Nextorage 660GB NX-B1PRO Series CFexpress Type B Memory Card


EAN Code: 810059750289 SKU: NX-B1PRO660G
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EAN Code: 810059750289 SKU: NX-B1PRO660G
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Overview of the Nextorage 660GB NX-B1PRO Series CFexpress Type B Memory Card

The Nextorage 660GB NX-B1PRO Series CFexpress Type B Memory Card is designed for capturing raw and 8K video smoothly, and taking raw and continuous photos quickly. It uses the PCIe 3.0 x2 bus to achieve maximum read speeds of 1950 MB/s and maximum write speeds of 1900 MB/s, with sustained write speeds of 1800 MB/s. Moreover, with the VPG-400 standard, it ensures that write speeds never fall below 400 MB/s.

The Nextorage 660GB NX-B1PRO Series CFexpress Type B Memory Card can withstand extreme conditions, such as temperatures from -10 to 70°C, shock, X-rays, UV rays, magnets, and static. It also features Dynamic Auto Power Save, which cuts down power usage by up to 68%, saving your camera’s battery life and keeping the card’s sustained write speed stable to avoid thermal throttling.

Features of the Nextorage 660GB NX-B1PRO Series CFexpress Type B Memory Card

  • 660GB Storage Capacity
  • Max Read Speed: 1950 MB/s
  • Max Write Speed: 1900 MB/s
  • Sustained Write Speed: 1800 MB/s
  • Min Write Speed: 400 MB/s (VPG-400)
  • Records 8K Video and Raw Images
  • Shock/X-Ray/UV/Magnet Resistant
  • Anti-Static and Temperature Resistant
  • Downloadable Photo Recovery Software
Next Level Videography

The NX-B1PRO Series CFexpress Type B card uses the PCIe 3.0 x2 / NVMe 1.4 bus, which enables optimization for professional filmmaking. It also maximizes the potential of the latest cameras while maintaining the quality of the image and the stability of its performance.

Extreme Recording – Reads up to 1950 MB/s and Writes up to 1900 MB/s

This card provides a read speed up to 1950 MB/s, which is the near-max theoretical speed of CFexpress Type B, plus a write speed up to 1900 MB/s for faster buffer clearance and raw/8K video recording at high bit rates.

1800 MB/s Minimum Sustained Write Speed

A minimum sustained write speed of 1800 MB/s supports the VPG-400 standard, which guarantees minimum sustained write speed of 400 MB/s. This is ideal for the 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.

Dynamic Auto Power Save

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

Recommended CFexpress Type B Card Usage

This 660GB NX-B1PRO card may be used for capturing singles images, continuous images with a camera buffer, and high-speed continuous images. It may also be used for Full HD, DCI 4K 30 fps, UHD 4K 30 fps, DCI 4K 60 fps, 6K Raw 60 fps, 4K 120 fps, 8K 30 fps, 8K 120 fps, and 6K 160 fps video.

Note: While this card may be used to record 8K 120 fps and 6K 160 fps video, this is not recommended because the high bit rates will not allow for long recording times.

Durability Tested

Exterior durability is tested in an environment compliant with CompactFlash Association regulations. This card is resistant to temperatures ranging from 14 to 158°, shock, X-rays, UV, magnets, and static.

Memory Card File Rescue

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

Note: Data recovery for content protected and game data files is not supported. Also, not all data may be recoverable.


Card TypeCFexpress Type B
Storage Capacity660GB 
Bus TypePCI-Express 3.0
Read SpeedMaximum: 1950 MB/s
Write SpeedMaximum: 1900 MB/s
Sustained: 1800 MB/s
Minimum: 400 MB/s
Operating Temperature14 to 158°F / -10 to 70°C
Storage Temperature-40 to 185°F / -40 to 85°C
CertificationsCE, UKCA, FCC Class B, CAN ICES-3(B) / NMB-3(B)

For more Nextorage Products see here.

Delivering/Collecting Your Order

We aim to deliver your product within 3-5 working days. Should there be any delay or an issue with stock availability we will contact you asap.

If you have specific delivery/order instruction you can write these in the order notes at checkout.

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Sometimes you’ll want something even quicker than we can deliver. That’s why we offer you the option to order online and collect in-store. Before coming in to collect please call or email us to ensure stock is available.

For more information regarding delivery please see our delivery page.

Returning your product if it’s unwanted:

Please return your item unused and in original condition (as it was received by you) with proof of purchase within 14 days, and we’ll give you an exchange or refund.

We do ask when returning to use a reputable courier with a tracking service and the item to be fully insured. Please be aware that we’ll only process your refund once the item has been returned to and checked by our specialist; this can take up to 14 days.

Returning your product because it has a fault:

If your product develops a fault within 30 days of purchase, please return with proof of purchase and we’ll exchange or refund it.

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