

🚀 Store More, Stress Less — The Ultimate Memory Upgrade
The Miofive Ultimate Micro SD Card with USB 3.0 Type-C card reader offers 256GB of high-speed storage with 170MB/s read and 150MB/s write speeds. Certified Class 10, U3, A2, and V30, it supports 4K UHD video and app acceleration. Built tough with water, temperature, and X-ray resistance, it’s designed for dash cams, smartphones, tablets, and gaming devices. Includes a fast USB 3.0 Gen 1 card reader for effortless file transfers.
















| ASIN | B0CSYBRGC9 |
| Best Sellers Rank | #248 in Micro SD Memory Cards |
| Color | Grey |
| Customer Reviews | 4.6 4.6 out of 5 stars (65) |
| Date First Available | February 20, 2024 |
| Hardware Interface | USB 3.0 |
| Item Weight | 0.31 ounces |
| Item model number | 256GB |
| Manufacturer | Betavision Technology HongKong Limited |
| Package Dimensions | 5.94 x 3.98 x 0.47 inches |
| Read Speed | 170 Megabytes Per Second |
| Secure Digital Association Speed Class | Class 10 |
| Special Feature | Wearout Proof |
| Warranty Type | Limited |
| Write Speed | 150 megabytes_per_second |
C**.
quality
works fine and the card reader is solid
K**N
256 Micro SD Card
This is a 256gb Micro SD card with a USB C adapter. The card works great in my dash cam & the included card reader makes it easy to transfer video to my computer.
R**.
Have you seen the synonym dictionary?
Description says SD card is ultimate, exceptional, enhanced, and impressive. There are 235.5GB available on the 256GB card. I have no means of testing the speeds. Card indicates a bus speed of XC I. That's not ultimate. You need to have at least XC II for a read speed of 170 MB/s and a write speed of 150 MB/s. Of course, the package and description states "up to" those speeds. Any reading under 170MB/s and 150MB/s is therefore legitimate for their claims. It could be 10 MB/s and they'll be honest. But it won't be ultimate or any synonyms. There's also USB 3.0 which isn't as ultimate as USB 3.2. The reader cannot "satisfy all your daily needs" like the description says. It works in my laptop. It worked in two out of four phones. The reader is too wide by the USB-C. Only a thin phone case will allow it to be inserted. There's a clicking mechanism so the card doesn't fall out. Blue lights indicate when the reader is working. This reader/card performs all of its functions. However, it won't readily operate in any device, and it doesn't deserve superlatives.
A**R
Failed after 1 month
After 1 month of use in a Miofive S1 dashcam, the dashcam tells me to "use a high speed card" every few minutes. Reformatting the card did not fix the problem. Restarting the dashcam did not fix the problem. Bad quality. Deserves zero star.
S**B
great sd card at a affordable price ,works great with my nextbase dashcam
M**A
This product after installing it in camera worked for only two weeks and then developed a fault - Card error. When I contacted customer services they were very prompt in there reply and provided some helpful advice, however product was still faulty, a replacement was sent via amazon.
M**T
Great storage card, great price. It is easy to format using the Miofive camera.
R**Y
Works fine, no complaints
V**I
Very good memory card, not much to tell about it, does it job.
Trustpilot
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