Lexar High-Performance MicroSDHC 300x 32GB UHS-I/U1 (Up to 45MB/s Read) w/Adapter Flash Memory Card LSDMI32GBBNL300A
- Premium memory solution for tablets, sports camcorders, and smartphones
- Quickly captures, plays back, and transfers media files, including 1080p full-HD, 3D, and 4K video
- Leverages UHS-I technology for a transfer speed up to 300x (45MB/s)
- Stores up to 8 hours of HD video; 24,800 photos; or 14,200 songs
- Includes high-speed, Class 10 card and SD adapter
- Limited lifetime warranty
Do more with your tablet, sports camcorder, or smartphone
Lexar High-Performance microSDHC/microSDXC UHS-I cards (300x) make it easy to quickly capture, play back, and transfer 1080p full-HD, 3D, and 4K video, as well as the highest-quality movies, photos, and songs. The cards leverage UHS-I technology to deliver high-speed, Class 10 performance up to 300x (45MB/s), and include an SD adapter for easy file transfer. These premium memory solutions give you the speed and space you need to enjoy more of your favorite multimedia on the go.
Product highlights
– Premium memory solution for tablets, sports camcorders, and smartphones – Quickly captures, plays back, and transfers media files, including 1080p full-HD, 3D, and 4K video – Leverages UHS-I technology for a transfer speed up to 300x (45MB/s)* – Stores up to 8 hours of HD video; 24,800 photos; or 14,200 songs** – Includes high-speed, Class 10 card and SD adapter – microSDHC 16GB (Class 10) 32GB (Class 10)- microSDXC 64GB (Class 10)
*Up to 45MB/s read transfer, write speeds lower. Speeds based on internal testing. x=150KB/s. **Based on 64GB capacity. 8-megapixel JPEG. 128-kbps MP3 audio. HD 1080p@24fps (5 Mbps). Actual number of photos, songs, and hours will vary depending on camera/device model, format resolution and compression, usable capacity, and bundled software. Some of the listed storage capacity is used for formatting and other purposes and is not available for data storage. 1GB equals 1 billion bytes. Note: Product appearance, software offerings, and packaging may vary depending on ship date and available inventory.
Do more with your multimedia.
Designed for use with your tablet, sports camcorder, or smartphone, Lexar High-Performance microSDHC/microSDXC UHS-I cards (300x) make it easy to quickly capture, play back, and transfer all your favorite media files, including videos, the highest-quality movies, photos, and songs.
Get more from your device.
Speed rated at Class 10, High-Performance microSDHC/microSDXC UHS-I cards leverage UHS-I technology to deliver a transfer speed up to 300x (45MB/s),* giving you the speed and space you need to enjoy more of your favorite multimedia on the go.
Enjoy HD video capture.
Whether you’re downloading and watching HD movies on your tablet or shooting adventure with sports camcorder, these high-speed, high-capacity cards allow you to quickly capture, play back, and transfer a large amount of the highest quality 1080p full-HD, 3D, and 4K video-making it easy to store up to 8 hours of your favorite movies or action video. **
Lexar Performance, Quality, Compatibility, and Reliability.
All Lexar memory card, card reader, and USB flash drive product designs undergo extensive testing in the Lexar Quality Labs, facilities with more than 1,100 digital devices, to ensure performance, quality, compatibility, and reliability.
Easily transfer files with included adapter.
Cards also include an SD adapter to easily transfer files between your devices.
List Price: $ 24.99
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Delivers 45MB/s as advertised – if you use the correct card reader and USB port,
For example, when I first tested the Sequential Read/Write speed of this Lexar card using my old Transcend M5 Multi-Card Reader, it shows Read=20MB/s and Write=17.6MB/s. Although this performance exceeds that of a typical ‘class-10’ card (which means at least 10MB/s in Write), it is far from the advertised 45MB/s.
When I repeated the benchmark using the Transcend Information USB 3.0 Card Reader (TS-RDF5K), I observed a more respectable reading of Read=35MB/s and Write=21.6MB/s. This shows that my old card reader was the bottleneck. However, I suspect the Read speed is still being limited by the maximum data transfer rate of my USB 2.0 port (theoretically up to 60MB/s, but practically around 36MB/s).
Finally, I conducted the same test on a computer with USB 3.0 port. This time, the Lexar card gave Read=45.5MB/s, and Write=23.5MB/s. See the screenshot I uploaded to ‘Customer Image’ section for details of the benchmark.
When compared to my other microSDHC cards, the Lexar card came in second after the SanDisk Extreme 16 GB microSDHC Card. The Sandisk Extreme card gave similar Read speed, but much faster Write speed of 32MB/s (See the comparison chart in ‘Customer Images’ section for details). Considering that the Lexar card is slightly cheaper, I’m equally satisfied with both cards.
Remarks:
– The capacity of this ’32GB’ card, as reported by my computer, is just 29.8GB. This is actually normal because computer people count one Giga as “2 to the power 30”, which is 7.3% larger than on billion. So 29.8GB is equal to 32 billion bytes, which is called ’32GB’ by marketing people.
– Lexar also offers an even faster 633x card (LSDMI32GBBNL633R). But I’m too cheap to go for it.
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|Speed Test for Lexar vs. Samsung,
UHS requires a data bus that can handle this increased speed. This is a subset of microSDHC capable devices. The newer GoPro cameras, for instance, support UHS. Non-UHS devices will still be fast, but will not make full use of the capabilities of the card. To put it another way, UHS capable cards are backwardly compatible with SDHC capable slots/devices.
I used Black Magic’s free Disk Speed application to test performance for two competing cards with similar specifications; the Lexar card and a Samsung one. Both boast similar performance numbers and specifications. The tests were on a 3 year old Macbook Pro using the built in SD card slot, so these tests are not representative of the very best that these cards are capable of – but still, of some use since many devices are not UHS compliant. After running the tests for a couple of minutes, I found that the Lexar card out performed the Samsung for write tests – 30 MB/s versus 23.6. However, the Samsung bested the Lexar at read speeds by a small amount; 42 MB/s for the Lexar, 45 MB/S for the Samsung.
As is the case with many microSDHC cards, the Lexar includes a full sized SDHC adapter that is pretty much the same as any other manufacturers.
I’ve used the Lexar in a Sony HDRCX330 camcorder with no problems at all, even at the highest resolution settings, which is what this card is designed for. For this reason I think it is the better card for use in HD camcorders that use a MicroSDHC card.
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|Speed Tested About Right,
On the computer tests, if I used the SD adapter that Lexar included and put it in the SD port, the transfer rates were capping out at roughly 10MBps. However, it looks like that was just the limit on that port and not of the card itself. I had a separate USB 3.0 adapter for microSD cards handy and I have USB 3.0 ports on my computer, so I ran the test again with that and came up with values a little above and below the 45MBps the manufacturer promises on the packaging.
This card does a good job at transfer speeds for HD cameras, which is what you’ll want for something to put into a camcorder or a phone if you intend to record video to it. (It’s usually better to get an SD card rather than microSD if you have a device that supports it).
On the other hand, the random write speed on a 4k test is a little below 1MBps, which is sort of standard as far as class 10 cards go. If what you want is something that just offers some extra space for your phone (and not specifically for HD video) you’ll probably be better off with a different card. I have a class 4 Sandisk 32GB, for example, that clocks in at almost 2MBPS on random 4K write. That doesn’t make this Lexar a bad microSD card by any means, it’s just one that’s been heavily optimized for use transferring very large files, and it sacrifices some of its ability to move small files around.
My understanding is that it’s pretty typical that random read/write of small files is superior on cards with lower class numbers. (For example, if you look at the sites that allow you to load alternative versions of Android onto a microsd card to dual-boot devices, they often suggest class 4 cards over class 10 cards, because they’re better for the kind of workload such a card needs to do.)
If you’re looking to record video and move around big files, though, my benchmark testing showed that this card behaved exactly as promised. (Do be careful that you’re ordering from a reputable dealer, such as directly from Amazon, though. This is a product where there are a lot of fakes floating around.)
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