Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 512GB, Black

This Amazon Basics micro SDXC card offers impressive read speeds up to 100 MB/s and performs reliably for storing photos, videos, and apps. The included full size adapter makes it easy to use with a variety of devices. It feels well made and durable, and the A2 and U3 ratings ensure smooth performance for high-demand applications. Overall, it is a solid, dependable memory card at a good value.

I purchased this Amazon Basics 128GB Micro SDXC memory card specifically for my child’s bedroom security camera, and it’s been absolutely perfect for the job. 💾 Plenty of Storage With 128GB, it can hold days’ worth of video footage without needing to constantly format or transfer files. It’s ideal for continuous loop recording and works seamlessly with our Wi-Fi-enabled indoor camera. 🚀 Fast & Reliable Performance Read speeds up to 100 MB/s are no joke! Transferring footage to my computer is quick and smooth—no freezing or lagging. Rated A2 and U3, so it’s fast enough for higher-demand uses too, like 4K video or mobile apps if needed. 🔌 Full-Size Adapter Included The included full-size SD adapter is really handy—I’ve used it to plug directly into my laptop’s SD slot for easy access to footage. No extra gear needed. 🔒 Durable and Trustworthy It’s been running non-stop in the camera for weeks with no errors. No corrupt files, no disconnections. It just works. Exactly what you need when it’s monitoring your child’s space. ✅ Final Thoughts: For the price, you honestly can’t go wrong. Amazon Basics has knocked it out of the park with this memory card—solid quality, great speed, and totally dependable. Whether it’s for cameras, phones, or other gadgets, this card is a fantastic choice. I’d definitely buy another for other devices in our home.

Although advertised as 128GB mine seems to be missing a bit of memory, around 8GB worth. When I formatted the card and checked the available disk space I was taken aback when I saw there was 120GB to play with, rather than the 128GB I expected. A little difference between the advertised memory and actual memory is common and expected, but not an 8GB difference. I needed a fast micro SD card to record 4K video footage so the V30 rating stamped on this micro SD card was a big factor in buying it. After using the card to record 4K footage up to 30fps using my Sony RX0ii, 4k footage up to 120fps using my Go Pro 10 and 5k footage up to 60fps using my Go Pro 10 I can confirm this card is more than fast enough for my needs. This micro SD card works just as well as my premium branded micro SD cards however at £14.99 it is a fraction of the cost. The Amazon Basics micro SD card may look cheap (which it most definitely is) and nasty (which it most definitely is not) it’s performance is superb. I was always led to believe you need to spend a fair amount of money to get good quality micro SD cards however this Amazon Basics micro SD card clearly shows this is not the case. Overall a top quality micro SD card that is highly recommended. I had to knock a star off for the significant memory discrepancy, which was disappointing.

Perfect quality and value. Perfect for extra storage for my CCTV

I was surprised as to how fast this cards write speed was. Works flawlessly in my Fiio M21. I managed to fill 128 GB card up with my music files in 35 minutes. For an A2 card it represents excellent value for money.

Works perfectly with tapo tp-link cameras, which are very picky to using SDXC cards. A good alternative to the usual brands. Buy this high speed over the regular speed.

I’ll be honest, I usually stick with the well-known memory card brands, but I decided to give this Amazon Basics 256 GB MicroSD a try — and I’m really glad I did. It’s been fast, reliable, and handled 4K video and large file transfers without any issues at all. The read and write speeds are right up there with the branded options I’ve used before, and it hasn’t given me a single error so far. For the price, it’s a real bargain. Honestly, I was surprised by how solid it feels and how consistent the performance has been. Amazon’s done a great job with this one — it’s a budget option that doesn’t feel budget at all.

Good SD Card, works perfecy

Ok

Chegou em otimas condições, não tive como testar muito mas consegui saber que funciona.

Fast micro sd card. Uses for video surveyance.

Been using it for 2 months now, have not faced any issue, looks good, nice quality, have not faced any data loss, supports most android phones that can support high memory.

This is a fairly (and surprisingly) decent Micro SD/uSD card reader from Amazon Basics that's reasonably well-made and for the most part works as expected without issues. It's reasonably small and compact although far from the slimmest that I've come across and tested due to its odd and slanted shape that's just weird. It has a typical plastic shell that's certainly not something to write home about; however, it does have a spring-loaded card slot, which is a surprise to me (and indeed a pleasant one at that). As for its dimension, it's about 25 mm in length at the shortest side and 29 mm at the longest. As for width, it's about 18 mm at the shortest and 23 mm at the widest. Finally, the thickness is about 11 mm; however, the slanted side has a length of 12 mm measured at the surface. As far as data transmission is concerned, it's able to provide the [nearly] max speed supported by the various Micro SD cards that I've tested and the best result is about 175.25 MB/s for read and 155.85 MB/s for write, which is again fairly good. This particular card reader also supports OTG that many others don't, so that's certainly a point in its favor. Before purchasing this, I tried about half a dozen UHS-I card readers from various well-known brands including Kingston, UGREEN, and TP-Link etc. just to name a few. However, most of them weren't able to achieve speeds faster than 104 MB/s (which is the max speed for UHS-I), and for the few that could go beyond 104 MB/s, they were capped at roughly 150 MB/s, which was weird. The max speed for UHS-I is 104 MB/s and that limit is increased to 156 MB/s (full-duplex) or 312 MB/s (half-duplex) for UHS-II; however that requires the use of an additional row of connectors on the cards as well as the card readers that relatively few have adopted even today. ★ In the meantime, proprietary technologies have been developed by SanDisk and others to bump up the existing 104 MB/s limit to something much higher, including DDR200 (170 MB/s) and DDR225 (200 MB/s) and so on. This is the ONLY card reader that I've tested in the last month that's actually able to achieve 175.25 MB/s (max 180 MB/s for the card in question) via UHS-I interface. Kingston used to have one that actually worked (from about 3+ yrs) but that's no longer the case with the new version that's available at the moment, so if you need a UHS-I card reader that actually works to go beyond 104 MB/s at the moment, this is THE card to get. ≡ Value All things considered, this is a fairly decent uSD/Micro SD card reader that's fairly small/compact and works as expected without issues. It's the ONLY UHS-I card reader (out of the half a dozen or so cards tried) that's able to go beyond 104 MB/s (max 200 MB/s claimed) imposed by the standard. I just wish that it has a slimmer and rectangular shell instead of one that's oval and slanted at the rear, which is just odd and weird. It's reasonably priced at $10 for what it provides and its overall build quality, features (i.e. DDR225, 200 MB/s), usability, versatility, and performance.