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Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)

Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)

$22.48

(11 customer reviews)
Last updated on July 3, 2022 4:31 am Details
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  • Stores and transfers content faster with high-speed USB 3 1 performance
  • Stylish Metal design with exceptional durability
  • Securely protects files using an advanced security software solution with 256-bit AES encryption
  • Usb 3 1 (Gen 1) enabled backwards compatible with USB 3 0 and 2 0 devices
  • Backed by five-year limited product support

Specification: Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)

Brand

‎Lexar

Series

‎Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)

Item model number

‎LJDM45-128ABSLNA

Item Weight

‎0.352 ounces

Product Dimensions

‎6 x 4 x 0.1 inches

Item Dimensions LxWxH

‎6 x 4 x 0.1 inches

Color

‎Silver

Manufacturer

‎Lexar International

Country of Origin

‎China

Is Discontinued By Manufacturer

‎No

Date First Available

‎September 5, 2019

Photos: Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)

11 reviews for Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)

3.6 out of 5
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  1. Rescue A Dog

    Good value and pretty fast especially considering I’m running it through a PCIe 2.0 x1 USB 3.0 header card. Warms up a little but I wouldn’t call it “hot”. Very impressed with the speed (mainly how fast it is even running on PCIe 2.0 bandwidth) although I wish write speeds were better it’s not easy (nor cheap) to find on good value flash drives. Hopefully it holds up the test of time and proves reliable. Too many bad reviews about flash drives makes you nervous about putting valuable data on them. Did way too much research before buying a simple flash drive but I’m happy with my decision.

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  2. Juan L. Deaza

    Hi. If you connect it to a USB 3.0 port the speeds are 29/44 w / r but if you connect it to a 3.1 port it goes up to a maximum of 260mbs / 60mbs r / w which is very good for its price.
    It does not overheat and its material and size is premium.
    It is recommended for recent teams to take advantage of their speed otherwise they will not take advantage of their potential.

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  3. Rescue A Dog

    I have no idea why Amazon would want a “warmth” rating on a USB drive. Do they mean the temperature when it’s operating, and then, what does 1-5 indicate? Honestly!

    Anyway, the Lexar M45 64GB USB 3.1 Flash Drive (LJDM45-64GABSLNA) jumpdrive arrived in record time and I ran it through its paces. Loading 63 GB of videos (after reformatting to ExFAT — FAT32 won’t even attempt anything larger than 4 GB) averaged around 45 MB/s and stayed even throughout the writing period. The Lexar did get warm to the touch but cooled down to my finger temperature within a few seconds of grasping it. This is probably a good indication that the internals are well heat sunk to the aluminum shell and that the shell’s thermal mass and radiation is easily capable of managing the working temperature rise. Remember that the RATE of thermal radiation is proportional to the “delta T.” And yes, USB3.1 flash drives DO generate heat and that heat has to go somewhere.

    The first thing I did was to clip a short leash onto the tiny jumpdrive. It’s pretty diminutive and fits the USB port snugly. Being tapered, without some sort of a leash to remove the drive, you will certainly have to employ some vigorous wiggling during extraction and this will indoubtedly place undo wear and tear on both the jumpdrive and your USB port. As mentioned by others, that nice loop of thermal metal is not only good for tugging but also invites the attachment of a visible tag. A typical leash serves both purposes and if you wish to tuck it out of the way, say in your Tesla Model 3 or Y, you can leave it unobtrusively, au naturale.

    The upside is that the jumpdrive is unlikely to become accidentally dislodged during normal use. Even with a short leash for, visibility and extraction, this sturdy and thermally efficient Lexar jumpdrive seems to be more practical than those ultra-short flashdrives that are popping up all over the place. See pix for size comparison and if you absolutely NEED a cap, why just steal one from a lesser drive or a USB cable. Metal doesn’t always win over plastic but in this case, I think it does.

    The Lexar is a tad pricey but it appears thoughtfully made. Check the one-star reviews and caveat emptor.

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  4. Juan L. Deaza

    Just received this, plugged it in and checked properties and was not happy to see that the available storage is really only 119 GB not the 128GB stated. It shows the used space as 23.7 MB (yes MB not GB), so Lexar, where is the rest of it?
    The actual capacity is 7% less than what is stated and what I paid for. I understand that most of these always have some pre-dedicated space and the package states that “some of the listed storage capacity is used for formatting and other purposes and is not available for data storage” but 9 GB of unusable storage seems to be a bit absurd.

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  5. Joe User

    I got the 128GB and it worked fine. It is pretty small and does get warm but not overly hot.
    It isn’t super fast but if you are just buying something to store videos, music or photos it should be fine.
    I think it’s a good product however there is no cap and because it is about half the size/smaller than the bulkier plastic sticks you will want to loop it onto something or put it in a box or you will lose it.

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  6. Brandon

    Comparison test using Macrium Reflect disk image backup (output file approx. 20 Gb)

    Sandisk versus Lexar comparison (both 128Gb, USB 3.1):

    Sandisk performance: Achieved lightning fast write transfer rates of 1.2 Gb/s and runs warm (not hot)
    The complete process took 3 min 10 seconds

    Lexar performance : Crawled along at glacially slow write transfer rates of 150 Mb/s and runs hot. I cancelled the process as I’m sure it would have taken over 25 minutes compared to the Sandisk 3 min 10 seconds).

    Summary: The Lexar MA5 slow performance reminds me of the early USB 2.0 flash memory sticks; something fishy here. It’s going back.

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  7. Todd S.

    I bought the 64GB and 128GB versions, and other brands as I wanted a few, and I tested the 64GB version first but it wouldn’t write normally.
    Read speeds were fine, stable if I recall correctly. Write speeds were horrible and would intermittently stop every few seconds.
    It would go up to a certain amount of MB/s (I forget about much), and then after 2 seconds or so back to 0mb/s, then back to that number for 2 seconds, back 0 mb/s.

    Not sure if it’s defective but I have a feeling they’re all like that. I quickly packaged it up and returned it.
    Build quality was fine though. Very compact. I wish it worked well.

    The other flash drives that I got from Samsung and Patriot (Rage Pro – which is awesome and super fast at 280mb/s and over) work fine and have stable read/write speeds.

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  8. Todd S.

    I’m not sure why these are getting so hot. I have several USB sticks, and never experienced anything like this. I purchased 3 for the use of backup purposes for desktops and laptops around my house, but what I noticed is that within a minute or two of being plugged in, the aluminum casing gets excessively hot to the touch – especially if placed in a powered USB hub. Even when connected to ta PC, if there is data being transferred back and forth they will get extremely hot. This is worrisome as I don’t want the drives to fail in the middle of use – especially due to excessive heat.

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  9. Joe User

    After 2 months it suddenly asked to be formated without giving me access to my 80 GB of data. Also couldn’t get more than 65 MBps in my up to date usb 3.1 port. Pure regret. Update: after formatting (exFAT) write speed is 2MBps, Y2K much? What a joke.

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  10. B. E. Sharrow

    The Lexar 128GB version is fast, as shown by the benchmark photo I attached to this review. The read speed is easily 200+ MB/sec with just a USB 3.0 port. Testing shows the write speed is near 60 MB/sec. Depending on the test I could hit 60, but was consistent in the 58-60 MB/sec write speed range. This unit is made in Taiwan, so no supporting ChiCom labor here. The unit comes formatted Fat32 with 128K cluster size, so capacity shows around 117 GB. I formatted ExFAT with 8192 byte cluster size to get my capacity down to 116 GB. Note that a smaller cluster size will yield slightly lower listed capacity than formatting with a large cluster size. Some of my other 128 GB flash drives have more capacity, but the lexar is a 128 billion byte flash drive. Just divide by 1024 a few times to get what your computer will show.
    I recommend the 128 GB version of this flash drive. It does get hot, but I was able to format the whole thing twice (not a quick format) and do testing to make sure this unit was not counterfeit (it wasn’t).
    I tend to avoid Sandisk USB drives because they have an encrypted storage controller that can get corrupted by normal use. This has happened twice to me, so I buy drives that don’t needlessly encrypt storage locations on the drive. I use a software encryption program to do my actual file encryption on the device. This enables a much less cost intensive recovery if I have to send off a Lexar USB for data recovery.

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  11. B. E. Sharrow

    I first tried the drives (I bought 3) in my usb 3.1 hub on my desk and it initially read the drive and I could see the lexar files they contained. However as soon as I tried to write to the drive it became unrecognizable by windows. All three did this. I tried it in another computer and it worked fine, and when I tried it in a native port on my PC it worked fine as well. I just think that it may have problems with the USB hub. I use the hub for my peripherals and for other USB drives with no issue, so the problem is so far unique to this drive.
    But when I got it running, it ran FAST! Wrote a 350mb file in about 3-4 seconds and transferred it back to my computer in about 2 seconds. And the drive is very small so you are unlikely to find a port that it won’t fit in. Yes, it could be lost easily, but if you are worried about that, just attach a keychain to it.

    Wish it worked with my hub but I would buy it again for sure.

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    Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)
    Lexar JumpDrive M45 128GB USB 3.1 Flash Drive (LJDM45-128ABSLNA)
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