Hi together,

i build a new gaming desktop with the Z370-Gaming (Wifi) MATX board. I installed all drivers from the ASUS website but if i plug in my Samsung Portable SSD T3, it just reach 35-40 MB/s in write and read. It should reach like 400MB/s. If i plug it to my Nvidia RTX2070 USB-C Port, it reached more than 400 MB/s.

I tested all USB 3 (blue), USB 3.1 Ports (red) and the USB 3 from the front panels. All Ports are with the same speed in read and write.
I also checked BIOS, the USB Configuration is grey, i can't change something but it shows me XHCI enabled.

I reinstalled the intel chipset driver and also renewed the usb controllers in device manager. What else can i do? Maybe someone can help me to figure this problem with the USB 3 Ports?

Things i pluged in through Mainboard:

- 2 wireless Dongle pluged in through USB 2 Ports (1 Dongle for the keyboard and the other for the mouse)
- Speaker 3.5mm Audio

Sorry for my bad englisch.

Thank you in advance! Many greets from Germany