Drive Transfer Speeds

[oldsmoboat]

I am transferring 100 GB from an 850 EVO SSD to a USB 3.0 thumb drive in a 3.0 port.

I started out at 25 MB/s and now 1 minute later am running between 4 and 15 MB/s.

Why so slow?

The EVO is capable of 520 and the USB drive 100 MB/s.

CPU: 8 core i7 @ 3.4 GHz
RAM 16 GB
GTX 1070
(Built it about 8 years ago, upgraded video card about 4 years ago)

[crufflers]

I am transferring 100 GB from an 850 EVO SSD to a USB 3.0 thumb drive in a 3.0 port.

I started out at 25 MB/s and now 1 minute later am running between 4 and 15 MB/s.

Why so slow?

The EVO is capable of 520 and the USB drive 100 MB/s.

CPU: 8 core i7 @ 3.4 GHz
RAM 16 GB
GTX 1070
(Built it about 8 years ago, upgraded video card about 4 years ago)

What is the thumb drive really capable of then? They are slow.

[oldsmoboat]

Reviews are saying 25 with bursts to 65. Right now it's between 10-25, guess that's all I'll get.

[crufflers]

Reviews are saying 25 with bursts to 65. Right now it's between 10-25, guess that's all I'll get.

If it is really slow, you can try reinstalling updated drivers for USB 3.0 or the flash drive, reboot windows and retry, turn off the quick removal option for USB if it is on per device in Device Manager (turn on write caching)... might be some Windows setting for the USB removal procedure.

I have gone to external SSD drives with special cables to do my file moving copying and backup. They are not THAT much larger than flash drives when I need to move larger files or lots of them.

https://www.amazon.com/StarTech-com-SATA-USB-Cable-USB3S2SAT3CB/dp/B00HJZJI84/ref=sr_1_3?crid=1NG0T2RBR1RWZ&keywords=StarTech.com%2BSATA%2Bto%2BUSB%2BCable&qid=1659896679&s=electronics&sprefix=startech.com%2Bsata%2Bto%2Busb%2Bcable%2Celectronics%2C124&sr=1-3&th=1

[oldsmoboat]

I'll give that a try, thanks.

[uzigalil]

most thumb drive are painfully slow

[AK bro]

The EVO is capable of 520 and the USB drive 100 MB/s.

The USB drive speed is 100 MB/s? Is that read or write?

Typically a USB thumb drive will have a much much slower write speed than read speed.

A hard drive or an SSD will be better, write speed will be closer to the read speed... but even then, they will read faster than write.

Try doing it the other way. Copy the same file FROM the USB drive TO your hard drive. I bet it's way faster.