why it take a much time when copy a large file in USB - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Software > Microsoft Windows and Software
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 04-13-2006, 06:06 AM   #1 (permalink)
Newb Techie
 
Join Date: Apr 2006
Posts: 12
Default why it take a much time when copy a large file in USB

When I copy a large space of file i.e 80MB on USB drive, it takes much time, near about 30 minutes.
What's the reason of that, why it take so much time to copied a any large file in USB drive.



Shahid Nawaz
__________________

snkhokhar is offline  
Old 04-13-2006, 08:34 AM   #2 (permalink)
Master Techie
 
Alvin.C's Avatar
 
Join Date: Jun 2004
Location: United Kingdom
Posts: 2,580
Default Re:

Hello,

Probably because your USB flash drive isn't USB 2.0, or your USB ports on your PC's motherboard aren't USB 2.0, or both.

USB 2.0 supports theoretical transfer rates of up to 480Mbps. The older USB specification (1.0 / 1.1) only supports theoretical transfer speeds of up to 12Mbps. I say theoretical because the more USB devices connected to your PC, the greater bandwidth being used, which can result in lower speeds. Plus you'll very rarely see speeds as high as 480Mbps being reached.

But still, USB 2.0 is much faster. All devices need to be USB 2.0 compatible, and be High-Speed not just Full-Speed compatible (which some manufacturers stamp on particular USB products, making it easy to mislead).

Difference is a High-Speed device can transfer at USB 2.0 speeds...whereas a device with Full-Speed compatability can be used in a USB 2.0 port, but can only operate at USB 1.0 / 1.1 speeds.

Both the USB hub and devices need to support USB 2.0 High-Speed.
__________________

__________________
Alvin.C
linkedin.com/in/alvinwkchan

|Gaming PC| |Dell Latitude E7250| |Macbook Air 13" (Mid 2013)|
|Windows 10 Pro (x64)| |Intel Core i5-6600 @ 3.3 GHz| |MSI NVIDIA GeForce GTX 1080 Gaming X| |Noctua NH-D15S CPU Cooler| |Gigabyte GA-Z170MX-GAMING 5 mATX Motherboard| |Samsung 840 Pro 256GB SSD| |Corsair Vengeance LPX 16GB DDR4-SDRAM| |OCZ ModXStream Pro 700W Modular PSU| |NZXT Vulcan Micro ATX Case|
Alvin.C is offline  
Old 04-13-2006, 01:41 PM   #3 (permalink)
Field Engineer
 
SHAWN's Avatar
 
Join Date: Nov 2004
Location: Long Island, NY
Posts: 4,697
Send a message via AIM to SHAWN
Default

^He nailed it.
__________________
A+, Network + , HP Certified Tech and MCP

Specs: AMD Phenom II X6 1095T, Asus M477TD, 8GB GSkill Ripjaws DDR3 1600 7-8-7-24 1T, 128GB Crucial M4 SSD, ATi HD4650, W7, 27" HL272 Monitor
SHAWN is offline  
Old 04-13-2006, 02:57 PM   #4 (permalink)
PeugeotEnthusiast
 
NayNay1991x's Avatar
 
Join Date: Dec 2005
Location: United Kingdom, Leicester
Posts: 2,081
Send a message via MSN to NayNay1991x
Default

lol you said it

USB 1.1 allowed a maximum transfer rate of 12Mbits/second. It is now obsolete, but both of its speeds (1.5Mbps & 12Mbps) are being adopted into USB 2.0, and they are now called Original USB officially. Though some manufacturers label their products Full-Speed USB. Note that this seems a bit deceptive as it's easy to mistake Full-Speed for Hi-Speed. You won't be fooled from now on as you now aware that Full Speed USB is only 12Mbits/second where Hi-Speed USB mode is capable of a much faster 480Mbits/second( as Alivn said Above ).

You can identify whether your PC has Hi-Speed USB or not relatively easy. Open Device Manager and expand the Universal Serial Bus section. There should be an "Enhanced" USB host controller present.
__________________
http://instagram.com/nay206pug#
NayNay1991x is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.