Lexar Professional 1066x 64GB SDXC UHS-I Card Silver Series

The Verdict

If you’ve ever had a memory card choke mid-shoot — that dreaded blinking write light while your subject waits — you know why the Lexar Professional 1066x has earned its 4.7-star reputation across 235 Amazon ratings. This isn’t the cheapest 64GB SD card on the shelf, but it’s the one that won’t embarrass you when it matters.

What You Actually Get

The package is refreshingly straightforward: the card itself, a hard plastic case that actually protects it, and a download code for Lexar’s Image Rescue 5 software. No flimsy paper insert wasted on marketing fluff. The card is the classic silver-and-black Lexar Professional design — the color scheme matters more than you’d think because it’s immediately identifiable in a bag full of cards.

Real-World Performance

Here’s where the 1066x separates from budget cards. Lexar rates it at 160MB/s read and 90MB/s write, and in practice, those numbers hold up. Multiple verified buyers note they use it for 4K video on Canon and Sony bodies without frame drops. One reviewer put it this way: “I’ve shot two weddings with this card. Not a single hiccup. Transfers to my laptop are noticeably faster than my old Sandisk Ultra.”

The sustained write speed is the key spec here. Many cards hit their rated speed for a few seconds, then throttle when the buffer fills. The 1066x maintains its pace because of the UHS-I Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings. If you’re shooting 4K at 60fps or doing continuous RAW bursts, this card keeps up.

What Buyers Consistently Praise

The durability stories are what caught my attention. Multiple reviews mention the card surviving drops, laundry cycles, and even one buyer’s dog chewing it (the card still worked). Lexar’s lifetime limited warranty backs this up, and several reviewers report positive experiences with their support team when they needed replacements.

The Image Rescue software is a genuinely useful inclusion. One reviewer noted: “I accidentally deleted a full day of travel photos. The software recovered every single one.” That’s not something you get with most card purchases.

Where It Falls Short

The 64GB capacity is the obvious limitation. If you’re shooting 4K video or RAW bursts, you’ll fill this card in a couple of hours of serious shooting. You’ll likely need to carry two cards for a full day of work. That’s not a flaw in the card itself, but it’s a practical consideration.

Also, this is a UHS-I card. If your camera supports UHS-II (like the Sony A7 IV or Canon R6 II), you’re leaving speed on the table. The 1066x will work fine, but you won’t get the faster transfer times those bodies can deliver with pricier UHS-II cards. For most photographers, this isn’t a dealbreaker — the real-world difference is seconds, not minutes.

Who Should Buy This

• Hybrid shooters who bounce between 4K video and stills need a card that handles both without swapping. This is your sweet spot.
• Travel photographers who want reliability without spending UHS-II money. The durability track record matters when you’re miles from a backup.
• Anyone upgrading from a basic Class 10 card — the speed jump is immediately noticeable in camera and during transfers.

Skip it if you’re a professional who shoots eight-hour commercial days and needs massive capacity, or if your camera supports UHS-II and you need every ounce of speed.

FAQ

Is this card compatible with my camera? If your camera takes SDXC cards, yes. It’s backward compatible with SDHC slots too, though you’ll be limited to 4GB file sizes. Check your camera’s manual if it’s older than 2012.

Will this work for Nintendo Switch or Raspberry Pi? Yes, but it’s overkill. You’re paying for sustained write speeds those devices don’t use. A cheaper U1 card would do the job.

How does this compare to the SanDisk Extreme Pro? They’re nearly identical in performance. The Lexar is often a few dollars cheaper and includes the recovery software. The SanDisk has a slightly better track record for long-term reliability in some user reports, but it’s a marginal difference.

The Verdict

Buy it if you need reliable 4K video capture and fast transfers without paying UHS-II prices. This card earns its keep in demanding conditions.

Skip it if you’re a casual shooter who just needs storage for a point-and-shoot, or if your camera supports UHS-II and you want maximum speed.

The Lexar Professional 1066x delivers exactly what it promises: professional-grade reliability at a reasonable price. At 4.6/5, it’s one of the safest card purchases you can make — the only real question is whether 64GB is enough for how you shoot.

Rating: 4.6/5

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.