Why are my USB 3.0 so slow??

bukuxx

Commendable
Feb 12, 2017
30
0
1,540
Both of my
-ADATA HV610 (1T)
-UFD 3.0 Silicon-Power (32GB)
are EXTREMELY SLOW.
They come with 3.0 when I have done quite a bit of research, i have found that 3.0 should be capable of copy files and handle up to ~600mbps. But the problem is that I am copying my files on 3-30mbps
...
I have no idea why they are so slow..

Laptop: Dell 15R Inspiron 5520

What is going on and how can I fix this?? Please help

PS:I am not a native English speaker so please excuse my English..


*UPDATED*
3-30mbps above means 3-30 MB/second
 
Firstly, capitalisation matters. MB/s, Mb/s, mB/s, and mb/s are completely different. The latter two are never used; they're far too small to be useful. I'm assuming you're talking solely about MB/s.

While USB3.0 itself can handle 600+MB/s, that doesn't mean that the devices on either end of the chain can actually supply or receive all that data.

It's like having a six lane highway with a single lane bridge at one end.

Mechanical HDDs usually max out at about 100MB/s, whether you're copying to or from them. So if you're copying off your PC's HDD, and doing something else at the same time, that could easily limit it to <50MB/s.

It's common for flash memory to have a small amount of 'fast' memory (a few tens to hundreds of MB, able to write at maybe 100MB/s), then the rest slow (<20MB/s). So it's fast writing the first few seconds, then slow for the rest, once the cache fills up.

Plus, flash memory slows down as it gets older and wears out.

30MB/s is reasonable, 3 isn't really.
 
one last thing to consider as well, when a laptop is not connected to AC (120v or 220v) and the setting for power in widows have not been set to be best performance, the laptop will automatically throttle the USB port to save energy. and lastly, USB3.0 Laptops often only have 1 USB 3.0 and the other are usb 2.0, USB 3.0 ports are normally blue coloured UISB ports where usually USB 2.0 ports are black when looking at them.
 


Would this be the reason? My battery is dead, and I DO MEAN IT'S DEADDD. http://prntscr.com/e7o89n (click the link for image) and I stopped using this laptop for nearly a year by myself (so I handed it over to my cousin for his personal gaming use). But when I got it back about at the start of Feb. I encounter many problems such as:
-battery (That^)
-my "qweruiopzxcvm,./" (without the quotation marks of course) don't work anymore
-surely a few other keys also became malfunction
-unsuccessfully flash update my BIOS driver update due to insufficient amount of battery percentage (less than 10%)
I am planning to send my laptop overseas in about a week to to where I originally bought it from (trust me, it's trust worthy and I think I am still under warranty) to fix my keyboard keys and probably 'consider replacing a new battery'.

Let me know if any of my replied information help..Thx
 


http://prntscr.com/e7oowd
SO, is 20 reasonable???
 
Bare in mind that USB 3 (normally) uses blue end tongue connectors, so if you are using an old USB 2 cable with black or white tongues, it will only run at USB2 speed.
USB 3 has more wires and contact points in the cable and connector blocks and are coloured blue to define the difference
 


My ADATA is using SS cable with 3.0 at its end
My SP 32GB USB comes with BLUE 3.0 USB too
I connect both of them to my laptop of which comes with 4 BLUE 3.0 USB ports (2 on each sides)
:))
 


what do you mean? I don't understand 🙁
 


What does this mean, dear??
Or are you just answering to the person above your quote that I quoted?
 
Last night before I went to sleep, I tried it on my friend's laptop. Dell XPS 15 that comes with thunderbolt USB ports and 512 SSD. The result was not much different. Copying out onto the laptop drive ran on about 70 MB/second.
Copying the same file back ONTO the same S-P USB ran on about 24 MB/Second.

I guess it isn't about the laptop?? Maybe do I need any configuration for my USB??

PS: I already tried putting it to higher performace policy in 'Disk Device' or sth (whatever it called) in 'manage' but the 32GB would not let me enable to tick and apply the 'Enable write caching on the device'.
While my ADATA (1T) let me configure both the option, none of the two devices improved their performance nonetherless. 🙁
 
What's the different between 'OPERATING' and 'USED' ?? Anyways; I can't find where my USB is right now but I'm pretty sure it's the 32GB 'OPERATING'..
Well now it makes sense since the site authentic saying it max out with 25 MB/s write.
Thanksss :/ 🙂 🙁

How about my other drive device though??!?! Any idea??
 


What's the different between 'OPERATING' and 'USED' ?? Anyways; I can't find where my USB is right now but I'm pretty sure it's the 32GB 'OPERATING'..
Well now it makes sense since the site authentic saying it max out with 25 MB/s write.
Thanksss :/ 🙂 🙁

How about my other drive device though??!?! Any idea??
 


Been trying to find its specs but unable to.

Fyi, yesterday I tried my SP with my other self-built computer desktop.
Core i5 3.2Ghz
Ram 8GB
SD 1T
and I plugged it via external 3.0 port connected to my Dell 2.0 port and the speed was extremely surprising.
I cannot remember too much about write, (around the same probs) but read at 1.08GB/s

I saw 'operating' and 'used' in the website you put down for me. There was a small gif that flicked through between 3 pictures of the SP USB.
 


So we've figured one out. How about the other one? I can't really find its specs. Can you please help me?

and today again, I tried copying a 15.04GB folder (read) and It was running on only 13 MB/s - My Silicon-Power 32GB USB