...is this slow for USB 3.0?

[Virdi]

Hi all,

So I have a MSI Z97 Gaming 5 Motherboard and have connected a USB 3.0 portable Hard Drive.

When copying files to the USB HDD I am getting a transfer speed for 40MB/s.

...That is slow right?

Thanks

 

[Vince]

Hi all,

So I have a MSI Z97 Gaming 5 Motherboard and have connected a USB 3.0 portable Hard Drive.

When copying files to the USB HDD I am getting a transfer speed for 40MB/s.

...That is slow right?

Thanks

Simple answer is yes, USB3 should have a max throughput of 640MBps, USB2 is like 60MBps.

 

[ChocoViennese]

I would hazard a guess the hard drive is slow rather than the connection. Drive write speeds and file size will determine how fast in this scenario. If its a slow mechanical drive writing small files, transfer speeds could well be 40 MB/s

 

[zola25]

For reference I've just tested my 2Tb USB 3 drive with read/write speeds of ~110MB/s and thats encrytped too.

Transfer speed can also be impacted by how much free space remains, as mechanical drives cannot sustain peak transfer rates across the entire surface of disk.

 

[MaXxBoulton]

Ones the cache is full your limited by the speed if the drive.

 

[Troop]

USB3 to external M2 drive in caddy(not NVME).