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$291.95 + Free Shipping
In Stock. Sold by TheImagingWorld
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2 Year Data Recovery Plan

from FA Service Plans

4.3 out of 5 stars (8)
  • If your device stops working, the Rescue data recovery plan will recover the data from the failed device and return it to you on a new piece of external storage media.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in-lab data recovery; 24/7 online case status tracking
  • If your data isn't recovered, you get your money back.
  • If you purchase this service plan and eligible product for this service plan, you acknowledge that Amazon may send the service plan seller relevant product and price information for the purpose of administering the plan
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Lexar 512GB Professional 633x Class 10 UHS-I U3 SDXC Memory Card for Cameras, 95MB/s Read Speed, 45MB/s Write Speed

by Lexar
4.7 out of 5 stars 483 customer reviews
List Price: $377.99
Price: $291.95 & FREE Shipping
You Save: $86.04 (23%)
Only 1 left in stock.
Estimated Delivery Date: April 12 - 15 when you choose Expedited Shipping at checkout.
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  • Lexar 512GB Professional 633x Class 10 UHS-I U3 SDXC Memory Card - Lexar Lifetime Limited Warranty
  • Compatibility: Cameras
  • Card Type: SDXC
  • Storage Capacity: 512GB
  • Speed Class: 10
2 new from $224.95
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Product Information

Technical Details

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Other Technical Details
Brand Name Lexar
Item model number Pro 633X SD Card
Item Weight 1.6 ounces
Product Dimensions 5.5 x 4 x 0.1 inches
Color white

Additional Information

ASIN B016O8HNWY
Customer Reviews
4.7 out of 5 stars 483 customer reviews

4.7 out of 5 stars
Best Sellers Rank #1,528 in Computers & Accessories > Computer Accessories > Memory Cards > SD & SDHC Cards
Shipping Weight 0.5 ounces (View shipping rates and policies)
Date First Available July 27, 2015

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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Customer Reviews

Top Customer Reviews

4.0 out of 5 starsDecent card but note the write speeds!
By Sporty on April 28, 2015
Size: 64GB
The Lexar Professional 633x cards are an update to the 600x SD cards. The previous cards were advertised at 90MB/s read and 45MB/s write. The new cards are now advertised as 95MB/s read and 45MB/s write according to Lexar. The new cards now have UHS Speed Class 3 (U3) rating. U3 is not a specific type of card, but a speed rating to assure the card can sustain at least 30MB/s write speed so it is suitable for 4K video recording. The old cards were introduced in 2012, a year before the U3 speed rating was created.

I tested both 32GB and 64GB versions of the new 633x cards. Using CrystalDiskMark v3.0.3 benchmark I found essentially the same read and write speeds as the old 600x cards. I ran tests using several different USB 3.0 readers, below are the highest read/write speeds:

Lexar Professional 633x 32GB 96.1 read / 48.9 write
Lexar Professional 600x 32GB 96.5 read / 48.7 write

Lexar Professional 633x 64GB 96.0 read / 69.3 write
Lexar Professional 600x 64GB 96.6 read / 68.6 write

Note that the 64GB capacity cards reached higher write speed than the 32GB. The write speed is less than faster UHS-I cards such as the SanDisk Extreme Pro that can reach over 90MB/s write.

I tested the cards in the Canon T6i and found 600x and 633x 64GB cards performed the same. The 32GB cards were slower, and the older 600x card was even slower than the new 633x 32GB card. I found some SD cards were slower than usual in this camera. I will update this review when I have tested in other camera models.

This is a decent card for the price. If you are looking for speed the 64GB has a higher write speed than the 32GB. If you have a newer UHS-I DSLR (Nikon D5500, D7100, D7200, D750, Canon 7D II) you might want to consider a different card with a higher write speed.
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5.0 out of 5 starsGood reliable fast memory for DSLR
By 3D on May 27, 2015
Size: 32GB
I got a 32GB for $19.95 price matched at local store.

Tested 93 mb/s read and 44 mb/s write on my iMac 5k.

Worked great on my Sony A7 and A7S in RAW burst and video.

The most reliable memory cards I've ever used are Lexar Professional series and Sandisk Extreme Pro. It's worth the extra cost. The other brands like Transcend and PNY are good too but they are not as reliable over time. Just from my experience and limited sample sets.
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5.0 out of 5 starsWorks Great on my Canon EOS 5D Mark III
By Patrick M. Lyon on May 4, 2015
Size: 64GB Verified Purchase
First off, this works great in my Canon EOS 5D Mark III. With that being said, the 5D3 caps the SD card speed at 133X. So why get this? Well for one, when I am shooting still, I have raw images write to both the SD and CF cards, that way I always have a backup. Secondly, when you are importing the pics to a computer, its nice to have the extra speed provided by this card. When I am shooting video, I set the camera to write only to the CF card.

My Setup:
-Canon EOS 5D Mark III
-Canon EF 16-35mm F/2.8L II USM (w/ Canon 82mm Filter)
-Canon EF 70-200mm F/2.8L IS II USM (w/ Canon 77mm Filter)
-Lexar Professional 800x 64GB CF Card
-Lexar Professional 633X 64GB SDXC Card
-Lexar Professional USB 3.0 Dual-Slot Reader
-Glidecam HD-2000
1 Comment 10 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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1.0 out of 5 starsNot Compatible with Sony RX100 IV 100mbps High Bitrate Video
By BlueBomberTurbo on July 14, 2015
Size: 64GB Verified Purchase
Does not meet the minimum requirements for the RX100 IV. The camera crashes at 30 seconds in any 100mbps recording mode. This should not be a problem, since 100mbps is only about 13MBps. The card may not be able to sustain consistent write speeds for long periods of time. All other photo and video modes are fine, but 4K/1080p120 at 100mbps is a big draw for this camera.
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4.0 out of 5 starsSeller highly recommended! but product, so, so...
By Julian Aude on June 16, 2015
Size: 64GB Verified Purchase
Excellent purchase experience and super fast delivery... Recommended seller! About the product, the SD card perform regularly: 40MB/s writing and 85MB/s reading using BlackMagicDesign Disk Speed Test for Mac... Value for the money is ok, but if you are looking for more speed you should pay a little more and choose another options...
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5.0 out of 5 starsGreat quality and at 128 GB storage can run both ...
By Ray F. Longaker Jr. on August 2, 2015
Size: 128GB Verified Purchase
Great quality and at 128 GB storage can run both HD video and still photographs. Recommended. Seller shipped immediately and product arrived as scheduled.
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5.0 out of 5 starsFully Met My Expectations, Perfect Operation In My HD Camcorder, Fast Video Copy To My Laptop
By Stephanie Sullivan TOP 50 REVIEWERVINE VOICE on March 24, 2016
Size: 32GB Verified Purchase
I got this card to use in a HD video camcorder. It's just HD and not 4K. In this use I just plugged it into my device and it worked perfectly. After shooting I plugged it into my laptop SD reader slot and copied the video to my laptop for processing and erased the files on the card.

This is pretty simple use. I did not run benchmarks, but copying large video files was certainly quick. The write speed appears to work perfectly fine on my HD camcorder.

It does exactly what I want and I got it at a good price on Amazon - lower than I could find it locally. Good value and working perfectly in my application is the definition of a 5 star performer.
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5.0 out of 5 starsExcellent so far
By AngryGames on August 10, 2015
Size: 32GB Verified Purchase
This is my first new-generation SD card (I think my last one was a 1GB model from 6-7 years ago when they were brand new at that size?). It came with my Nikon D3300 DSLR. It's nice and fast, though I doubt I've really tested its limits since I am a nooblet with an SLR and haven't even really gotten into the 1080p videos it can shoot (I dig hockey and will be annoying the guys at the rink quite a bit just learning how to take rapid-fire high-speed shots).

Seems like a great product. I bought a USB 3.0 plug-in reader so I wouldn't have to wait for my camera's USB 2.0 interface dump 20GB of photos and such to my desktop (SSD drives). Everyone bless USB 3.0 speeds!
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