Nextorage 64GB 2pack SDXC UHS-II V90 SD Card - Fast 4K/8K Recording

In this review the Nextorage 64GB 2pack SDXC UHS-II V90 cards are judged primarily on speed and reliability for advanced photographers and videographers. The bottom line: these cards are for users who need consistently high sustained write performance to capture long continuous bursts or high-resolution video, and they deliver a real-world improvement over many UHS-I cards. The pack of two 64GB cards, with stated max write up to 299MB/s and max read up to 300MB/s under UHS-II, shines when shooting RAW continuous bursts and 4K/8K video where buffer clearing and sustained transfer matter.

Key Features

• UHS-II V90 speed class: V90 certification ensures a guaranteed minimum sustained write rate of 90 MB/s for reliable 4K and 8K video recording without frame drops.
• High peak throughput: With listed max write up to 299MB/s and max read up to 300MB/s, transfers to a UHS-II reader are fast, reducing wait time when offloading footage.
• Short buffer release time: Faster sustained writing reduces buffer clearing time during continuous RAW shooting, helping capture decisive moments in quick succession.
• Pack of two 64GB cards: Two cards provide flexibility for dual-slot cameras or separate backup media for extended shoots.
• Compatibility verified in Japan: Tested with a range of modern camera models, increasing confidence the cards will work with Nikon, Canon, FUJIFILM, Sony, Olympus and Panasonic bodies.
• Support and warranty: Includes a memory file rescue download service and a worry-free 5-year warranty backed by Nextorage support.

Who It's For

The Nextorage 64GB 2pack is best for mirrorless and DSLR users who shoot high-bitrate video or rapid continuous RAW stills and need sustained write speed to avoid buffer limitations. Creators with UHS-II compatible cameras will get the most value, since the cards deliver their top transfer rates only on compatible hosts and readers.

Casual photographers who rarely shoot long bursts or high-resolution video, and users who only have UHS-I devices, should consider whether the extra cost for UHS-II performance is necessary for their workflow, since UHS-II advantages are realized mainly with compatible equipment.

Pros & Cons

Pros

• Very fast peak read and write speeds that speed up offloads and reduce tethering wait times.
• V90 rating means reliable sustained write performance for 4K and 8K workflows.
• Shorter buffer release time in practice, helping with long action sequences and sports.
• Two-card pack offers convenient redundancy or dual-slot workflow support.

Cons

• UHS-II benefits require a compatible camera or reader to realize full speeds, so older gear will not see the top performance.

Specifications

Format	SDXC UHS-II V90
Capacity	64GB (two cards in pack)
Max Write Speed	299 MB/s
Max Read Speed	300 MB/s
Video Speed Class	V90 (minimum 90 MB/s)
Included	Two SD cards, card case, Memory Card File Rescue (download), 5-year warranty

Our Verdict

The Nextorage 64GB 2pack SDXC UHS-II V90 cards are recommended for serious photographers and videographers who need sustained high write performance for continuous RAW shooting and high-bitrate 4K or 8K video. The twin 64GB configuration, short buffer release time and reliable engineering make this pack good value for workflows that will use UHS-II bandwidth.

Frequently Asked Questions

Will these cards work in older UHS-I cameras?
Yes, they are backward compatible with UHS-I devices but will operate at the lower UHS-I speeds of the host device.

Are these cards suitable for 8K recording?
They are V90 certified, which meets the sustained write requirements for many 8K and high-bitrate 4K recording scenarios, but always confirm your camera's bitrate needs.

What support is included?
The product includes a memory file rescue download service, a card case, and a 5-year warranty with Nextorage customer support.