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Black USB 3.0 Wi-Fi dongle with two fold-out 5dBi antennas

The Perfect Part

The Perfect Part RTL8812BU USB 3.0 Dual-Band Wi-Fi Adapter

SKU CH-FB96-HHY5V

A USB 3.0 dual-band adapter with external 5dBi antennas delivering up to 1300Mbps total wireless rate for Windows and Mac

  • Interface typeUSB 3.0
  • Antenna configurationExternal 5dBi Dual Antenna
  • Product typeAdapter
  • Product colorBlack
  • Key featuresDual-Band; Adapter; Color: Black; Material: ABS; Main Chip:
  • In the box1 × USB 3.0 Wireless WIFI Adapter 1,300 Mbit/s Long Range Do
  • USB 3.0 interface enables 1300 Mbps total wireless throughput
  • Dual-band 2.4 GHz and 5.0 GHz operation fits most networks
  • External 5 dBi dual antennas extend indoor range to 100 metres
  • RTL8812BU chip supports IEEE 802.11 ac/a/n/g/b standards
  • MU-MIMO capability increases capacity with compatible routers

USB 3.0 dual-band Wi-Fi adapter

The Perfect Part RTL8812BU connects a desktop or laptop to 2.4 GHz and 5.0 GHz networks through a USB 3.0 port. It targets users who need a simple wireless upgrade without opening the computer case. The external 5 dBi dual antennas aim to improve reception in rooms farther from the router. Windows and Mac operating systems are supported.

Throughput headroom and practical limits

The adapter negotiates up to 400 Mbps on 802.11n and 867 Mbps on 802.11ac, giving a combined label rate of 1300 Mbps. Real-world throughput will be lower and depends on router capabilities, channel congestion and distance. At the quoted indoor maximum of 100 metres the link will fall back to the 11 Mbps or 54 Mbps legacy rates. Buyers who need consistent multi-gigabit speeds should consider a wired connection.

Thermals noise and power draw

The device draws power directly from the USB 3.0 port and has no moving parts, so it runs silently. The ABS plastic housing stays warm but not hot during sustained transfers. No external power supply is required. Users with only USB 2.0 ports will see reduced throughput because the bus cannot sustain the higher PHY rates.

How it compares

Measured against everything we stock in Wi-Fi Cards & USB Adapters, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 85% of the 1,565 comparable items (median $18.99).

Specifications

Product
Brand nameThe Perfect Part
Model nameRTL8812BU
Part numberRTL8812BU
Product typeAdapter
Product colorBlack
Connectivity
Antenna configurationExternal 5dBi Dual Antenna
Ports & slots
Interface typeUSB 3.0
In the box
In the box1 × USB 3.0 Wireless WIFI Adapter 1,300 Mbit/s Long Range Dongle Dual Band 5 GHz Network (as described)

Questions about this item

Will the RTL8812BU adapter work with my older laptop that only has USB 2.0 ports?

The adapter uses a USB 3.0 interface and is backward compatible with USB 2.0 ports, though the maximum wireless throughput of 1300 Mbps will be limited by the slower bus speed.

How can I verify the adapter is achieving dual-band speeds after installation?

Check the active connection properties in your OS network settings; it should show a link speed up to 867 Mbps on the 5.0 GHz band or 400 Mbps on the 2.4 GHz band when connected to a compatible router.

Does the package include a driver disc or do I need to download software separately?

The box contains only the USB 3.0 Wireless Adapter with dual 5dBi antennas; drivers for Windows and Mac must be downloaded from the chipset vendor's support site.

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