microSDXC UHS-3 4K Video High Speed Transfer Card - 128GB

In this review the focus is on a single high-capacity microSD card aimed at users who need uninterrupted 4K or full HD recording. The microSDXC UHS-3 128GB card delivers on the core promise: reliable video capture with fast transfer speeds that make managing large files less of a hassle. For anyone pairing a dash cam, surveillance camera, body cam, drone, or mobile device with high-bitrate recording, this card provides the performance and durability expected from a purpose-built memory card.

Key Features

• 4K and Full HD video support: UHS Speed Class U3 and Speed Class 10 enable consistent recording and playback for 4K and 1080p footage on compatible devices.
• High transfer speeds: Read speed up to 1000MB/s and write speed up to 90MB/s reduce wait time when moving large video files to a computer or backup drive.
• 128GB capacity: Ample storage for long recording sessions, which is helpful for dash cams, surveillance systems, and continuous capture scenarios.
• Wide compatibility: Works with all Rexing cameras and most devices that accept microSDXC cards, making it suitable for phones, tablets, drones, and gaming consoles.
• Durable construction: Rated to withstand extreme temperatures, is waterproof, magnetic proof, X-ray proof, and shock resistant to drops up to 5m for confidence in harsh conditions.

Who It's For

The card is best for owners of dash cams, security cameras, body cams, and action cameras who require continuous recording and dependable write speeds to avoid dropped frames. Professionals or hobbyists shooting 4K or high-bitrate 1080p video will benefit from the U3/V30 ratings and the 128GB capacity.

Casual phone users who only take occasional photos may find the performance more than they need and could choose a lower-speed, lower-cost card instead. Also, the top read speed is most useful when paired with a host device and reader that support those transfer rates.

Pros & Cons

Pros

• Reliable 4K-capable write performance thanks to UHS Speed Class U3 and V30 ratings.
• Fast read and write speeds that shorten transfer times and keep up with burst or high-bitrate recording.
• Robust durability for use outdoors or in transit, including waterproof and shockproof protection.

Cons

• Top read speeds require compatible host hardware to realize the full benefit, which not all devices provide.

Specifications

Capacity	128GB
Speed Class	UHS Speed Class U3, Speed Class 10, Video Speed V30
Read Speed	Up to 1000MB/s
Write Speed	Up to 90MB/s
Compatibility	microSDXC devices, compatible with Rexing cameras and most devices that support microSDXC
Durability	Waterproof, temperature-proof (-32F to 158F), magnetic proof, X-ray proof, shock resistant to 5m
Includes	microSDXC card with SD adapter

Our Verdict

The microSDXC UHS-3 128GB card is a practical choice for anyone who needs dependable 4K or continuous HD recording in demanding environments. It pairs high write performance and a large capacity with rugged protection, offering strong value for dash cam and surveillance applications as well as for creators who regularly record large video files.

Frequently Asked Questions

Will this card record 4K video in dash cams and action cameras?
Yes, the card supports 4K recording when used in devices that require U3/V30 write speeds, enabling uninterrupted capture at high bitrates.

Is the card likely to survive outdoor use?
Yes, it is built to be waterproof, temperature resistant, magnetic proof, X-ray proof, and shock resistant to drops up to 5m.

Do I need a special adapter to use it in a laptop?
An SD adapter is included so it can be used in devices with a full-size SD slot or with an appropriate card reader.