Lexar Professional 600x 32GB SDHC UHS-I Flash Memory Card LSD32GCRBNA6002 - 2 Pack

Fantastic read/write speed as compared to USB 3.0. I'll provide some benchmarks below, as measured while copying a larger size video file.I purchased two of these cards for use as spare storage on my new iMac 27" computer. This computer is fully optioned and has the 1TB internal flash drive, which is what I used for copying to and from the cards mentioned below. Normally I have used SanDisk cards in the past, so this was my first use of the Lexar cards. When they arrived, I found the packing to be very nice. The cards themselves are well made and seem durable.After taking one out of its packaging, I slid it into the card slot on the back of my iMac; the card mounted right away with no problems. I then formatted it using the disk utility with one single ExFAT partition.To check the speed, I used a file which was 2.93 GB (aka 2,930 Megabytes). I copied this same file from the flash drive of the Mac to both the Lexar card and also a Leef 64GB USB 3.0 flash drive. Below are the read and write speeds of each. Read speed being defined as dragging the file from the card or flash drive to the internal 1TB flash drive of the iMac. Write speed being defined as dragging (i.e. copying) the 2.93 GB file from the internal flash drive of the iMac to the card or flash drive itself.HERE ARE THE RESULTS using the 2930 Megabyte file (i.e. 2.93 GB file):Write speed to Lexar card: 48 seconds / 61.04 MB/sRead speed from Lexar card: 31 seconds / 94.51 MB/sfor comparison to USB 3.0:Write speed to Leef USB 3.0 flash drive: 130 seconds / 22.54 MB/sRead speed from Leef USB 3.0 flash drive: 100 seconds / 29.30 MB/sNot bad huh? So, as can be seen above, the Lexar SDXC flash card writes data almost 3 times faster than a high performance USB 3.0 flash drive. It also reads data off the card at the widely quoted "600x" speed of 90 to 95 megabytes per second, which is over 3 times the read speed of the USB 3.0 flash drive.NOTE: speeds were simply taken using my wrist watch second hand; time was started when file was "dropped" into the target directory. Accuracy should be +/- 1 second I would guess.

Great price, fast shipping. Card writing speed is not that optimal as it says. Good for jpg but slow for RAW files. Overall good

For me, the virtue of Lexar Pro SDHC I class 10 600x speed is the fast write speed and low down time waiting for my camera to buffer images before being able to take my next photo. On location, I have been frustrated by slower speed memory cards and I missed some great images because of waiting a few seconds between shots. If you are in the field waiting hours for the right light or the right animal or the perfect wave you don't want to miss that precise instant waiting for your equipment to perform. My search for acceptable write speed at affordable price lead me to Lexsar Pro's 600x speed memory card. I have found a sweet spot for pricing any brand memory card with the speed I need at about $1 per GB or less. Lexar memory cards are American made. That means something to me. Check out this YouTube video of how Lexar chips are made in Utah, USA www.youtube.com/watch?v=kvf29R7nXlM

Lexar memory cards are now the brand of choice for my YouTube channel and shooting conferences and conventions. The cards are fast, let me use my buffer to its full potential and I don't miss a shot now. The warranty is also reassuring. Pros like Scott Kelby shoot on Lexar for a reason and now so do I! I am now investing more in the 1000x Cards, my current camera can't take advantage of the 2000x Cards, but this is the best value for me anyway!

Great card. I've bought several of these Lexar Professional class 10 SD cards in both 16 and 32 GB sizes, 600x and 800x speeds, for use in my Canon 6d and 7D Mark II cameras. After over a year of nearly daily use, including filling these cards to capacity over and over, I have as of yet suffered no failures. I'd recommend them to anyone looking for a fast, dependable SD card, and intend to buy more when I need replacements.

I purchased this item:Lexar Professional 600x 128GB SDXC UHS-I Flash Memory Card LSD128CRBNA6002 - 2 PackSold by: Amazon.com LLCShipped: Jun 16, 2014Quantity: 1On June 9, 2014 for $180.99This only worked for a few months and then started to crash several times. It may cause a loss of data on times. I had to purchase a data recovery software separately for $89.95 (EaseUS Data Recovery Wizard for Mac 7.5, receipt available) to try and recover data on the SD cards.For the last month, the 2 SD cards in the pack stopped working completely. They are not recognised by either the Digital Camera or the Laptop, and cannot even be formatted.Mr. Emad S B Saweeres, FRCSI, FRCSEd (Tr & Orth), MDAssistant Professor & Consultant Orthopaedic Surgeon

Just read where a customer recommended the Sandisk Pro over the Lexar Pro stating that the Lexar was very slow for her Mac book.Not having a Mac, it is difficult to understand her problem, I have both memory cards, they both read & write at virtually the same speed, 95 MBps read. There is no real difference except in the computers they are run on. Buy which ever is your preference and enjoy the what ever it is you use them for.

I am an avid amateur photographer. I want the best equipment and want my photos sharp. I shoot many action shots of kids and a fast card is important.I have used SanDisk and Lexar memory cards only. This card is very, very fast on my Nikon D610. I have a few of these. They have never failed me. I am a big fan of Lexar Professional flash memory cards.

works as expected and at a reasonable price

Perfect good value.