Nextorage CFexpress Type B Memory Card B1 Pro Series


Nextorage NX-B1PRO Series PCIe® 3.0 × 2, NVMe 1.4 CFexpress Type B memory card enables optimization for professional filmmaking and maximizes the potential of the latest cameras while it maintains the quality of the image as well as stability of its performance.


Max Read 1950 MB/s
Max Write 1900 MB/s

Nextorage NX-B1PRO Series provides read speed of up to 1,950 MB/s1 : near-max theoretical speed of CFexpress Type B, writing speed up to 1,900 MB/s1 for faster buffer clearance and RAW/8K video recording at high bitrates.

Min Sustained Write 1800 MB/s

A minimum sustained write speed of 1,800 MB/s1 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.

VPG400 is defined by Compact Flash Association. VPG stands for Video Performance Guarantee. It guarantees 400 MB/s sustained write speed when a camera records data with VPG400 manner.

Canon EOS R3, EOS R5 and EOS R5C support VPG400 video recording. Since Canon recommends to use CFexpress supporting VPG400, Nextorage strongly recommends to use NX-B1PRO series.

Dynamic Auto Power Save

"Dynamic Auto Power Save” has an automatic function to adjust the host/card to an appropriate low power consumption mode while recoding. It finds time to conserve the power during non-writing process. This function/technology enables NX-B1PRO series to eliminate up to 68% 1 of power consumption while recording in comparison to the other models without it.

Dynamic Auto Power Save prevents the cards from generating heat, which makes it possible for mirror-less cameras to record up to 1.74 times longer while writing RAW images/videos/media unlike other generic CFexpress Type B Cards.*

*Based on Nextorage test conditions. Actual performance may vary and are dependent on environmental and usage.

Recommended CFexpress Type B by usage

Still Photo Shooting

Movie Recording


Exterior durability is tested in an environment compliant with CompactFlash Association regulations:

Operating Temperature Resistance: 14 ℉ to 158 ℉

Shock Resistance

X-ray Resistance

UV Resistance

Magnetic Resistance



Nextorage is testing the operation in various recording modes with the latest high-end cameras.
See below for the latest compatibility information:

Check Compatibility

Free Data Recovery Software Download


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

Nextorage is testing the operation in various recording modes with the latest high-end cameras.
See below for the latest compatibility information:

Learn more


Model / Capacity* NX-B1PRO165G / 165 GB
NX-B1PRO330G / 330 GB
NX-B1PRO660G / 660 GB
NX-B1PRO1330G / 1,330 GB

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

Form Factor CFexpress Type B

Interface PCIe®3.0 × 2, NVMe 1.4


Max. Sequential speed (Read) 1,950 MB/s

Max. Sequential speed (Write) 1,900 MB/s

Min. Sustained speed (Write) 1,800 MB/s

VPG400 Support

Operating Voltage 3.3 V

Storage environment -40 ℉ to 185 ℉ (-40 ℃ to 85 ℃)

Operating environment 14 ℉ to 158 ℉ (-10 ℃ to 70 ℃)

Dimensions (W×L×T) Approx. 29.6 ㎜ × 38.5 ㎜ × 3.8 ㎜
(1 3/16 in. × 1 9/16 in. × 5/32 in.)

Mass Approx. 9 g (0.32 oz)

Included item Instruction manual & warranty

Warranty 5 years from the date of purchase


Operating Temperature resistance 14 ℉ to 158 ℉ (-10 ℃ to 70 ℃)

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

© 2024 Digital Distribution Powered by GOb2b

We have placed cookies on your device to help make this website better.