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Green rectangular adapter board with four USB ports, Ethernet jack, headphone socket and extended GPIO header

WaveShare

WaveShare B/3B Raspberry Pi Zero 2W to Pi 3B/3B+ Adapter

SKU CH-6HYY-AT66A MPN B/3B

Adapter board lets a Raspberry Pi Zero 2 W mimic a Pi 3B/3B+ form factor with four USB 2.0 ports, 10/100 Ethernet and HAT compatibility

  • Replaces a Pi 3B/3B+ using a Zero 2 W for lower cost
  • Pogo-pin connection lets you attach the Zero 2 W quickly without soldering
  • Four USB 2.0 ports and 10/100 Ethernet via RTL8152B chip
  • Headphone jack and speaker header provide audio output options
  • Fits Pi 3B-series HATs though GPIO sits higher than on the original board

Zero 2 W to Pi 3B Adapter

This adapter board lets a Raspberry Pi Zero 2 W mimic the physical footprint and port layout of a Pi 3B or 3B+. It provides four USB 2.0 ports, a 10/100 Ethernet jack via an RTL8152B chip, a headphone jack extended from USB, and a speaker header. The Zero 2 W itself is not included and attaches using pogo pins.

Makers needing Pi 3B HAT compatibility

Builders who want to use existing Pi 3B-series HATs with a Zero 2 W will find the GPIO header aligned for that purpose, though it sits higher than on a native Pi 3B. The board does not support Power over Ethernet and is designed only for the Zero 2 W; earlier Zero models will not fit or function.

Four USB ports and 100 Mbit Ethernet

The four USB 2.0 ports handle keyboards, mice, and typical peripherals without issue. The single 10/100 Ethernet port is adequate for light network tasks but saturates well below gigabit speeds. GPIO clearance is tighter because the header sits higher, so some tall HATs may not seat fully.

How it compares

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

Price $45.99
Pricier than about 87% of the 1,754 comparable items (median $18.99).

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Specifications

Processor
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Questions about this item

What Raspberry Pi module do I need to already own for this adapter to work?

You need a Raspberry Pi Zero 2 W; the adapter only supports that specific module and is not compatible with other Zero series boards.

Will my existing Pi 3B or 3B+ HATs fit on this adapter once the Zero 2 W is installed?

Yes, the adapter is compatible with Pi 3B series HATs, though the GPIO header sits higher than on a native Pi 3B or 3B+.

How can I confirm the onboard Ethernet is functioning after I attach the Zero 2 W?

Connect a network cable to the RJ45 port; the RTL8152B chip provides a 10/100 M adaptive link, so a blinking LED indicates the port is active.

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