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Exascend

Exascend Catalyst 512GB microSDXC UHS-I V30 Memory Card

Store roughly half a terabyte on a single card with read speeds up to 175 MB/s and a V30 rating built for high-resolution video capture

$189.00*
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*Price sourced from Amazon.com. Last updated:Jul 22, 2026.Price and availability are subject to change.

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Overview

The Exascend Catalyst positions itself as a high-capacity workhorse for creators who would rather carry one large card than juggle several small ones. At 512GB, it targets photographers shooting in RAW, videographers capturing high-resolution footage, and enthusiasts who simply dislike the interruption of running out of space. Its headline figure is a read speed of up to 175 MB/s, drawn from the UHS-I bus, which shortens the wait when transferring a full card to a computer. Backing that up is the V30 video speed class, a standard designed to sustain a minimum write speed of 30 MB/s so that high-resolution video and fast-action photo bursts record without dropped frames.

On the practical side, the Catalyst leans on the broad reach of the microSDXC format. The UHS-I bus type is the most widely supported flavor of SD storage, so the card is at home in action cameras, drones, smartphones, and other devices that accept microSDXC media. Exascend also emphasizes resilience, rating the card to operate from -13 to 185°F. That thermal range suggests it should keep working through winter shoots and sun-baked interiors alike. The card is offered in several capacities, giving buyers room to match storage to budget, though the 512GB tier sits at the top for those who want maximum headroom in a single slot.

Key Features

INCREASED PRODUCTIVITY - Experience blazing-fast data transfers with read speeds up to 175 MB/s, significantly improving workflow efficiency for professionals and enthusiasts alike.

VERSATILE COMPATIBILITY - Seamlessly integrates with a wide range of devices supporting microSDXC, thanks to its UHS-I bus type, ensuring optimal performance across various platforms.

RELIABLE PERFORMANCE - Benefit from the V30 video speed class, guaranteeing a minimum write speed of 30 MB/s, ideal for recording high-resolution videos and capturing fast-action photos.

EXPANDED STORAGE - Choose from multiple available capacities (64GB, 128GB, 256GB) to store all your important files, photos, and videos, eliminating the need for constant memory management.

ENHANCED DURABILITY - Designed to withstand extreme conditions, this memory card operates in temperatures from -13 to 185°F, ensuring your data remains safe in harsh environments.

Specifications

Brand
Exascend
Series
Catalyst
Capacity
512GB
Card Format
microSDXC
Bus Type
UHS-I
Video Speed Class
V30
Maximum Read Speed
Up to 175 MB/s
Minimum Write Speed
30 MB/s
Operating Temperature
-13 to 185°F
Other Capacities
64GB, 128GB, 256GB

Frequently Asked Questions

It offers read speeds up to 175 MB/s over the UHS-I bus and a guaranteed minimum write speed of 30 MB/s from its V30 rating, which suits offloading large files and recording high-resolution video.
Its V30 video speed class guarantees a sustained 30 MB/s write speed, the threshold designed for smooth high-resolution recording, making it a reasonable fit for 4K capture on compatible cameras.
The card uses the widely supported UHS-I bus type, so it integrates with a broad range of devices that accept microSDXC media, including many action cameras, drones, and smartphones.
Exascend rates it to operate from -13 to 185°F, giving it a wide thermal margin intended to keep data safe during cold-weather shoots and in hot environments.
Yes. Beyond this 512GB model, the line is offered in 64GB, 128GB, and 256GB capacities, letting buyers match storage to their needs and budget.

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