Course speed SSD at 40 MB/s with USB - C cable

I recently bought a Samsung T3 USB - C SSD drive for use with my MacBook.

But right now I am facing a problem of course speed on that:

I bought it used with my MacBook retina 12' because of the support of USB - C

But there is a real problem for this drive to use with cable USB - C for USB - C:

If I use the USB - C to C USB Apple cable, I get only speed USB 2.0 which is capped at 40 MB/s in and out. As the 1-3 photo shows below.

If I use it with USB - cable USB - A C I USB 3.0 speed of 425 MB/s 400 MB/s on. But the downside part is for MacBook, I use a USB - C for the USB - A adapter as shown in photo 4-6.

If Apple is any course speed cable USB - C or Samsung should take the blame that send the wrong information of speed USB 2.0 for Macbook?

Use with direct cable Apple USB - C (I tried another cable USB - C like same problem anker/Chotech) cable is not the problem

You can see that the speed in the information system is listed as USB 2.0 at 480 MB/s

A speed test to confirm it is limited to the USB 2.0 standard:

If I use a USB to adapter USB - C and use the USB - C for cable USB - A on the SSD. It will run at full speed:

You can see that the speed in the information system is listed as USB 3.0 to 5 Gbps

A speed test confirm this works:

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The USB - C to C USB cable that comes with the MacBook is not supposed to be used for data, this is to be able to only. You will need to buy a USB - C data cable.

Tags: Notebooks

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