USB2 vs USB3 - speed test?

wfriedwald

macrumors regular
Original poster
Jan 1, 2017
178
12
I've done speed tests on internet connections, but I was wondering, is there a way to do them to test a USB adaptor?

I bought a an adaptor that was sold as USB3, but it has a little white inner prong (sorry, I know that's not a technical term) where every USB3 plug that I have seen up to now has a little blue inner prong thing.

I checked the order info and it is indeed advertised as USB3, but I was just wondering if there's any way to test, or to find out for sure.

VABSCE USB Type C to USB Adapter [2 Pack], Thunderbolt 3 to USB 3.0 Adapter

https://www.amazon.com/gp/product/B07Q2SG4Y7/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1


thanks, as always, for any and all feedback!

w
 

chrfr

macrumors G3
Jul 11, 2009
8,183
2,514
I've done speed tests on internet connections, but I was wondering, is there a way to do them to test a USB adaptor?

I bought a an adaptor that was sold as USB3, but it has a little white inner prong (sorry, I know that's not a technical term) where every USB3 plug that I have seen up to now has a little blue inner prong thing.

I checked the order info and it is indeed advertised as USB3, but I was just wondering if there's any way to test, or to find out for sure.

VABSCE USB Type C to USB Adapter [2 Pack], Thunderbolt 3 to USB 3.0 Adapter

https://www.amazon.com/gp/product/B07Q2SG4Y7/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1


thanks, as always, for any and all feedback!

w
If you connect a USB 3.0 device to your computer through the adapter, you can check the System Report application to see if it's connected as USB 2.0 or 3.0.
 

vertical smile

macrumors 68040
Sep 23, 2014
3,923
5,122
If the only thing you wanted to know is whether it was USB3 or not, the System Report that @chrfr mentioned should be sufficient.

If you wanted to test the read/write on a drive connect to the adapter, then Blackmagic Disk Speed Test is on the Mac App store and is a pretty popular tool to use.
 

Boyd01

Moderator
Staff member
Feb 21, 2012
4,194
1,875
New Jersey Pine Barrens
The Blackmagic test will certainly be illuminating with an external disk. My inexpensive USB hard drives show ~170MB/sec on USB3 but drop to about 30MB/sec on USB2. :eek: