Confusion about USB-C speed on Aspire 7 A717-72G-76XN

vedifredi
vedifredi Member Posts: 6

Tinkerer

edited August 2024 in Aspire Laptops

I bought an Aspire 7 A717-72G-76XN notebook back in 2018 that I hardly used until now because I was doing everything with a notebook provided by my employer. Anyway, only since a few weeks I'm getting familiar with my own Aspire 7. According to the official specs

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this machine provides USB 3.0 and USB 3.1

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which to my understanding come with 5 and, respectively 10 Gbps transfer rate, unless in this German user manual, USB 3.0 and USB 3.1 are used synonymously for the same transfer rate. But also a Linux command apparently confirms my interpretation as it lists 10000 Mbps for bus 2:

$ lsusb -tv
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 10000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M ...

However, when I plug a 4 TB USB-C SSD device (Kingston XS2000, specified as 3.2 Gen2x2) officially capable of 20 Gbps, it is shown as a 5 Gbps rather than a 10 Gbps device:

$ lsusb -tv
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 10000M
ID 1d6b:0003 Linux Foundation 3.0 root hub
|__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=uas, 5000M
ID 0951:176b Kingston Technology
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M ...

All the website I visited that list hardware specs for this machine refer to USB 3.2 Gen 1 (5 Gbps). So I'm a bit confused now.

Is any of the USB 3 ports of this notebook capable of 10 Gbps? If yes, which one of the two USB ports (C and A)? And if not (if both only support 5 Gbps), why does the official manual specify these two ports with two different types/speeds (3.0 and 3.1)?

Many thanks!

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