a memory card? Transcend's microSDXC/SDHC 300S cards are the right choice! Compliant with the latest speed class, the cards boast excellent random read/write speed, perfect for retrieving small pieces of data from random locations and speeding app launch time.

 


A good fit for mobile app storage

 

It’s common for users to install and run mobile apps from microSD cards in order to free device memory. Random read/write performance is thus crucial. Transcend's microSDXC/SDHC 300S memory cards are a great fit for storing mobile apps.

 

Introducing Application Performance Class

 

The Application Performance Class was introduced to adapt this new trend. Transcend's microSDXC/SDHC 300S memory cards meet the new A2 standards, delivering minimum random read of 4,000 IOPS and random write of 2,000 IOPS, and sustained sequential speeds of at least 10MB/s.

A2 compliance applies only to 1TB capacity card.

 


Show the transfer capabilities

 

Transcend's microSDXC/SDHC 300S memory cards meet both the UHS Speed Class 3 (U3) and the UHS Video Speed Class 30 (V30) standards for 4K Ultra HD video recordings, with read/write speeds of up to 100MB/s and 85MB/s respectively.

U3 and V30 compliance applies only to 128GB-1TB capacity cards.

 

Store as many as you wish

 

In addition to excellent random read/write performance, Transcend's microSDXC/SDHC 300S memory cards come in up to 1TB storage capacity, allowing you to keep more digital files and apps at hand!

 

Built for extremes

 

To deliver the best performance and stability, Transcend's microSD memory cards are tested to withstand extreme conditions. They are temperature resistant, waterproof, shock proof, X-ray proof, and static proof.

 

RecoveRx software

 

Transcend offers exclusive RecoveRx software, a free data recovery utility that allows you to search deep within a storage device for traces of erased files including digital photos, documents, music and videos.

Learn more

 

Specifications

Appearance

Dimensions 11 mm x 15 mm x 1 mm (0.43" x 0.59" x 0.04")
Weight 0.4 g (0.01 oz)

Storage

Capacity
  • 4 GB/
  • 8 GB/
  • 16 GB/
  • 32 GB/
  • 64 GB/
  • 128 GB/
  • 256 GB/
  • 512 GB/
  • 1 TB
Flash Type
  • 3D NAND flash
  • 2D NAND flash

Operating Environment

Operating Temperature -25°C (-13°F) ~ 85°C (185°F)
Operating Voltage
  • 2.7V ~ 3.6V

Performance

Speed Class
  • UHS-I U3
  • UHS-I U1
  • Class 10
  • V30
  • A1
  • A2
Sequential Read/Write (CrystalDiskMark)
  • 1 TB
    Up to 100/85 MB/s
  • 512 GB
    Up to 100/85 MB/s
 
  • 256 GB
    Up to 100/40 MB/s
 
  • 128 GB
    Up to 100/35 MB/s
 
  • 64 GB
    Up to 100/20 MB/s
 
  • 32 GB
    Up to 100/20 MB/s
 
  • 16 GB
    Up to 95/10 MB/s
 
  • 8 GB
    Up to 20/10 MB/s
 
  • 4 GB
    Up to 20/10 MB/s
Insertion/Removal Cycles 10,000
Note
  • Speed may vary due to host hardware, software, usage, and storage capacity.

Warranty

Certificate
  • CE/
  • UKCA/
  • FCC/
  • EAC/
  • RCM
Warranty
  • Five-year Limited Warranty
Warranty Policy
  • Please click here for more information about the Transcend Warranty Policy.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12304743734

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4.1 ★★★★★
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W
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Wes
Dallas, US
★★★★★ 5
Favorite daily use watch
Color: Blackout
Literally the best watch ever. Super durable. This is my second or third one. The Battery will last years at a time and doesn't take an expensive battery. The buttons are laid out intelligently and are intuitive to use. The strap will eventually break before the watch itself will. Though it has all the stop watch features, it's not too bulky. Also, it takes the time easily and keeps it.
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Reviewed in the United States on December 19, 2025
R
Verified Purchase
robert schroll
Charlottesville, US
★★★★★ 5
Great product
Color: Black/Yellow Accent
Watch and service was great. I would recommend product to others.
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Reviewed in the United States on May 27, 2026
B
Verified Purchase
BCardot
New York, US
★★★★★ 4
No complaints after use
Color: Black/Yellow Accent
Always been a fan of Ironman watches especially the original. The negative display threw me off for a few days but getting used to it. Love the fit and size of it. Not to mention it's extremely light and you barely notice it after a bit. For under $40 if it malfunctions in a year or two I'll just buy another or one similar.
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Reviewed in the United States on November 4, 2025
J
Verified Purchase
Jeffrey
New York, US
★★★★★ 5
Bang for the buck
Color: Blackout
Let me previce this review by stating that I have had multiple fitness watches including Garmin suunto Timex and Casio. This watch has some limitations and I will get to them. The first thing is the design and functionality. The picture doesn't do this watch justice. It is sleek. Small enough to not be gaudy. But large enough to look appropriate regardless of your body size. I am 6' 180 lbs and its perfect. The functionality is great. Some watches require a college degree but this watch is simple to program and switch through modes. It has a lap counter countdown timer stop watch as well as time day date etc. It also has more features that don't interest me for fitness so I won't go into them. One complaint other reviewers have stated is with the black background it can be difficult to see display. To them I would reply the top right button is a light. Push it once to illuminate the display. Problem solved. Having a black background does make the display less visible. That's obvious to me but perhaps not everyone. With that being said I only have to use the light if I'm in a dark area. In normal room lighting it is easy to see. This watch does not have GPS capabilities which other watches I've had has. Add another zero to the price of this watch and you can have GPS too. I use this watch mainly for indoor fitness inc swimming and running on an indoor track and use my garmin outdoors. This is a great everyday watch and a great price. No issues no complaints.
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Reviewed in the United States on February 28, 2015
B
Verified Purchase
Bert
Pawtucket, US
★★★★★ 5
6 years and still going
Color: Blackout, Color: Blackout
Owned for 6 years and still going strong. Worn daily, including showers. The only time I take it off is to sleep. The face is scratched up and some buttons worn smooth (I wear it on the inside of my wrist). A few tiny cracks are beginning to form on one of the wristband pieces. Replaced the battery after about 3 years. It has three alarms and I use them regularly. You can choose to set each alarm for daily, weekdays, or weekends. I also use the timer a lot. Indiglo gets used every morning and many evenings. You can disable modes that you never use, so you only see what you want. I never use chronograph, so I have that disabled. Incredible watch.
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Reviewed in the United States on May 11, 2026

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