Copy file's speed to and fro pendrive

Toggle sidebar Toggle sidebar
S

SiqmaNeedsHelp

Reputable
Mar 23, 2014
15
0
4,510
I was trying to copy some files from SanDisk Cruzer Pop 16GB ( Im not sure whether it has USB 2.0 or USB 3.0) to a brand new Lenovo Y510P through the USB 3.0 port.

The transfer speed from pendrive to laptop = roughly 6~8 MB/s ,

then i tried from from laptop to pendrive

The transfer speed from laptop to pendrive = roughly 1~2MB/s

Why are these speed so slow? Even if the pendrive having USB2.0, it shoulnt be that slow too right?
 
Solution
bicycle_repair_man
Yes, you're right, 1000 MB=1 GB.

USB 2.0 has a theoretical throughput of 480Mbps, but due to other constraints, the effective throughput is 280Mbps.

For every eight megabits, you get one megabyte, so if you do the calculation 280/8 you can determine the maximum effective data transfer rate, which is 35 MBps. Bear in mind that this is the MAXIMUM rate, so other factors (processing power, type of USB device, etc.) will influence this.

A USB 2.0 flash drive doesn't have a separate power supply or its own CPU and RAM, all of which will affect data transfer.
Sort by date Sort by votes
S

SiqmaNeedsHelp

Reputable
Mar 23, 2014
15
0
4,510


So if i buy WD external hard disk with usb 3.0, it should not be that slow right? Im just scare that it is the problem of my laptop
 
Upvote 0 Downvote
S

SiqmaNeedsHelp

Reputable
Mar 23, 2014
15
0
4,510


1000 Megabytes = 1 gigabytes am i correct? but in my case even if the pendrive is USB 2.0, it only has a speed of below 10 Megabytes
 
Upvote 0 Downvote
bicycle_repair_man

bicycle_repair_man

Splendid
Jan 10, 2014
5,752
2
28,960
Yes, you're right, 1000 MB=1 GB.

USB 2.0 has a theoretical throughput of 480Mbps, but due to other constraints, the effective throughput is 280Mbps.

For every eight megabits, you get one megabyte, so if you do the calculation 280/8 you can determine the maximum effective data transfer rate, which is 35 MBps. Bear in mind that this is the MAXIMUM rate, so other factors (processing power, type of USB device, etc.) will influence this.

A USB 2.0 flash drive doesn't have a separate power supply or its own CPU and RAM, all of which will affect data transfer.
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom