[SOLVED] what is a GB/s in a type-c USB header?

[Jaiden_GX]

As the tittle suggested,
I have stumbled upon a motherboard that featured a type-c USB header which is cool but I got confused by the "GB/s 20" and I dont know what does it actually means

could someone plz help?

 

[Lafong]

I think its supposed to mean Gigabytes per second.

Rather than Gigabits per second.

1000 Gigabytes per second is 8000 Gigabits per second.

The speed you would actually realize through that port will vary depending on from what exactly and to what device exactly.

In my own case, I get about 1.05 terabytes per hour through that port with my own drives and my own data. Very little faster than through an A port.

 

[hotaru.hino]

20 gigabytes per second is impossible on any of the current standards USB-C is compatible with. The fastest it supports is Thunderbolt 3, which is only good for 80 gigabits per second. Even if all of that bandwidth were used in 8-bit bytes (it isn't), that's only 10 gigabytes per second.

It sounds like the motherboard is advertising USB 3.2 Gen 2x2 capabilities on that port. Thunderbolt 2 would be a close second, since it's also 20 gigabits per second, but I doubt they would do that.