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Silicon Power 128GB Superior UHS-I microSDXC Memory Card With SD Adapter, Micro SDXC [64GB 1TB], Single S Only, A2 Class 10 U3 V30, 100MB/s
The 128GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life, allowing you to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts. Built with a storage capacity of up to 128GB, this card features a maximum read speed of 100 MB/s, a maximum write speed of 80 MB/s, and a thanks to its V30 / U3 rating, write speeds are guaranteed not to drop below 30 MB/s. If your device does not support V30 / U3, there is backward compatibility for Class 10 / U1 devices. Aside from support for UHS-I, V30, and U3, Silicon Power built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. Designed and tested to withstand harsh environments, Silicon Power's 128GB Superior card is resistant against water, shock, and x-rays, as well as temperature extremes of 32 to 158°F. It can also endure a minimum of 10,000 insertions. So that this card may be used in SD-compatible devices, a microSD to SD adapter is included.
The 128GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life, allowing you to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts. Built with a storage capacity of up to 128GB, this card features a maximum read speed of 100 MB/s, a maximum write speed of 80 MB/s, and a thanks to its V30 / U3 rating, write speeds are guaranteed not to drop below 30 MB/s. If your device does not support V30 / U3, there is backward compatibility for Class 10 / U1 devices. Aside from support for UHS-I, V30, and U3, Silicon Power built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. Designed and tested to withstand harsh environments, Silicon Power's 128GB Superior card is resistant against water, shock, and x-rays, as well as temperature extremes of 32 to 158°F. It can also endure a minimum of 10,000 insertions. So that this card may be used in SD-compatible devices, a microSD to SD adapter is included.
The 128GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life, allowing you to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts. Built with a storage capacity of up to 128GB, this card features a maximum read speed of 100 MB/s, a maximum write speed of 80 MB/s, and a thanks to its V30 / U3 rating, write speeds are guaranteed not to drop below 30 MB/s. If your device does not support V30 / U3, there is backward compatibility for Class 10 / U1 devices. Aside from support for UHS-I, V30, and U3, Silicon Power built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. Designed and tested to withstand harsh environments, Silicon Power's 128GB Superior card is resistant against water, shock, and x-rays, as well as temperature extremes of 32 to 158°F. It can also endure a minimum of 10,000 insertions. So that this card may be used in SD-compatible devices, a microSD to SD adapter is included.
The 128GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life, allowing you to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts. Built with a storage capacity of up to 128GB, this card features a maximum read speed of 100 MB/s, a maximum write speed of 80 MB/s, and a thanks to its V30 / U3 rating, write speeds are guaranteed not to drop below 30 MB/s. If your device does not support V30 / U3, there is backward compatibility for Class 10 / U1 devices. Aside from support for UHS-I, V30, and U3, Silicon Power built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. Designed and tested to withstand harsh environments, Silicon Power's 128GB Superior card is resistant against water, shock, and x-rays, as well as temperature extremes of 32 to 158°F. It can also endure a minimum of 10,000 insertions. So that this card may be used in SD-compatible devices, a microSD to SD adapter is included.
in 5 offers
The lowest price for Silicon Power 128GB Superior UHS-I microSDXC Memory Card With SD Adapter, Micro SDXC [64GB 1TB], Single S Only, A2 Class 10 U3 V30, 100MB/s right now is $22.95 at Mwave Australia, compared across 5 retailers.
The all-time low was $18.00 on 17 July 2025 — today's price is 27% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 May 2026.
Last updated at 08/05/2026 20:57:01
Silicon Power Superior 128GB microSDXC A2 Memory Card
Silicon Power 128gb Microsdxc Uhs-i Micro Sd Card With Adapter, Up To
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Silicon Power Superior 128GB V30 A2 4K UHD with Adapter Micro SDXC - Micro SD Cards
Delivery $11.55
Silicon Power Superior 128GB V30 A2 4K UHD with Adapter Micro SDXC - Micro SD Cards
Delivery $11
Silicon Power Superior 128GB V30 A2 4K/UHD with Adapter Micro SDXC
originally posted on bhphotovideo.com
After l researched I wanted to purchase a relatively inexpensive 512 gig from a REPUTABLE vendor. They would likely have tested there product they sell. B&H is my go to store for that. The card arrived promptly and it has performed perfectly as I thought it would. No need to spend more money than you have to. But spend enough for reliability. Thank you B&H.
originally posted on bhphotovideo.com
I am using this card in my Samsung 20 . Did an accurate benchmark and the speed test was, read: 66mb/s write: 63mb/s. All this performance (and space), with an A2 app rating, considering that no high speed adapter was used, is amazing. It's a great option and it really stands up to its competitors! Extremely satisfied. Thank you B&H!!
originally posted on bhphotovideo.com
I've used Silicon Power cards for some time. The UHS-I cards are veryfast. I've never had one fail from use. The 128GB card will be used inmy camera and it handles the speed of video and multi-shot stillsflawlessly.
| Manufacturer Warranty | 5 Year |
Silicon Power Superior 128GB microSDXC A2 Memory Card
Silicon Power 128gb Microsdxc Uhs-i Micro Sd Card With Adapter, Up To
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Silicon Power Superior 128GB V30 A2 4K UHD with Adapter Micro SDXC - Micro SD Cards
Delivery $11.55
Silicon Power Superior 128GB V30 A2 4K UHD with Adapter Micro SDXC - Micro SD Cards
Delivery $11
Silicon Power Superior 128GB V30 A2 4K/UHD with Adapter Micro SDXC
After l researched I wanted to purchase a relatively inexpensive 512 gig from a REPUTABLE vendor. They would likely have tested there product they sell. B&H is my go to store for that. The card arrived promptly and it has performed perfectly as I thought it would. No need to spend more money than you have to. But spend enough for reliability. Thank you B&H.
I am using this card in my Samsung 20 . Did an accurate benchmark and the speed test was, read: 66mb/s write: 63mb/s. All this performance (and space), with an A2 app rating, considering that no high speed adapter was used, is amazing. It's a great option and it really stands up to its competitors! Extremely satisfied. Thank you B&H!!
I've used Silicon Power cards for some time. The UHS-I cards are veryfast. I've never had one fail from use. The 128GB card will be used inmy camera and it handles the speed of video and multi-shot stillsflawlessly.
I got this Silicon Power card as a replacement for an older Windows tablet that only takes microSD cards. I wasn't concerned if it was a little slower than the SanDisk it was replacing as I'd mostly just be using it for storage; not running programs off it. I was please to see that if anything, it's notably faster than the 400GB card it was replacing. For the price, I think I got a bargain!
So I decided to bite the bullet and get an A1 rated SD card for my raspberry pi. This replaced a Samsung EVO I'd been using for a while. I've got to say that the hype is, maybe not totally real, at least justified.It made the raspberry pi much snapper when doing anything IO related. How much snappier? I haven't quantified it but it makes installing software and updating files MUCH more responsive.Really works like a charm!
I bought the card for my Galaxy Z Flip and transferred all my data from my 128gb card to this larger card for space. A week later, I started having write errors before the card was unreadable by my phone. The card was unreadable in my backup phone or my laptop I put It in to backup my data. OVER 100 GIGS OF DATA LOSS. Do not buy. Stay with trusted brands like SanDisk or Lexar because the $2-5 saved is NOT worth the loss of irreplaceable photos or data.
I have several Micro SD cards for various applications including expanding the storage for an aging Microsoft Surface 2 computer. I have a Samsung Evo 512gb and this SP 512gb; the SP is the slower card. the Samsung shows 512gb, but the SP is 477gb; that's a loss of 7%. I think that is just a reporting difference as Crystal Reports shows the same size. In terms of real world; the SP can play back HD video without any issues and file transfers are decent, just not as fast as the Samsung.
Bought a couple of these and a 512 as well. This one holds wav file audio from a studio that I need while on the road. It's much more convenient to back up to this card and carry the audio with me, than to wait for it to transfer to my computer. Plus a good backup if my computer crashes again. Again? That's another story...
I've been a Samsung EVO Select devotee for a couple of years. They work well in cameras, giving really good read speeds for downloading photos. However, cameras and read speeds aren't the only use and metric for a memory card. Come to find out, the EVO Select isn't good at all for writing lots of small files in the range of 4 to 6 MB. Think of putting lots of MP3s or MP4s (music) on the card for on the go listening. With lots of files in the 4 to 6 MB range, speed is abysmal; in the 25 MB/s range. Thousands of files will take quite a while.Here's my surprise. The Silicon Power Superior U3 A2, 256GB in my case, gobbles up those same files at around 50 MB/s. Yes, double the speed. Less expensive, just as fast on large files, and double the speed on smaller files? ... MoreI've been a Samsung EVO Select devotee for a couple of years. They work well in cameras, giving really good read speeds for downloading photos. However, cameras and read speeds aren't the only use and metric for a memory card. Come to find out, the EVO Select isn't good at all for writing lots of small files in the range of 4 to 6 MB. Think of putting lots of MP3s or MP4s (music) on the card for on the go listening. With lots of files in the 4 to 6 MB range, speed is abysmal; in the 25 MB/s range. Thousands of files will take quite a while.Here's my surprise. The Silicon Power Superior U3 A2, 256GB in my case, gobbles up those same files at around 50 MB/s. Yes, double the speed. Less expensive, just as fast on large files, and double the speed on smaller files? Sign me up!For the record, I'm using the ProGrade Digital Dual-Slot UHS-II SDXC USB 3.1 Gen 2 Type-C Card Reader, purchased from B&H, of course. Awesome card reader, BTW.
Kids had run out of room in the internal memory and there is only one slot in the switch. Seemed like, for the cost, might as well put in this larger size memory card. Fit right in and worked on the first try. The kids have been starting to transfer games over but the main driver was NBA2K21, which wanted to download a 37GB update, larger than the memory built into the switch. With the memory card in play there is now plenty of room.
| Manufacturer Warranty | 5 Year |
