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Green rectangular PCB adapter board with four USB ports, RJ45 Ethernet jack and 40-pin GPIO header

WaveShare

WaveShare B/3B Zero to Pi 3B/3B+ data adapter

SKU CH-7AGC-B4T6D MPN B/3B

Lets a Raspberry Pi Zero or Zero 2 W mimic a Pi 3B/3B+ with four USB ports and 10/100 Ethernet

  • Replicates Pi 3B/3B+ form factor using a Raspberry Pi Zero or Zero 2 W
  • Four USB 2.0 ports at 2.0 speed connect keyboards, mice and storage
  • RTL8152B Ethernet chip adds a 10/100 M RJ45 network link
  • GPIO header matches Pi 3B height for direct HAT compatibility
  • Zero or Zero 2 W required but not included with the adapter

Form Factor & HAT Clearance

This adapter board converts a Raspberry Pi Zero or Zero 2 W into the physical footprint of a Pi 3B or 3B+. It matches the GPIO header height and USB-Ethernet layout of the larger board so existing HATs and enclosures designed for the 3B series fit without modification. The Zero module itself is not included and must be supplied separately.

Target Users & Limitations

Makers who already own a Pi Zero or Zero 2 W and need mechanical compatibility with 3B-series HATs or cases will benefit. Builders who require Power over Ethernet cannot use this adapter because the onboard RJ45 port does not support PoE. Projects that need the full processing power or memory of a genuine Pi 3B+ should look elsewhere.

Onboard Connectivity Specs

The board provides four USB ports operating at USB 2.0 and 1.1 speeds. A single RTL8152B Ethernet controller delivers one RJ45 jack with 10/100 M adaptive throughput. No PoE capability is present.

How it compares

Measured against everything we stock in Interface & Card Adapters, at today’s prices. Recalculated every night.

Price $34.99
Pricier than about 80% of the 353 comparable items (median $21.99).

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Specifications

Processor
ProcessorOther

Questions about this item

Should I pick this adapter for a Raspberry Pi Zero W or a Raspberry Pi Zero 2 W?

Both boards are supported; the adapter lets you use either a Raspberry Pi Zero W or a Raspberry Pi Zero 2 W to replicate the Pi 3B/3B+ form factor.

What does the onboard RTL8152B Ethernet chip actually deliver in a real build?

It provides one RJ45 port with 10/100 M adaptive speeds, but it does not support PoE.

How do the USB ports and GPIO header work with existing Pi 3B HATs?

Four USB ports run at USB 2.0/1.1 rates, and the GPIO header matches the Pi 3B height so 3B-series HATs connect directly.

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