1 / 7KOOTION 64GB microSDXC Cards, 3-Pack
KOOTION 64GB microSDXC cards come in a three-card pack, each with listed 64 GB storage. U3, V30, Class 10 and A1 ratings are claimed for recording and app use, while the listing also gives differing speed figures that merit attention.
At a glance
- Three-card pack with listed 64 GB capacity per card.
- The listing claims U3, V30 and Class 10 for video use, and A1 for app performance.
- Listed for smartphones, tablets and cameras, with broader compatibility claims including drones and dashcams.
- An SD adapter is claimed in the feature text, but it is not confirmed in a separate package inventory.
Reference price: $41.99
Price checked: Nov 14, 2026
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Pros and cons
Pros
- Three cards provide separate storage media for multiple supported devices or spare capacity.
- The advertised V30, U3 and Class 10 ratings make the cards a candidate for compatible recording devices.
- A1 rating is relevant to app use on devices that support running apps from microSD storage.
Technical specifications
16 specifications| Brand | KOOTION |
|---|---|
| Model | KOOTION 64GB |
| Storage listed | 64 GB |
|---|---|
| Flash memory type | Micro SDXC |
| Default format | exFAT |
| Read speed | 85 megabytes_per_second |
|---|---|
| Media speed | 35 MB/s |
| Speed class | Class 10 |
| Video speed class | V30 |
| App performance class | A1 (1500 IOPS read, 500 IOPS write) |
| Compatible devices | Smartphone, Tablet, Camera |
|---|---|
| Additional features | Drop Proof, Magnetic Proof, Water Proof, X Ray Proof |
| Connectivity | microSDXC |
| Number of items | 3 |
|---|---|
| Weight listed | 0.2 g |
| Color | White, Orange |
What to know before buying
Listing details to confirm
The listing gives conflicting speed details: read speed is listed as 85 megabytes_per_second, while media speed is 35 MB/s and marketing text says read speed up to 85MB/s. It also describes capacity as less than listed and approximately 93% usable, with the actual amount dependent on capacity algorithms and system files. Verify the intended per-card capacity and speed expectations for your device. The stated speed is based on internal testing and may vary with hardware and software.
Who is it for?
A good fit for
- People wanting three cards for compatible phones, tablets or cameras.
- Users considering microSD storage for video capture who will confirm that the device supports the card and its stated speed classes.
- Buyers looking for a listed A1 card for supported app-storage use.
Less suited to
- Buyers who need a guaranteed real-world transfer speed or a precisely stated usable capacity.
- Devices that require a different card format or capacity than microSDXC and 64 GB.
Customer reviews on Amazon
- 5 stars
75% 75% - 4 stars
12% 12% - 3 stars
5% 5% - 2 stars
2% 2% - 1 star
6% 6%
Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller share is one-star. Without customer comments, the reasons for either response are unknown. The rating figures do not establish actual card speed, usable capacity or device compatibility, so those listed specifications and conditions remain important to check.
Frequently asked questions
How many cards are included?
The title and item details indicate a three-card pack. The feature text also claims an SD adapter, but the supplied package inventory is empty, so confirm whether an adapter is included in the selected listing.
Is 64 GB the usable storage on each card?
The listing states 64 GB and says usable capacity is lower, approximately 93% of the listed capacity. Actual available space can vary with capacity calculation methods and system files.
What speed should I expect?
The listing presents 85 megabytes_per_second as read speed, gives a separate media speed of 35 MB/s, and says transfer speeds vary with hardware and software. Treat these as listing claims rather than guaranteed results.
Can these record 4K video?
The listing advertises 4K recording and U3, V30 and Class 10 ratings. Compatibility and recording performance depend on the camera and its requirements.
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Offer details
- The listed speed figures are manufacturer claims based on internal testing. Actual transfer speeds may vary with hardware and software, and the listing recommends a professional card reader for best performance.
- The listing says usable capacity is approximately 93% of the stated capacity because of differing capacity algorithms and system-file use.