Lexar 256GB CFexpress Type A Silver 4.0 Memory Card Review
A pro-grade CFexpress Type A card for Sony Alpha and FX cameras that handles 8K video and burst stills.
| Brand | Lexar |
|---|---|
| Category | Memory & Storage |
| Capacity | 256GB |
| Color | Silver |
| Max Read Speed | 1750MB/s with Lexar USB 4.0 reader |
| Max Write Speed | 1650MB/s |
| Best for | Sony Alpha and FX shooters recording 8K or long bursts |
Product Overview
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The Lexar 256GB CFexpress Type A Silver 4.0 card is a pro memory card built for Sony Alpha and FX cameras that use CFexpress Type A slots. It pairs peak reads up to 1750MB/s with max writes up to 1650MB/s and a VPG200 rating for 8K video and fast burst stills.
This review checks real-world performance, durability, and whether sustained write speed holds up for video, plus how it compares to SD cards and other CFexpress options.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
Up to 1750MB/s read and 1650MB/s write with VPG200 for 8K recording.
Sustained writes up to 1300MB/s help avoid dropped frames in long 8K takes.
Fits CFexpress Type A slots on Sony Alpha and FX camera bodies.
IP68 dust and water resistance plus drop protection up to 5 meters.
Limited lifetime warranty and access to Lexar Recovery Tool for file rescue.
Design and Build Quality
The card has a silver finish and a compact Type A form factor. Lexar rates it IP68 dust and water resistant and drop proof up to 5 meters, so it should survive tough field use.
It includes a limited lifetime warranty and access to the Lexar Recovery Tool. The listing does not confirm card dimensions or a physical case in the box.
Performance in Everyday Use
With max write speeds of 1650MB/s and sustained writes up to 1300MB/s, the VPG200 rating means it can handle 8K recording on Sony bodies. Peak read reaches 1750MB/s only with the separate Lexar CFexpress Type A USB 4.0 reader.
One limitation is that the fastest read speed requires that extra reader, and the card only fits CFexpress Type A slots. If your camera takes SD or Type B, this card will not work.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Peak read speed | 1750MB/s | Listing states 1750MB/s with Lexar Professional CFexpress Type A USB 4.0 Reader | 9.0 | Top speed but requires separate reader. |
| Peak write speed | 1650MB/s | Feature bullet lists max write speed of 1650MB/s | 9.5 | Very fast for 8K and bursts. |
| Sustained write speed | Up to 1300MB/s | Listing states sustained write speeds of up to 1300MB/s | 9.0 | High sustained write helps avoid dropped frames. |
| Durability | IP68, drop proof to 5 meters | Built for durability bullet | 9.5 | Rugged for field work. |
| Compatibility | CFexpress Type A only | Title says compatible with Sony Alpha/FX cameras | 7.0 | Limited to Sony Type A bodies. |
Who Should Buy It
- Sony Alpha and FX camera owners
- Filmmakers shooting 8K video
- Photographers doing long burst RAW sessions
- Field shooters needing weatherproof storage
- Pros who want a card with a lifetime warranty
- Anyone without a CFexpress Type A camera slot or who already owns fast SD cards
- Peak read speed requires a separate Lexar USB 4.0 reader
- Only 256GB in this size, compared to 2TB max capacity
- CFexpress Type A slot limits it to Sony Alpha and FX bodies
Full Specifications
How It Compares
| Feature | Lexar | Typical option | Higher-tier option |
|---|---|---|---|
| Form factor | CFexpress Type A | CFexpress Type B | SD UHS-II |
| Max read speed | 1750MB/s | 1700 to 2000MB/s typical | 300MB/s typical |
| Max write speed | 1650MB/s | 1500 to 1700MB/s typical | 260MB/s typical |
| Sustained write | Up to 1300MB/s | Often 800 to 1200MB/s | 60 to 90MB/s sustained |
| Durability | IP68, drop proof to 5 meters | Often IP65 or no rating | Some waterproof but less rugged |
| Compatibility | Sony Alpha and FX bodies | Nikon, Canon, Panasonic high end | Most cameras with SD slot |
Alternatives Worth a Look
This is a solid pick for Sony Alpha and FX owners who need a compact CFexpress Type A card for 8K video and fast burst stills. If you shoot other brands, look for Type B options we review separately.
Frequently Asked Questions
Will this card work in a standard SD slot?
No, it is CFexpress Type A and requires a compatible Sony Alpha or FX camera with that slot.
Do I need a special card reader to get 1750MB/s?
Yes, the full read speed requires the Lexar Professional CFexpress Type A USB 4.0 Reader, sold separately.
Can it record 8K video?
Yes, the VPG200 rating and up to 1300MB/s sustained write speed support 8K recording.
Is this card waterproof?
It is IP68 rated for dust and water resistance and drop proof up to 5 meters.
What warranty is included?
Lexar includes a limited lifetime warranty and access to the Lexar Recovery Tool.
What sizes are available?
This listing is for 256GB, but the series offers capacities up to 2TB.
This review is based on the manufacturer's stated specifications, the current Amazon product listing and its images, the confirmed materials and design, and our own research into CFexpress Type A memory cards as a product category. Our scores are editorial judgments made against consistent criteria, not laboratory measurements, and we did not carry out destructive or long-term stress testing.
Where the listing did not clearly confirm a detail, such as exact dimensions, weight or certifications, we have deliberately left it out rather than guess. If you are buying, always confirm the current specification and price on the live Amazon listing, since configurations and availability change.