HIDISC

HIDISC 128GB microSDXC UHS-I Class 10 Memory Card

A mainstream 128GB microSDXC card that pairs U3 video-ready write speeds with an A1 rating for smoother app performance

$47.29*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Aug 11, 2026.Price and availability are subject to change.

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Overview

The HIDISC 128GB microSDXC card is aimed squarely at the mainstream buyer who wants generous storage without stepping up to premium pricing. Its 128GB capacity strikes a practical middle ground: large enough to consolidate a phone's photo library, a dashcam's rolling footage, or a handheld console's game collection, yet common enough to remain affordable. The microSDXC format ensures it drops into the vast majority of modern devices, and the Class 10 plus UHS-I ratings signal the broad, everyday compatibility most users expect from a general-purpose card.

Where the specification sheet gets more interesting is in its two performance marks. The UHS Speed Class 3 designation, or U3, describes a card engineered for sustained writes fast enough to keep up with high-bitrate and 4K-capable video, so recordings should proceed without stutters or dropped frames. The A1 application performance class addresses a different need entirely — random read and write speed — which matters when apps are installed on the card and expected to launch and run smoothly. Buyers should note that HIDISC does not publish specific maximum read or write figures here, and that the UHS-I bus and A1 class both sit a tier below the fastest UHS-II and A2 options. For mixed photo, video, and app duty at a reasonable price, though, the combination is a sensible fit.

Specifications

Brand
HIDISC
Manufacturer
HIDISC
Storage Capacity
128GB
Card Format
microSDXC
Speed Class
Class 10
Bus Interface
UHS-I
UHS Speed Class
U3 (Speed Class 3)
Application Performance Class
A1

Frequently Asked Questions

It offers 128GB of storage in the microSDXC format, enough to hold thousands of photos or many hours of Full HD video on a single card.
Its UHS Speed Class 3 (U3) rating is designed for the sustained write speeds high-bitrate and 4K-capable recording needs, helping avoid dropped frames.
A1 is an application performance class focused on random read speed, which helps apps installed directly on the card launch and respond more smoothly.
Its Class 10 and UHS-I ratings and microSDXC form factor make it broadly compatible with modern phones, tablets, cameras, and handheld devices.
The listing does not mention a bundled SD adapter, so if your device uses a full-size SD slot you may need to obtain one separately.
It uses the UHS-I bus and an A1 class, both a tier below UHS-II and A2 cards, so peak speeds are lower but pricing stays more mainstream.