$ iperf3 -c 192.168.0.1
Connecting to host 192.168.0.1, port 5201
[  4] local 192.168.0.17 port 41386 connected to 192.168.0.1 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec  33.6 MBytes   282 Mbits/sec    0    120 KBytes
[  4]   1.00-2.00   sec  33.0 MBytes   277 Mbits/sec    0    120 KBytes
[  4]   2.00-3.00   sec  32.9 MBytes   276 Mbits/sec    0    120 KBytes
[  4]   3.00-4.00   sec  32.9 MBytes   276 Mbits/sec    0    120 KBytes
[  4]   4.00-5.00   sec  33.0 MBytes   277 Mbits/sec    0    120 KBytes
[  4]   5.00-6.00   sec  32.9 MBytes   276 Mbits/sec    0    120 KBytes
[  4]   6.00-7.00   sec  33.0 MBytes   277 Mbits/sec    0    120 KBytes
[  4]   7.00-8.00   sec  32.9 MBytes   276 Mbits/sec    0    120 KBytes
[  4]   8.00-9.00   sec  33.0 MBytes   277 Mbits/sec    0    120 KBytes
[  4]   9.00-10.00  sec  32.9 MBytes   276 Mbits/sec    0    120 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec   330 MBytes   277 Mbits/sec    0             sender
[  4]   0.00-10.00  sec   330 MBytes   277 Mbits/sec                  receiver

iperf Done.

Bus 001 Device 005: ID 0b95:1790 ASIX Electronics Corp. AX88179 Gigabit Ethernet
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x0b95 ASIX Electronics Corp.
  idProduct          0x1790 AX88179 Gigabit Ethernet
  bcdDevice            1.00
  iManufacturer           1 ASIX Elec. Corp.
  iProduct                2 AX88179
  iSerial                 3 0000000000033C
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           39
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              248mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      0
      iInterface              4 Network_Interface
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              11
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
Binary Object Store Descriptor:
  bLength                 5
  bDescriptorType        15
  wTotalLength           22
  bNumDeviceCaps          2
  USB 2.0 Extension Device Capability:
    bLength                 7
    bDescriptorType        16
    bDevCapabilityType      2
    bmAttributes   0x00000002
      Link Power Management (LPM) Supported
  SuperSpeed USB Device Capability:
    bLength                10
    bDescriptorType        16
    bDevCapabilityType      3
    bmAttributes         0x00
    wSpeedsSupported   0x000e
      Device can operate at Full Speed (12Mbps)
      Device can operate at High Speed (480Mbps)
      Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport   1
      Lowest fully-functional device speed is Full Speed (12Mbps)
    bU1DevExitLat           1 micro seconds
    bU2DevExitLat         101 micro seconds
Device Status:     0x0000
  (Bus Powered)