NX-B1PRO Series|CFexpress™ Type B Memory Card VPG400

1,330 GB / 660 GB / 330 GB / 165 GB

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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/s1
Max Write 1900 MB/s1

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/s1

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.

VPG400 Logo

Please refer to the below online manual to know the detail of supporting media in each camera.

R3 Online Manual (external link) ▸
R5 Online Manual (external link) ▸

Dynamic Auto Power Save

The NX-B1PRO Series CFexpress Type B card is equipped with Nextorage’s Dynamic Auto Power Save, a power saving system that reduces 68 %1 power consumption in video recording compared to non-equipped pSLC CFexpress cards ― contributes not only to saving the camera’s battery life, but to maintaining sustained write speed by preventing thermal throttling*.

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

Learn more ▸

Recommended CFexpress Type B by usage

Still Photo Shooting
Single Shooting Continuous Shooting with Camera Buffer High Speed Continuous Shooting Recommended Shooting Scene
・Motor Sports
Movie Recording
Full HD DCI 4K 30fps/
UHD 4K 30fps
DCI 4K 60fps/
6K RAW 60fps
4K 120fps/
8K 30fps
8K 120fps/
6K 160fps

*1: NX-B1PRO165GB/330GB can record 8K 120fps movie and 6K 160fps movie,but recording time is not enough due to low capacity.


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
  • Anti-Static


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

Check the compatibility ▸


Sometimes, things can go wrong and you might accidentally delete files or photos. Nextorage’s easy-to-use tool, Memory Card File Rescue app, recovers your precious data. Available as free download for Nextorage memory card owners.

Does not support data recovery for content protected and game data files. Not all data may be recoverable.

Learn more ▸


Warranty and product support valid for 5 years from the purchase date


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


PCIe®3.0 × 2, NVMe 1.4

NAND Flash


Max. Sequential speed (Read)1

1,950 MB/s

Max. Sequential speed (Write)1

1,900 MB/s

Min. Sustained speed (Write)1

1,800 MB/s



Operating Voltage

3.3 V

Operating environment

14 ℉ to 158 ℉ (-10 ℃ to 70 ℃)

Storage environment

-40 ℉ to 185 ℉ (-40 ℃ to 85 ℃)

Dimensions (W×L×T)

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


Approx. 9 g (0.32 oz)

Included item

・Instruction manual & warranty


5 years from the date of purchase

Durability 2

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


Certified to IEC 61000-4-2 standard

Software / Compatibility / Manual

Memory Card File Rescue
Detail & Download ▸
CFexpress Type B Memory card compatible devices
View ▸
NX-B1PRO Series Instruction Manual[PDF]
View ▸

Warranty & Product Support

Warranty period

5 Years from the date of purchase

Warranty service

If there is any inconvenience or trouble with the product, we will return or exchange the product. Please contact the retailer where you purchased the product or use our contact form. We also accept pre-purchase questions via our contact form below.

Product Support

  1. Based on Nextorage test conditions. Actual performance may vary and are dependent on environmental and usage.
  2. Durability ratings are based on Nextorage test conditions. Product damage or data corruption is not guaranteed under all circumstances; the durability of SD conversion adapters is outside the scope of this test.
  1. The results described above are based upon Nextorage‘s internal testing. The actual performance may differ depending on the environment.
  2. Durability ratings are based on Nextorage test conditions. Product damage or data corruption is not guaranteed under all circumstances; the durability of SD conversion adapters is outside the scope of this test.

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

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.1

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