Lexar CFexpress Type B memory card 512GB

Key specifications

Its PCIe 4.0 and NVMe design is built for high-speed capture, with claimed maximum read speeds of 3,600 MB/s and maximum write speeds of 3,000 MB/s. That headroom is aimed at demanding photo and video workflows, not just moving occasional files.

Lexar also lists a sustained write speed of 2,600 MB/s, a 512GB capacity, and support for 8K RAW video capture. Maximum and sustained speeds are different measures, so the sustained figure is the more useful one to consider for long recording sessions.

The card is described as temperature-proof, vibration-resistant, dust-resistant to IP5X, drop-proof from 5 meters, shock-resistant, and bend-resistant. Lexar also claims 12,000x wear-out resistance and 7x more compression resistance than SD cards. These durability claims may matter when cards are handled frequently, but they do not replace checking your camera’s supported media format and recording requirements.

Who it’s for

This is aimed at photographers and videographers using compatible cinema cameras or DSLRs who need a CFexpress Type B card for large files or demanding capture. For example, recording 8K RAW footage on location can make fast, sustained writing more relevant than choosing a card based only on capacity. The 512GB size also gives you room for a substantial shoot, though the listing does not say how much footage it holds at any particular camera setting.

It suits you if your camera accepts CFexpress Type B and your workflow can make use of the speed. It may also suit someone moving from a more basic SD-card setup who wants a tougher card format, Lexar claims greater compression resistance than SD cards. You may want to skip it if your device uses another card type or if you mainly need everyday storage rather than fast capture. No camera-specific performance results are provided, so the listed speeds cannot predict your exact recording performance without that measurement.

Everyday use

The card is designed to handle capture in demanding professional workflows, and it is backwards-compatible with XQD devices, according to the listing. That does not mean it will work in every camera: check the device’s supported formats before buying. For file transfers, Lexar says pairing it with the Professional Workflow CFexpress 4.0 Type B Card Reader can accelerate productivity, but the reader is sold separately. If you already have a compatible reader, that extra purchase may not be needed, if not, factor it into your workflow plans.

Practical doubts

Does the card include a reader? The listing identifies the card reader as a separate purchase, so it should not be assumed to come in the package.

Can it record 8K RAW video? Lexar says its PCIe 4.0 and NVMe performance supports seamless 8K RAW capture. Actual results depend on the camera and its recording requirements, which are not specified here.

Will it work in an XQD device? It is described as backwards-compatible with XQD devices, but compatibility with a particular camera is not confirmed in the product details. Check the device’s documentation before relying on it.

Is it worth it?

The case for this Lexar card is its combination of 512GB capacity, a stated 2,600 MB/s sustained write speed, and a rugged design, aimed at users whose cameras and workloads can benefit from CFexpress Type B. It makes less sense as a general-purpose storage upgrade if you do not need that format or speed. Before choosing it over a lower-demand card, confirm that your camera accepts CFexpress Type B and that your workflow can use the performance, otherwise, the headline speeds and durability claims may not add practical value.