Head-to-head · Best Cfexpress Type B Cards

Lexar Professional CFexpress Type B Card SILVER Series vs OWC Atlas Ultra (CFe 4.0)

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

OWC Atlas Ultra (CFe 4.0) comes out ahead by a clear margin (4.9 vs 4.5). OWC Atlas Ultra (CFe 4.0) is best for: video-first hybrid creators. Read the strengths below before deciding.

Ranked #2 in Best Cfexpress Type B Cards

Lexar Professional CFexpress Type B Card SILVER Series

4.5

3 sources$234.99as of Oct 29

The Lexar Professional CFexpress Type B Card SILVER Series is a CFexpress 2.0 card rated at up to 1750MB/s read and 1300MB/s write. Digital Camera World gave it 5 out of 5 stars after its 128GB sample matched a SanDisk Extreme PRO on read speed and beat it on write speed, Amateur Photographer rated the 128GB card 4.5 out of 5 and called the series possibly the best value in CFexpress Type B, and Camera Jabber gave the 1TB version 5 out of 5. The trade-off is sustained write speed: the 128GB and 256GB sizes are rated at 480MB/s, well below Lexar's own Gold cards, and Digital Camera World notes that no recovery software is included.

Strengths

— Read speed matched a SanDisk Extreme PRO in Digital Camera World's 25GB file-copy test, with faster write speed
— Ran reliably in the Fujifilm GFX100 II and Leica SL3 for Amateur Photographer
— Backwards-compatible with select XQD cameras

Watch-outs

— 128GB and 256GB sizes are rated at only 480MB/s sustained write
— No recovery software included, unlike SanDisk's Extreme PRO cards (Digital Camera World)
— Not the fastest CFexpress card available (Amateur Photographer)

$234.99 · Check Price on Amazon Full review →

Higher ratedRanked #1 in Best Cfexpress Type B Cards

OWC Atlas Ultra (CFe 4.0)

4.9

1 source

TechRadar called the OWC Atlas Ultra CFexpress Type-B 1TB a fast and durable memory card that unlocks the full potential of high-resolution cameras. The card delivers impressive read speeds up to 3650MB/s and write speeds up to 3000MB/s, with firmware upgradeability via OWC Innergize software. While it's significantly faster than traditional SD cards, its premium pricing and requirement for a specific OWC reader for full software support make it a niche choice for professional creatives who demand top-tier performance. Newsshooter noted its exceptional speed, though the cost remains a barrier for casual users.

Strengths

— Enhanced speed performance with read speeds up to 3650MB/s and write speeds up to 3000MB/s
— Firmware upgradeability supported by OWC Innergize software
— Durable build quality resistant to UV, shock, drop, and extreme temperatures

Watch-outs

— Requires OWC Reader for full Innergize software functionality
— The product is relatively expensive.

Buy at bhphotovideo.com Full review →

How they stack up

Lexar Professional CFexpress Type B Card SILVER Series

The Lexar SILVER is a CFexpress 2.0 card rated at 1750MB/s read and 1300MB/s write, about half the 3650MB/s read and 3000MB/s write listed for the OWC Atlas Pro and OWC Atlas Ultra CFexpress 4.0 cards and close to the SanDisk Pro-Cinema's 1700MB/s read and 1500MB/s write. Its 480MB/s sustained write rating in the 128GB and 256GB sizes is below the 800MB/s listed for the OWC Atlas Pro and the Pro-Cinema's 1400MB/s minimum. Its 10-year limited warranty is longer than the 3-year warranty listed for the OWC Atlas Pro.

OWC Atlas Ultra (CFe 4.0)

The OWC Atlas Ultra CFexpress 4.0 Type B 1TB card delivers read speeds up to 3650 MB/s and write speeds up to 3000 MB/s, about twice the 1700 MB/s read and 1500 MB/s write ratings of the SanDisk Pro-Cinema. Its premium pricing and hardware dependency make it less accessible.

Specs side-by-side

Spec	Lexar Professional CFexpress Type B Card SILVER Series	OWC Atlas Ultra (CFe 4.0)
Capacity	128GB or 256GB (linked listing: 256GB)	1TB
Read Speed	Up to 1750MB/s	Up to 3650MB/s
Write Speed	Up to 1300MB/s	Up to 3000MB/s
Sustained Write Speed	480MB/s	—
Interface	PCIe 3.0 x2 (CFexpress 2.0)	PCIe 4.0 x2
Card Type	CFexpress Type B	CFexpress Type B
Operating Temperature	-10°C to 70°C	—
Warranty	10-year limited warranty	2 years

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