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Nextorage

Japanese CFexpress 4.0 Type B 256GB Memory Card Max. Read Speed 3900MB/s Max Write Speed 2000MB/s NX-B3SE256G CF Express 4.0 typeb Nextorage (256GB)

Name: Nextorage Japanese CFexpress 4.0 Type B 256GB Memory Card Max. Read Speed 3900MB/s Max Write Speed 2000MB/s NX-B3SE256G CF Express 4.0 typeb
Brand: Nextorage
SKU: B0DM1C2K2K
Price: 189.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-07-07

$189.99

Buy on Amazon — $189.99 Compare to similar games & cartridges

*Price sourced from Amazon.com. Last updated 2026-07-07. Price and availability subject to change.

Bottom line: The Japanese CFexpress 4.0 Type B 256GB Memory Card Max. Read Speed 3900MB/s Max Write Speed 2000MB/s NX-B3SE256G CF Express 4.0 typeb Nextorage (256GB) is a niche pick — read recent reviews before buying in the games & cartridges category, priced around $189.99. Read recent reviews carefully before committing.

SpecPicks Verdict

SpecPicks classifies Nextorage Japanese CFexpress 4.0 Type B 256GB Memory Card Max. Read… as a niche pick — read recent reviews before buying in the games & cartridges category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Nextorage's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for games & cartridges of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ 256GB: Maximum transfer rate (read) 3,900MB/s, Maximum transfer rate (write) 2000MB/s
✓ Backed by Nextorage's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

About Nextorage: Nextorage is a Japanese company founded by former Sony engineering members who have developed memory cards for Sony cameras for over 20 years. The company offers products optimized for a variety of situations, from creative to entertainment, where strong reliability is required.
CFexpress 4.0 support for high-speed transfers: Standard model with class-leading transfer speeds.
256GB: Maximum transfer rate (read) 3,900MB/s, Maximum transfer rate (write) 2000MB/s
256GB: Maximum transfer rate (read) 3,900MB/s, Maximum transfer rate (write) 2000MB/s
Entry-level model for multiple uses from still image to video shooting: This CFexpress Type B memory card is ideal for shooting still images of people and landscapes, including continuous shooting using the camera buffer, and for high-quality video up to 8K 30fps.
Backward compatible with CFexpress2.0 devices: The CFexpress4.0 standard is backward compatible with CFexpress2.0, so it can be used safely with CFexpress2.0 compatible host devices.

Full Specifications

256GB	Maximum transfer rate (read) 3,900MB/s, Maximum transfer rate (write) 2000MB/s
Brand	Nextorage
Color	Blue
Weight	256g
Model Name	NX-B3SE256G
Read Speed	3900 Megabytes Per Second
Media Speed	2000 MB/s
Model Number	NX-B3SE256G
Warranty Type	Limited
Mfr Part Number	NX-B3SE256G/INE
Package includes	CFexpress Type B memory card, dedicated case, and Memory Card File Rescue (download bonus)
Flash Memory Type	CFexpress
Compatible Devices	Camera
Additional Features	Drop Proof, Electrostatic resistance, Magnetic Proof, Temperature Proof, X Ray Proof

Ready to buy?

Nextorage Japanese CFexpress 4.0 Type B 256GB Memory Card Max. Read Speed 3900MB/s Max Write Speed 2000MB/s NX-B3SE256G CF Express 4.0 typeb Nextorage (256GB) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-07-07. Price and availability subject to change.