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Psybur 16.3K Views
Mar 4, 2024 5:44 PM

256GB Samsung BAR Plus USB 3.1 Flash Drive (Champagne Silver)

$20

$27

25% off
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Deal Details
Amazon has 256GB Samsung BAR Plus USB 3.1 Flash Drive (Champagne Silver, MUF-256BE3/AM) for $19.99. Shipping is free w/ Prime or on $35+ orders.

Thanks to community member Psybur for finding this deal.

About this item:
  • Redefine everyday file transfers with speeds up to 400MB/s
  • Reliable and secure storage for your photos, videos, music, and files
  • Rugged metal casing for durability with key ring to prevent loss
  • Safeguard your data (Water proof, shock proof, magnet proof, temperature proof, x ray proof)
  • USB 3.1 flash drive with backwards compatibility (USB 3.0, USB 2.0)

Editor's Notes

Written by slickdewmaster | Staff
  • About this deal:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this store:

Original Post

Written by Psybur
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 256GB Samsung BAR Plus USB 3.1 Flash Drive (Champagne Silver, MUF-256BE3/AM) for $19.99. Shipping is free w/ Prime or on $35+ orders.

Thanks to community member Psybur for finding this deal.

About this item:
  • Redefine everyday file transfers with speeds up to 400MB/s
  • Reliable and secure storage for your photos, videos, music, and files
  • Rugged metal casing for durability with key ring to prevent loss
  • Safeguard your data (Water proof, shock proof, magnet proof, temperature proof, x ray proof)
  • USB 3.1 flash drive with backwards compatibility (USB 3.0, USB 2.0)

Editor's Notes

Written by slickdewmaster | Staff
  • About this deal:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this store:

Original Post

Written by Psybur

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+23
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28 Comments

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Mar 4, 2024 6:15 PM
76 Comments
Joined Nov 2023
QuirkyRabbit66Mar 4, 2024 6:15 PM
76 Comments
How is a USB 3.1 drive limited to 400MB/s?
Mar 4, 2024 6:50 PM
79 Comments
Joined Jan 2011
SkarthMar 4, 2024 6:50 PM
79 Comments

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Quote from QuirkyRabbit66 View quoted comment :
How is a USB 3.1 drive limited to 400MB/s?
Lowercase g or m is bit, upper case G or M is in bytes

One byte is 8 (or 10 depending on the usage) bits

USB 3.1 Gen 1 = 5gbit = 666Mbytes
USB 3.1 Gen 2 = 10gbit = 1.25Gbytes

This is only the maximum (Theoretical) bus transfer speed.

The main answer is, the USB thumb drive itself has a controller and/or flash memory that can only read/write at up to a certain speed, and is the primary speed limit.

In dumb terms, a car can have a 240mph speedometer, but is only actually capable of going 120mph on its own.
9
Mar 4, 2024 7:48 PM
5.1K Comments
Joined Jul 2004
Parato OptimalMar 4, 2024 7:48 PM
5.1K Comments
Quote from Skarth View quoted comment :
Lowercase g or m is bit, upper case G or M is in bytes

One byte is 8 (or 10 depending on the usage) bits

USB 3.1 Gen 1 = 5gbit = 666Mbytes
USB 3.1 Gen 2 = 10gbit = 1.25Gbytes

This is only the maximum (Theoretical) bus transfer speed.

The main answer is, the USB thumb drive itself has a controller and/or flash memory that can only read/write at up to a certain speed, and is the primary speed limit.

In dumb terms, a car can have a 240mph speedometer, but is only actually capable of going 120mph on its own.
Liked for not only being correct but for the way you said it. I like the speedometer analogy.
Mar 4, 2024 10:17 PM
1.7K Comments
Joined Oct 2013
TooManyMindMar 4, 2024 10:17 PM
1.7K Comments
These drives technically can reach the advertised speeds but only initially. After that, they'll gradually throttle down because of the heat it generates during use. Ultimately, it'll only achieve a quarter of the advertised speeds over a long duration in my experience.
Last edited by TooManyMind March 4, 2024 at 11:45 PM.
Mar 5, 2024 8:48 PM
6.3K Comments
Joined Jul 2017

This comment has been rated as unhelpful by Slickdeals users.

Pro
Mar 5, 2024 9:03 PM
1.8K Comments
Joined Dec 2007
phewry
Pro
Mar 5, 2024 9:03 PM
1.8K Comments
Quote from QuirkyRabbit66 View quoted comment :
How is a USB 3.1 drive limited to 400MB/s?
It's 3.1 limited to 400MB/s.

On the serious note, good for the value/brand. You can use it for Blink sync module.
Mar 5, 2024 9:34 PM
602 Comments
Joined Jun 2014
tony310sMar 5, 2024 9:34 PM
602 Comments
Will these work on tesla? they look identical.

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Mar 5, 2024 9:42 PM
3.4K Comments
Joined Jun 2014
EdEd1190Mar 5, 2024 9:42 PM
3.4K Comments

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Quote from tony310s View quoted comment :
Will these work on tesla? they look identical.
I've been using this since March 2023 in my Tesla, for an upgrade over the 128GB. Appears to be identical, seems like Tesla is using this as the OE provider. Not sure if the internals of the drive have any different specifications for Tesla, but externally the drive looks identical.

Anyway, I've been using it for a year now with no issues. Also, the 256GB gives a lot more recording space for security mode and dash cams.

You will have to format the drive first. On the touchscreen: Controls > Safety > Format USB Drive
Last edited by EdEd1190 March 5, 2024 at 01:44 PM.
1
Mar 5, 2024 9:43 PM
1.2K Comments
Joined Apr 2009
Mr_SpiffyMar 5, 2024 9:43 PM
1.2K Comments
Quote from Luigis3rdcousin View quoted comment :
400MB is actually about 50 megabytes per second. Very meh.

This is why I'm a huge fan of these nvme usb adapters and you can pickup a cheap nvme drive somewhere, even eBay and have a 300-900 megabytes per second thumb drive on steroids.

This is the one I'm using with my spare sk hynix 500gb drive

https://www.amazon.com/gp/aw/d/B0...asin_title

It doesn't have heat sinks and it throttles but that's fine, it still beats a thumb drive
That's incorrect. Capital MB = megabytes. This drive says 400 megabytes per second. Not megabits.
1
Mar 5, 2024 9:48 PM
881 Comments
Joined Nov 2022
CapitalEffYouMar 5, 2024 9:48 PM
881 Comments
Just FYI, staples has these for $19.99 too, but rewards and coupons apply, [if you have any].
got mine, the 256gb, for $10.11
Mar 5, 2024 10:51 PM
117 Comments
Joined Aug 2011
mimi_mechantMar 5, 2024 10:51 PM
117 Comments
Quote from CapitalEffYou View quoted comment :
Just FYI, staples has these for $19.99 too, but rewards and coupons apply, [if you have any].
got mine, the 256gb, for $10.11
Thanks for the heads up. I used a $10 Staples email coupon too that I forgot about. Cheers.
Mar 6, 2024 6:47 AM
1.5K Comments
Joined Nov 2010
scholzpdxMar 6, 2024 6:47 AM
1.5K Comments
Adding these was a really cheap way to add storage to my Series S and X. Xbox One games play well from it.
Mar 6, 2024 8:48 AM
2K Comments
Joined Mar 2014
scotts9612Mar 6, 2024 8:48 AM
2K Comments

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How do you avoid getting fakes from Amazon The last one I got was about quarter of the capacity
1
Mar 6, 2024 11:31 AM
10.9K Comments
Joined Jul 2006
BladeDMar 6, 2024 11:31 AM
10.9K Comments
Quote from scotts9612 View quoted comment :
How do you avoid getting fakes from Amazon The last one I got was about quarter of the capacity
Test it and send it back if it is a fake.
Last edited by BladeD March 6, 2024 at 09:50 AM.

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Mar 6, 2024 2:46 PM
5.2K Comments
Joined Dec 2009
masterz13Mar 6, 2024 2:46 PM
5.2K Comments
Quote from Luigis3rdcousin View quoted comment :
400MB is actually about 50 megabytes per second. Very meh.

This is why I'm a huge fan of these nvme usb adapters and you can pickup a cheap nvme drive somewhere, even eBay and have a 300-900 megabytes per second thumb drive on steroids.

This is the one I'm using with my spare sk hynix 500gb drive

https://www.amazon.com/gp/aw/d/B0...asin_title

It doesn't have heat sinks and it throttles but that's fine, it still beats a thumb drive
400 megaBYTES per seconds, not megaBITS. So it is actually quite fast.

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