Silicon Power 1TB Superior Micro SDXC UHS-I (U3) 4K A2,High Speed MicroSD Card with Adapter SU001TBSTXDA2V20AC
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Availability:
Only 2 left in stock, order soon!
Arrives
Tuesday, Jun 2
Capacity: 1 TB
Style: microSD UHS-I A2
Features
- [NOT compatible with Switch2] Please note that this product is not a microSD Express card and is not compatible with Switch2 for game storage or save data. If used in the Switch2, it may only support limited functions such as storing screenshots or videos, but will not allow game installation or save file access.
- Meets the new A2 standards for app performance, delivering minimum random read of 4,000 IOPS and random write of 2,000 IOPS, as well as sustained sequential speeds of at least 30 MB/s
- Important Notice: Nintendo-Switch User: According to device manufacturer website; A system upgrade is necessary if you own a Nintendo-Switch in order to use a microSDXC card on the device. Steam Deck users: For optimal gaming performance, including the ability to store and load video games, we suggest using a Gen4x4 2230 SSD.
- Compatibility for Smartphones: S20, S20+, S20 ultra 5G, S10 lite, S10, S10+ A22, A22 5G, A52 5G, A32 5G, A52, A72, A32, A02s, A12, A21, A71 5G, A51 5G, A20s, Note 10+, J4 Core, J8, J7 Star, J7, Note 10 Plus.
- Please contact customer service if your device is not on the above list or visit the compatibility page of our official website.
Description
The Superior Series memory cards featureA New Standard For App Responsiveness With an advanced A2 rating, the Superior microSDXC UHS-I card is specifically designed for app enhancement. Minimum random read of 4,000 IOPS and random write of 2,000 IOPS equate to lightning-fast launches and smoother operation. This translates to an overall superior user experience on your Android-based smartphone, tablet, and other app-running mobile devices. It also saves internal storage space on your device.
Brand: SP Silicon Power
Model Name: Superior
Flash Memory Type: Micro SDXC
Memory Storage Capacity: 1 TB
Compatible Devices: Camera, NOT compatible with Switch2, Smartphone
Flash Memory Type: Micro SDXC
Memory Storage Capacity: 1 TB
Compatible Devices: Camera, NOT compatible with Switch2, Smartphone
Additional Features: Shock Resistant
Read Speed: 100 Megabytes Per Second
Media Speed: 80 MB/s
Hardware Connectivity: microSDXC
Secure Digital Association Speed Class: Class 10
Warranty Type: Limited
Color: Grey
Brand: SP Silicon Power
Model Name: Superior
Model Number: SU001TBSTXDA2V20AC
Manufacturer: SP Silicon Power
UPC: 886576083766
Mfr Part Number: SU001TBSTXDA2V20AC
Warranty Description: 5-year limited warranty
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Capacity: 128 GB
Style: microSD UHS-I A2
I bought the Silicon Power 128GB microSDXC card expecting that might have low performance or might be even fake at this price range—but running Fake Device Test proved otherwise: Average Write Speed: 39.32 MB/s Average Verify Speed: 85.38 MB/s No errors during full 124.36 GB write-and-verify sequence That tells me this card is legit, not fake. Is it hitting the advertised 80 MB/s write? No—not in my test—but the discrepancy likely reflects file handling and real-world usage rather than a counterfeit product. On my Galaxy Tab S9, video playback is smooth, apps run flawlessly, and no glitches or slowdowns so far. I'm completely satisfied with its reliability and performance in everyday use. And lets not forget that read speed is pretty close to 100MB/s. ✅ Why I like it: real-world stability, zero verification errors, works flawlessly with my galaxy Tab S9. 🔄 Room for improvement: Write speed below spec—but still enough for 4K video and app storage. Overall: a genuine, affordable, and trustworthy card for media and tablet use. ⭐ 4 Other Great Options at This Price Range But in case you want more options to choose, Here are four solid alternatives worth considering: 1. Amazon Basics Micro SDXC (A2 U3, up to 100 MB/s) A budget-friendly and highly reliable card—with IPX6 water/shock/X-ray resistance and broad compatibility. And in my experience Amazon products really deliver what they say. 2. SanDisk Ultra 128 GB (UHS‑I, up to 140 MB/s, A1) The most famous and well known brand in memory, This one offers fast read speeds and trusted brand reliability for Full HD tasks—great also for tablets and 4K use. 3. Samsung EVO Select 128 GB (UHS‑I U3 V30, up to 160 MB/s, A2) Probably the best brand in memory, High endurance and blazing read/write speeds—ideal for demanding mobile, tablet, or Nintendo Switch users. 4. PNY Elite‑X 128 GB (Class 10, U3 V30, A1) This brand is well known for it's competitive performance while maintaining the price. Fast and dependable, with consistent read/write performance—excellent for 4K media and app storage. 📝 Final Thoughts Silicon Power: Verified real, performed well in tests, smooth real-world use—especially for video and apps. Alternatives: Amazon Basics offers great durability and price-value; SanDisk and Samsung bring top-tier brand trust and higher speed; PNY delivers solid mid‑range reliability. If you’re price-sensitive but want peace of mind, Silicon Power is a legit pick. If speed or brand reputation matters more to you, one of the other four might serve better depending on your device.
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Reviewed in the United States on August 3, 2025 Reviewed in the United States on August 3, 2025 by Yas M.
Capacity: 1 TB
Style: microSD UHS-I A2
This SDXC card is an excellent choice for anyone who needs dependable local storage. It provides plenty of extra space for smartphones or tablets, making it easy to store a large collection of videos, photos, and music — perfect for those who prefer not to rely on an internet connection. The card comes pre-formatted in the ExFAT file system, which works well with most modern devices. Just note that if your device requires a different format (for example, even new Fire tablets need FAT32 for a “combined” internal storage mode), you may need to reformat it. Performance-wise, it’s noticeably fast and handles large files and high-definition videos without any issues. Overall, a reliable, affordable (price-wise), and practical option for expanding storage on phones or tablets compatible with the SDXC cards. Highly recommended!
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Reviewed in the United States on December 17, 2025 by smatsum2
Capacity: 1 TB
Style: microSD UHS-I A2
It's read and write speeds are faster than regular A1 cards on the market. The storage capacity is true to advertisement. It's not fake in any way. They're not lying about how good this is. It is simple to use like any other micro sd card and it comes with an adapter so that you can use it like the regular bigger SD cards if you're in need of that. Packaging is easy to open. It keeps up well with taking videos with your camera. Seems to have no issues. Fresh brand new card with 0 writes. You can't go wrong with buying this.
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Reviewed in the United States on May 14, 2026 by Ah 2.0
Capacity: 512 GB
Style: microSD UHS-I A2
I absolutely love these cards. I collect retro gaming handheld devices and they each require a new card because the ones they initially come with are very bad and corrupt almost immediately. I have these cars on my Switch, Steam Deck Oled, Trimui Brick, R36S, Nintendo DSI XL, PSP 2001, Anbernic 406H, Anbernic 405M, Anbernic RG 40v, and Trimui Smart Pro. They work wonderfully fast and have never failed, not even once. I highly recommend this brand above all others not just for its affordability but their reliability. You can’t go wrong with these! Why did you pick this product vs others?: Because of price and reliability. Transfer speed: They are fast. Storage capacity: Ample room to add as many ROMS I own for my dedicated devices. Design: It’a the same as the other cards. Card quality: Some of the highest quality micro SD cards you’ll find.
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Reviewed in the United States on July 9, 2025 by Mozart’s Star
Capacity: 1 TB
Style: microSD UHS-I A2
Size legit, but it becomes very slow to transfer larger files.
Reviewed in the United States on May 16, 2026 by Herb
Capacity: 128 GB
Style: microSD UHS-I A2
I’m really impressed with this SD card! I picked it up for my camera, and it’s been working flawlessly. The transfer speeds are legit—I can move 4K video files over in no time without any hiccups. It’s definitely a solid, budget-friendly alternative to the more expensive brands. If you need a fast, reliable card for your phone or camera, this is a total win. 5 stars for sure!
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Reviewed in the United States on April 19, 2026 by ANH NGUYEN
Capacity: 512 GB
Style: microSD UHS-I A2
I’ll be honest, I was a little nervous buying a "budget" SD card for my Steam Deck. I usually stick to the big names like Samsung or SanDisk because I’m terrified of losing data. But when I saw the price of this Silicon Power 512GB card compared to the big brands, I decided to take the risk. The value proposition is undeniable. You are getting massive 512GB storage (A2 rated!) for significantly less than the competition. I ran some speed tests, and the performance is virtually identical to my more expensive cards. Games on my Steam Deck load instantly, and I haven't noticed any lag or stuttering, which is exactly what the "A2" rating promises (better app performance). It’s also V30 rated, meaning it handles 4K video recording without dropping frames. I threw it in my GoPro for a weekend trip just to test it, and it recorded high-bitrate footage perfectly. The included adapter feels a little cheap. It works fine, but the plastic feels brittle compared to others I’ve used. Also, like all drives, the actual usable space is around 476GB after formatting—not a fault of the card itself, but always annoying when you see "512GB" on the box. I’ve been using this heavy for about two months—downloading massive AAA games, deleting them, and re-downloading—and it hasn't hiccuped once. It runs cool and fast. I realized I was paying extra for other brands just for the logo, not for better performance. If you need to expand storage for a Nintendo Switch, Steam Deck, or tablet, stop overpaying. This card is reliable, fast, and unbeatable for the price. Highly Recommended.
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Reviewed in the United States on January 2, 2026 by Johnny V
Capacity: 1 TB
Style: microSD UHS-I A2
Started off ok enough but once the card had only about 10% space left, performance dropped off a cliff. Transfer rates to the card fluctuate drastically far more than what is typical, no matter the size of the files. Deleting files to make more space didn't restore write performance to what I initially saw., which was average but appropriate for the spec. Now it's below average and unstable. I fear the card is already failing or defective. But since you can only really check format size on SD cards, I'll have to roll the dice and hope it doesn't fail altogether. This will be my last Silicon Power purchase, though. I've used them in the past just fine but things change and it seems they have.
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Reviewed in the United States on January 19, 2026 by Matt