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Lexar High-Performance 633X 32GB microSDHC UHS-I Card for 5.99 + tax instead of 10.87 $5.99

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Last deal here on this was also for $6, 4 months ago.

Lexar High-Performance 633x microSDHC/microSDXC UHS-I Cards
High-speed performance for your on-the-go content
Designed for your sports camcorder, tablet, or smartphone, Lexar High-Performance 633x microSDHC/microSDXC UHS-I cards let you quickly capture, playback, and transfer 1080p full-HD, 3D, and 4K video, as well as the highest-quality movies, photos, and songs. These high-capacity, Class 10 cards leverage UHS-I technology to deliver high-speed performance—up to 100MB/s (633x) (1). The cards also come with an SD adaptor for easy file transfer. These premium memory solutions give you the speed and space you need to capture more adventure on the go.

Quickly captures, stores, plays back, and transfers media files, including 1080p full-HD, 3D, and 4K video
Leverages UHS-I technology for a transfer speed up to 95MB/s (633x)
Stores more than 36 hours of HD video; 67,600 photos; or 58,100 songs
Includes high-speed, Class 10 card and SD adapter



https://smile.amazon.com/Lexar-Hi...way&sr=8-3
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40 Comments

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Joined Jan 2007
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#31
Quote from babygdav
:
https://docs.google.com/spreadsheets/d/1eGJ9hKC2Rp6l6HWICMYz5y5IvXg1ZJZ5C8GTWJa4vTU/htmlview
https://www.cameramemoryspeed.com...-sd-cards/

Lexar (using the 64gb model since they didn't test 32gb: 98/28.9 seq, 7.8/1.2 4Kq32
MC: 76.1/16.7, 7.9/1.7

So depends on priorities and use - fast seq read/write for large media files?
Fast random for smaller files in phones and such?

No matter, in both categories, there's faster cards available should that be the utmost priority.

Keep in mind that if a camera needs a U1 speed card for 4K video, for example, and you buy and use a card that performs faster - there's NO performance difference vs other U1 cards in that camera. The camera can't make use of faster performance - ie. It's already writing as fast as its hardware can and needs to.

A phone can make use of it because they usually depend on random read/write performance, and the cards available today do not make full use of the card slot bandwidth. A faster card for r/w in this case will make a difference since 4kQ32 writes on the fastest microsd cards currently can't even exceed 5MB/sec, which is far far slower than any memory slot controller.
Not sure where you got those Microcenter numbers from but they are utterly and completely wrong. I'm almost inclined to say you created that doc. I can tell you this, I have a bunch of Microcenter SD Cards (they give them out for free all the time) and they get nowhere near that level of performance and are much closer to the advertised specs (~19MB/s last time I transferred a big movie file e.g. seq read), at best they may peak at 76MB/s for a few seconds. Think about it, why would they advertise 22.5 MB/s if they can actually do something like 3.5X that. They are no nowhere near that fast, which is fine for plenty of use cases but this Lexar clearly trumps that card and does so multiple times over.
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#32
Lexar reliable? Don't know much about the brand
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#33
In for a 64gb ($10.99)
Also better then the 300x that's $9.99 right now
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#34
Price was $4.49 on July 15, 2019
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#35
Quote from ConFu
:
Not sure where you got those Microcenter numbers from but they are utterly and completely wrong. I'm almost inclined to say you created that doc. I can tell you this, I have a bunch of Microcenter SD Cards (they give them out for free all the time) and they get nowhere near that level of performance and are much closer to the advertised specs (~19MB/s last time I transferred a big movie file e.g. seq read), at best they may peak at 76MB/s for a few seconds. Think about it, why would they advertise 22.5 MB/s if they can actually do something like 3.5X that. They are no nowhere near that fast, which is fine for plenty of use cases but this Lexar clearly trumps that card and does so multiple times over.
https://oppositelock.kinja.com/9-microsdhc-cards-benchmarked-and-reviewed-1794195928
Source.

That said, cards can vary in speed benchmarks depending on when it was made, the reader in the pc, the capacity within a brand and line, file system format, etc.

The ones they give away in their rewards program are basic class 10 rated 16GB cards. Not even uhs-1/u1 or sdhc/sdxc like the bigger capacity cards.

The benchmarks don't deny the fact the Lexar is faster for sequential read/write speeds vs MC's, but they do reveal the average random 4K32 read/write speeds in the Crystal Disk benchmark program.

So yes, if you happen to be reading/writing Big files often to the microSD card (like long videos), the Lexar can help reduce the time spent to improve work efficiency (e.g. Quicker off loading of wedding videos to the PC for editing.).

But used as a random, small file storage device, Windows Readyboost device, etc, it's not going to give you "astounding" performance vs the fastest cards that can do 2-4x faster~ random read/writes.
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#36
Quote from Brich30
:
Lexar reliable? Don't know much about the brand
Look at the warranty length to start.
(E.g. The cheapest Sandisks.only give you 1-3 years = Not that reliable. The most expensive SanDisks give you lifetime = more reliable.)

Besides that, there's many factors involved.
E.g. You might touch the contacts when you're loaded with static electricity and zap! Destroy it. Can happen to any card.

Or eject it from the pc without using the Windows Eject removable device icon in the toolbar near the clock. If it's in the middle of an access, zap! Potentially.

...

Technically, to achieve the density for big GB cards, they've had to move from SLC memory cells to MLC/TLC. The latter only have a few hundred to a thousand or so read/write cycles per memory cell at most before dying.

Also, temperature greatly affects longevity as well. Use these in a desert and the read/write cycles drops.

Then there's unstoppable electron migration in all flash memory cells. Write pushes electrons in, but electrons don't like staying put. Eventually they escape and you're data goes bad and disappears. SLC can handle a decade+ in storage (also temperature dependent), with tlc/mlc shortening to under a few years in the worse conditions (high temperature, cells that already have many read/writes).

That last point, too. The more read/write cycles, the shorter the cold storage longevity.

...

Basically, backup All important data to a second card or device, migrate every 2-5 years depending on the media before it goes bad and before they become obsolete (anyone have a 12" floppy drive that works with a PC?).

With 128GB cards at <$13 (at microcenter), honestly just buy 2 and use one as the master, backup to the other.
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#37
Quote from k43kf0
:
Would it be good for Wyze????
No, you need a High Endurance, not high speed for Wyze. Unless you want to replace it in a few months.
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#38
Quote from Rl_Dreams
:
No, you need a High Endurance, not high speed for Wyze. Unless you want to replace it in a few months.
Thanks. I guess I will wait for the high endurance ones.
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#39
Thanks OP. In for One. No problem with Amazon, if something goes wrong, my experience with them is send it back for a full credit, or just " keep it ", and we'll credit your account. Not too worry here.
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#40
https://www.samsung.com/semiconductor/insights/tech-leadership/samsung-ufs-card/

Correction to a prior comment.
UFS cards are the fastest microSD cards in existence, running 5x+ times faster than the fastest microSD cards.
Limited availability and device compatibility, but a rocket in those phones that support them.
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#41
How is Lexar these days? Micron sold the brand name to a Chinese company in 2017. Has the quality declined since then?
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