External SSD drive not detected as SSD drive I've got a Sandisk Extreme SSD drive as an external drive for my MacBook Pro. It has no problems with connecting to the MacBook or being recognized as an external drive.

The problem is it is not recognized as SSD drive.



Here is the speed test result by Blackmagic Disk Speed Test app:



Attached directly to MacBook:



To compare, default drive:



Where should I look for an issue? I'm using the monitor USB hub as a connector, could it be an issue? Or any other adapter?

No matter if I connect drive through an adapter or Thunderbolt port, it is not recognized as SSD drive.

How to make macOS to see this drive as SSD and run with better speed?
I'm using the monitor USB hub as a connector, could it be an issue? 


Yes, that's probably the problem. Based on the speeds you're seeing, I suspect that the USB hub in the monitor is a USB2 device; connecting your drive through that hub is slowing down the connection to USB2 speeds.

Connect the SSD directly to your computer, or use an external USB3 hub.