Type c usb 3.1 speed July 8, 2019 16 32 64 128 Type c vs usb 3.1 speed Usb 3.1 type c speeds Usb type c 3.1 gen1 speed Usb type c 3.1 gen2 speed Usb type c 3.1 max speed Usb 3.1 type c high speed charging data cable Usb 3.1 type c vs usb 3.0 speed Usb 3.1 type c transfer speeds Usb 3.1 type c port speed