On 20.2.2020 23.23, James wrote: > I have this https://www.adata.com/ca/specification/204 > on this motherboard https://asrock.com/MB/AMD/B450M%20Pro4/index.us.asp > I think I should get 10G but it reports 5G. Nope, specs say its a USB 3.2 Gen1 device. Gen1 means 5Gbps signaling rate (per lane) Gen2 means 10Gbps signaling rate (per lane) USB 3.2 added optional dual lane, dual lane written as Gen?x2 USB 3 = USB3.1 Gen1 = USB 3.2 Gen1x1 (one 5Gbps lane) USB 3.1 Gen2 = USB 3.2 Gen2x1 (one 10Gbps lane) USB 3.2 Gen1x2 = (two 5Gbps lanes, 10Gbps total) USB 3.2 Gen2x2 = (two 10Gbos lanes, 20Gbps total) > > lsusb -d 125f:db8a > Bus 002 Device 004: ID 125f:db8a A-DATA Technology Co., Ltd. ADATA USB Flash Drive > > $ lsusb -t > /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M > |__ Port 4: Dev 4, If 0, Class=Mass Storage, Driver=usb-storage, 5000M > > $ sudo lsusb -d 125f:db8a -v > > Bus 002 Device 004: ID 125f:db8a A-DATA Technology Co., Ltd. ADATA USB Flash Drive > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 3.10 > bDeviceClass 0 > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 9 > idVendor 0x125f A-DATA Technology Co., Ltd. > idProduct 0xdb8a > bcdDevice 11.00 > iManufacturer 1 ADATA > iProduct 2 ADATA USB Flash Drive > iSerial 3 29C0501520190025 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 0x002c > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x80 > (Bus Powered) > MaxPower 504mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 8 Mass Storage > bInterfaceSubClass 6 SCSI > bInterfaceProtocol 80 Bulk-Only > iInterface 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x01 EP 1 OUT > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0400 1x 1024 bytes > bInterval 0 > bMaxBurst 8 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x82 EP 2 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0400 1x 1024 bytes > bInterval 0 > bMaxBurst 8 > Binary Object Store Descriptor: > bLength 5 > bDescriptorType 15 > wTotalLength 0x0016 > bNumDeviceCaps 2 > USB 2.0 Extension Device Capability: > bLength 7 > bDescriptorType 16 > bDevCapabilityType 2 > bmAttributes 0x00000006 > BESL Link Power Management (LPM) Supported > SuperSpeed USB Device Capability: > bLength 10 > bDescriptorType 16 > bDevCapabilityType 3 > bmAttributes 0x00 > wSpeedsSupported 0x000c > Device can operate at High Speed (480Mbps) > Device can operate at SuperSpeed (5Gbps) > bFunctionalitySupport 2 > Lowest fully-functional device speed is High Speed (480Mbps) > bU1DevExitLat 4 micro seconds > bU2DevExitLat 4 micro seconds > can't get debug descriptor: Resource temporarily unavailable > Device Status: 0x0000 > (Bus Powered) 10Gbps Gen2 should have a SuperSpeedPlus USB device capability as part of the BOS: SuperSpeedPlus USB Device Capability: bLength 20 bDescriptorType 16 bDevCapabilityType 10 bmAttributes 0x00000001 Sublink Speed Attribute count 1 Sublink Speed ID count 0 wFunctionalitySupport 0x1100 bmSublinkSpeedAttr[0] 0x000a4030 Speed attr ID: 0 10Gb/s Symmetric RX SuperSpeedPlus bmSublinkSpeedAttr[1] 0x000a40b0 Speed attr ID: 0 10Gb/s Symmetric TX SuperSpeedPlus -Mathias
