TEAMGROUP A2 Pro Plus Card 1TB Micro SDXC UHS-I U3 A2 V30, R/W up to 160/110 MB/s for Nintendo-Switch, Steam Deck, Gaming Devices, Tablets, Smartphones, 4K Shooting, with Adapter TPPMSDX1TIA2V3003

This 1TB Teamgroup microsd card tested at an even better than rated at nearly 160MB/s read/160MB/s write - but ONLY with one of Sandisk UHS-I microsd readers that supported their proprietary "quickflow" tech. Summarizing from the tech summary Western Digital published for it - it requires a compatible controller on the card and then can run it at higher clocks and data rates than UHS-I should officially support. Their whitepaper shows this can allow for up to 200/140 when the UHS-I bus technically can't do anything past 104MB/s. (UHS-II cards can do just over 300MB/s read and write, for comparison). This also doesn't just work for any card - I tested some other cards I had laying around and none of them got speed boosts out of the quickflow reader except for the TeamGroup cards and the Sandisk Extremes.If you see ANY UHS-I/V30 microsd card adverising at >100MB/s, it's likely using this tech to do it. That's the hard limit on the bus interface without workarounds.My theory is that either Teamgroup is buying and selling the lower binned sandisk extreme 1TB cards (which can do 190/130 with quickflow readers only). There aren't many true manufacturers of flash memory and controllers and I have no idea if Teamgroup even makes their own memory as their site doesn't says. I wouldn't be surprised if they were just a relabel of lower cost name brand castoffs as that's not uncommon in electonics.Why am I pretty sure of this? Well I tested with three other readers - a USB 3.0 UHS-I reader without quickflow, a USB 3.0 UHS-II reader without quickflow (to rule out that this is a UHS-II card sold as I), and a built in UHS-I reader in my laptop just to rule out the usb connection. All three got pretty consistent 98-100Mbps read and write which shows a few things - they hit the max bus speed for UHS-I, aren't actually UHS-II sold as a slower tier, and that the only explanation left is that they're at the very least using controllers with support for quickflow.It's interesting that Teamgroup doesn't mention this anywhere as it's the only way to get the max rated speed . Even their website just states a vague note that they can surpass the 104MB/s bus limit on UHS-I - and as far as I know all the other results in reviews here showing 90-100 read and write are the best you can hope for with a bog standard reader. Considering they also frequently sell for 2/3 the cost of the sandisk extremes and are often the cheapest 1TB card on the market I'm pretty pleased.I've been buying these in different capacities for raspberry pi projects for a year or two and had no issues with them. An important note though is that as noted you need a quickflow compatible reader in your PC (they're pretty inexpensive), but also support on the end device which is pretty rare, if it exists in anything. For me the faster speeds to fill up the card before transferring it to the Pi is the main reason it matters. It takes a long time to transfer 1TB of data at 60-80MB/s. It is however amusing that this tech even exists when UHS-II may only require extra pins and traces on the card in some cases.

Team group has been around for some time now. They have proven themselves to be reliable.Great compatability. Easy to install. Format is fast.Great value for the money.I have had these cards for years and the 1st ones I got are still working.The speed is amazing. I just started backing these cards up from my security cameras on my pc. Now you don't really need these speeds for security cameras, but its about how fast they back up to other media. Sitting there for 6 hours or less than a hour. That is why you want these cards.If you are going to use them for video or even high mp cameras for stills these are a must have. That is if you have a camera that uses microsd.

Perfect for recording with my gopro or insta. So far compatible with all my cameras. No need for the adapter yet, size and fit are good for my cameras and its super easy to use.

I had bought real inexpensive 1 TB micro SD cards and Got What I Paid For!. Did not lose a whole lot of money on them; they were worthless pieces of junk and inuseable. So be warned!Saw this card and diligently went through all the reviews and then others I came across on the web. I cannot comment on the phtographic aspect since my purposes were for Documents only. Whereas the inexpensive card would not complete the f ile/document transfer of 54GB; this TeamGroup SD card finished quickly within 45minutes!Checking over the transfered files/documents, there were no errors. I highly recommend this card for your file/document transfers; though, again, I cannot comment on the photographic usage of this card. More times than not, U truly get what U pay for; and in this case the higher - though affordable- price was worth the effort and time.

I bought a TeamGroup Pro Plus 1TB MicroSD card back in 11/2023 for my Steam Deck OLED. It seemed to work fairly well for a few months.By the time I installed Diablo IV on it 7/2024, the card started showing massive issues. I noticed writes seemed to take forever, with patches for games on the SD card taking outrageous amounts of time, like 8-12 hours. Clearly, something was going wrong. Another abnormality was with games taking forever to load data; I noticed significant "pop-up" textures and world objects in Baldur's Gate 3. I considered the problems bad enough to make the games nearly unplayable.I decided to finally replace the card with a Samsung 1TB since those finally became available this year. I copied the contents from the TeamGroup card over to the Samsung card, which took around 15 hours, with reads averaging 15-20mb/s. Clearly a quarter of the speeds it should have been reading. Just to make sure, I tested the card with KDisk, and confirmed it's only reading at 28mb/s peak, and writing under 1mb/s peak. As best I can tell, the SD card is dying.I formatted it on a Windows PC with exFAT and tested once more with CrystalDiskMark, and it confirmed the awful read/write speeds, the same as the Steam Deck's KDisk benchmark. I put the card back into my Steam Deck, reformatted to ext4, (which took like 15 minutes, significantly longer than it did on first format) and it still benchmarked at awful speeds, even slower than the first tests.One minor side note: The 1TB Samsung Card formats with 8GB more storage than the TeamGroup 1TB. I'm sure it's the usual silliness of, "we have different definitions of 1TB" I usually hear. That's slightly less than a 1% difference, but it's still quantifiable.Summary: Maybe I just got a bad card. I'm willing to update this score higher if the warranty service is good, and the replacement works better.Edit 11-1-24: I sent the card in on warranty, and paid the cost to ship the defective card. To their credit, the RMA process was fast and they sent me a replacement within a week of receiving the bad card. The replacement works much, much better than the original as pictured. My best advice is to be aware these cards can overheat and degrade. Don't keep critical info on them, and if you do, have backups. Warranty service was good, so I'll raise my rating to 4 stars. I still recommend Samsung's 1TB card over Teamgroups, even with the big price difference, but if you need cheap low-priority storage, this should be fine.