Designed for those who want to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts 64GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life. Built with a storage capacity of up to 64GB, 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 1 (A1) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A1 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 64GB 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.
Designed for those who want to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts 64GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life. Built with a storage capacity of up to 64GB, 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 1 (A1) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A1 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 64GB 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.
Silicon Power Superior UHS-I microSDXC Memory Card with SD Adapter SP128GBSTXDV3V1NSP 64 GB
Designed for those who want to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts 64GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life. Built with a storage capacity of up to 64GB, 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 1 (A1) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A1 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 64GB 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.
Designed for those who want to capture Ultra HD 4K and Full HD video, as well as raw and JPEG stills and bursts 64GB Superior UHS-I microSDXC Memory from Silicon Power keeps up with the pace of your life. Built with a storage capacity of up to 64GB, 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 1 (A1) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A1 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 64GB 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 3 offers
The lowest price for Silicon Power Superior UHS-I microSDXC Memory Card with SD Adapter SP128GBSTXDV3V1NSP 64 GB right now is $23.00 at Amazon.com.au, compared across 2 retailers.
The all-time low was $23.00 on 18 Oct 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 3 Nov 2026.
Last updated at 03/11/2026 12:50:06
Silicon Power 64GB microSDXC UHS-I Micro SD Card with Adapter, Up to 100MB/s Read & 80MB/s Write, C10 U3 V30 A1 4K UHD Video, High Speed microSD
Free delivery
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Silicon Power 64GB Superior A1 Series microSDXC UHS-I U3 V30 Memory Card - 100MB/s
Free delivery between 6–13 Nov
| Speed Class | UHS Speed Class 3 (U3), Class 10 |
| Read Speed | Up to 100 MB/s, Minimum random read of 1,500 IOPS |
| Write Speed | Up to 80 MB/s, Minimum random write of 500 IOPS |
| Card Format | microSDXC |
| Supported Devices | Tablet |
Silicon Power 64GB microSDXC UHS-I Micro SD Card with Adapter, Up to 100MB/s Read & 80MB/s Write, C10 U3 V30 A1 4K UHD Video, High Speed microSD
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 64GB Superior A1 Series microSDXC UHS-I U3 V30 Memory Card - 100MB/s
Free delivery between 6–13 Nov
| Speed Class | UHS Speed Class 3 (U3), Class 10 |
| Read Speed | Up to 100 MB/s, Minimum random read of 1,500 IOPS |
| Write Speed | Up to 80 MB/s, Minimum random write of 500 IOPS |
| Card Format | microSDXC |
| Supported Devices | Tablet |
