Nextorage Starts Selling World’s Fastest[1] CFexpress™ 2.0 Type B Memory Cards [NX-B1PRO Series] in GERMANY

  • Max read 1,950 MB/s[2], max write 1,900 MB/s[2], VPG400, 165 GB to 1,330 GB capacity option plus low-power consumption system: for stable and reliable video recording
  • Durability for harsh environment & 5-year limited warranty

Kanagawa, Japan, November 1st, 2023 ― Nextorage Corporation starts selling its CFexpress Type B cards: B1PRO Series, supporting PCIe®3.0 NVMe 1.4 interface.
As today’s camera performance evolves and recording quality continues to improve, Nextorage expands its product portfolio with these B1PRO series to offer a wide range of capacity and performance options for professional imaging, meeting the demand for recording video and still images at the highest image quality.
Nextorage was established on October 1, 2019, as a company specializing in the memory storage solutions business led by engineers and staff who built on 20 years of history in memory storage at Sony.


B1PRO Series (NX-B1PRO)

Achieves the world’s fastest[1] read speed of up to 1,950 MB/s[2], write speed of up to 1,900 MB/s[2] and a minimum sustained write speed of 1,800 MB/s[2] supporting VPG400 (guaranteed minimum sustained write speed of 400 MB/s) for all capacities ranging from 165 GB to 1,330 GB: ideal for high-speed continuous shooting of RAW images as well as 8K video recording at higher bit rates without dropping frames with the latest high-performance mirrorless cameras.

The B1PRO Series CFexpress Type B card is equipped with “Dynamic Auto Power Save”, a unique system developed by Nextorage for low-power consumption during video recording. The B1PRO series offers up to 68 %[2] power savings compared to non-equipped pSLC CFexpress cards. This system not only saves the camera’s battery life, but also prevents thermal throttling* from triggering by reducing the temperature rise of the card. This interaction contributes to maintaining sustained write speed during high-speed writing in video recording.

* Thermal throttling: a control function that suppresses the transfer speed to prevent thermal runaway


B1PRO series are durability tested in an environment compliant with CompactFlash Association regulations:

  • Temperature resistance: -10 ℃ to 70 ℃ / 14 ℉ to 158 ℉ (Operating temperature)
  • Shock resistance (EIA-364-27A compliant)
  • X-ray resistance (ISO7816-1 compliant)
  • UV resistance (ISO7816-1 compliant)
  • Magnetic resistance (based on Nextorage internal testing)
  • Anti-Static (certified to IEC 61000-4-2 standard)


Nextorage is testing the operation in various recording modes with the latest high-end cameras.
Information on all compatible devices is on the Nextorage website:

CFexpress Type B Memory Cards Compatibility ▸

Data recovery software “Memory Card File Rescue” (download bonus)

This software recovers data that has been deleted by mistake or that cannot be read, as far as possible.

* Does not support data recovery for content protected and game data files. Not all data may be recoverable. PC environment is required for downloading.


Nextorage B1PRO Series CFexpress Type B memory cards will be available on Amazon Germany from November 1st, 2023. See below for suggested retail pricing:

  • NX-B1PRO: €189,99 (165 GB) / €399,99 (330 GB) / €759,99 (660 GB) / €1200,00 (1,330 GB)
NX-B1PRO (Amazon DE) ▸


Models NX-B1PRO
Capacity[3] 1,330 GB 660 GB 330 GB 165 GB
Interface PCIe Gen 3.0 × 2, NVMe 1.4
NAND Flash Memory pSLC
Max. Read speed[2] 1,950 MB/s
Max. Write speed[2] 1,900 MB/s
Min. sustained Write speed[2] 1,800 MB/s
VPG400 Support
Warranty 5 years
Learn more about NX-B1PRO :
NX-B1PRO Series ▸

[1] In the category of CFexpress 2.0. As of October 2023, Nextorage Survey

[2] Based on Nextorage test conditions. Actual performance may vary and are dependent on environmental and usage.

[3] 1 GB = 1 billion bytes. The actual usable capacity (user area) is smaller than the indicated capacity due to its use for system area.

Design, specifications, and prices are subject to change without notice
CFexpress is a trademark of the CompactFlash Association
NVMe is a trademark of NVM Express, Inc
PCle is a trademark of PCI-SIG
Other system names and product names are generally registered. trademarks or trademarks of each manufacturer.

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