This adapter board has 4USB port +RJ45 network port which is not the 3 USB port Version(one USB port lost) or No RJ45 Version .
So more functions make the price more expensive.
In addition, The board add "Switch + IC" to switch USB function which more beautiful than the jumper cap Version .

Introduction 

• The Raspberry Pi Zero 2W / Banana Pi M2 Zero to 3B interface adapter with USB hub and RJ45 10/100M port
• Which is designed refer to the Raspberry Pi 3B size
• When the official factory stop to product 3B, Some old project have to change to use 4B.
• At the same time, if you use Banana Pie BPI-M2 Zero, you can also achieve perfect compatibility, and expand USB HUB and Ethernet interface.
• Now we give another option which use a zero to replace 3B with this adapter

Features

• With the unique design , you can make your zero with same USB/HDMI/RJ45 port.
• The height of 20x2 GPIO Pins will not change . You can use GPIO expansion board perfectly

Introduction to interface

• 4x USB ports, compatible with USB2.0/1.1
• 1x RJ45 10/100M port, based on the RTL8152B Ethernet chip
• Micro HDMI to 3B HDMI port
• It can be directly installed to Raspberry Pi Zero/Zero W/Zero WH and Banana Pi M2 Zero, and can be connected to other versions of raspberry pi, banana pie, general-purpose computers or Android phones through usb cable through jumper test.

Working With 3.5inch HDMI LCD

Working With Computer

Working With Mobile

Working With Raspberry Pi ZERO 2

Working With BPI-M2 Zero

Bundle:Zero-to-Pi3-Adapter (A)

• Zero to Pi3 Adapter(A) x1
• Micro USB x1

Bundle:Zero-to-Pi3-Adapter (A) With PI-Zero 2W

• Zero to Pi3 Adapter(A) x1
• Micro USB x1
• Raspberry Pi Zero 2 x1

Bundle:Zero-to-Pi3-Adapter (A) With BPI-M2 Zero

• Zero to Pi3 Adapter(A) x1
• Micro USB x1
• BPI-M2 Zero x1