DIGIT-ARC read-only archive · snapshot: July 23, 2026

USB 3.0 for external hard drive

4 posts · originally from https://geek.digit.in/community/threads/usb-3-0-for-external-hard-drive.162128/

J
johnluke Original post #1
Aug 22, 2012 at 11:51 AM
hi,
My PC configuration is little old and i have usb 2.0.Now i want to purchase external hard drive and it has usb 3.0 does it means that hard drive will not be detected or performance will be slow.Can someone shed some light on this issue.what happens if hardware has 3.0 and PC has 2.0.

Thanks
coderunknown
Aug 22, 2012 at 11:57 AM
performance will be normal. you'll get USB 2.0 speed. to get higher speed you need to have USB 3.0 on both the PC/laptop as well as device.
d6bmg
d6bmg #3
Aug 22, 2012 at 12:06 PM
All USB3.0 device are backward compatible with USBS2.0 and USB1.1 devices/ports.
pulkitpopli2004
Aug 22, 2012 at 4:24 PM
i thing that can be done is that you can purchase PCIE USB3.0 card and then use your external USB3.0 HDD to see the upgrade in performance.