Unit opened up and verified RTL8812BU has USB 3.0 interface and plug, however unit connects to and shows as a 2.0 device.
lsusb
Bus 002 Device 006: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
| Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
| Port 3: Dev 4, If 3, Class=Human Interface Device, Driver=usbhid, 12M
| Port 3: Dev 4, If 1, Class=Audio, Driver=snd-usb-audio, 12M
| Port 3: Dev 4, If 2, Class=Audio, Driver=snd-usb-audio, 12M
| Port 3: Dev 4, If 0, Class=Audio, Driver=snd-usb-audio, 12M
| Port 4: Dev 6, If 0, Class=Vendor Specific Class, Driver=rtl88x2bu, 480M
lsusb -v -d 0bda:b812 | grep -i interface
bNumInterfaces 1
Interface Descriptor:
bInterfaceNumber 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol802.11ac NIC
USBView
Manufacturer: Realtek
Serial Number: 123456
Speed: 480Mb/s (high)
Bus: 2
Address: 6
USB Version: 2.10
Device Class: 00(>ifc )
Device Subclass: 00
Device Protocol: 00
Maximum Default Endpoint Size: 64
Number of Configurations: 1
Vendor Id: 0bda
Product Id: b812
Revision Number: 2.10
Config Number: 1
Number of Interfaces: 1
Attributes: 80
MaxPower Needed: 500mA
Interface Number: 0
Name: rtl88x2bu
Alternate Number: 0
Class: ff(vend.)
Sub Class: ff
Protocol: ff
Number of Endpoints: 5
Endpoint Address: 84
Direction: in
Attribute: 2
Type: Bulk
Max Packet Size: 512
Interval: 0ms
Endpoint Address: 05
Direction: out
Attribute: 2
Type: Bulk
Max Packet Size: 512
Interval: 0ms
Endpoint Address: 06
Direction: out
Attribute: 2
Type: Bulk
Max Packet Size: 512
Interval: 0ms
Endpoint Address: 87
Direction: in
Attribute: 3
Type: Int.
Max Packet Size: 64
Interval: 500us
Endpoint Address: 08
Direction: out
Attribute: 2
Type: Bulk
Max Packet Size: 512
Interval: 0ms
iInterface 2 802.11ac NIC
Amazon site, vendor only sells here? https://www.amazon.com/dp/B0995TNB3M?psc=1&ref=ppx_yo2ov_dt_b_product_details
Vendor site Zoolan claims only sold at Amazon. https://www.zoolantech.com/product/html/138.html
Unit opened up and verified RTL8812BU has USB 3.0 interface and plug, however unit connects to and shows as a 2.0 device.
lsusb Bus 002 Device 006: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
lsusb -t /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M | Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M | Port 3: Dev 4, If 3, Class=Human Interface Device, Driver=usbhid, 12M | Port 3: Dev 4, If 1, Class=Audio, Driver=snd-usb-audio, 12M | Port 3: Dev 4, If 2, Class=Audio, Driver=snd-usb-audio, 12M | Port 3: Dev 4, If 0, Class=Audio, Driver=snd-usb-audio, 12M | Port 4: Dev 6, If 0, Class=Vendor Specific Class, Driver=rtl88x2bu, 480M
lsusb -v -d 0bda:b812 | grep -i interface bNumInterfaces 1 Interface Descriptor: bInterfaceNumber 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol802.11ac NIC
USBView
Manufacturer: Realtek Serial Number: 123456 Speed: 480Mb/s (high) Bus: 2 Address: 6 USB Version: 2.10 Device Class: 00(>ifc ) Device Subclass: 00 Device Protocol: 00 Maximum Default Endpoint Size: 64 Number of Configurations: 1 Vendor Id: 0bda Product Id: b812 Revision Number: 2.10
Config Number: 1 Number of Interfaces: 1 Attributes: 80 MaxPower Needed: 500mA
USBView