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Green rectangular PCB with 40-pin header and two expansion sockets

Micro Connectors

Micro Connectors RAS-GP02 40-pin GPIO 1-to-2 expansion board

SKU CH-W0E5-8NV49 MPN RAS-GP02

Splits a Raspberry Pi 40-pin GPIO header into two parallel ports on a compact 52 × 20.3 × 16.5 mm board with pin-1 marked

  • FeaturesRaspberry Pi 40-pin GPIO 1 to 2 expansion Compatible with al
  • Expands one 40-pin header into two for more HATs
  • Works with every Raspberry Pi model from B+ to Zero W
  • Pin-one marked by square pad for quick orientation
  • Compact 52 x 20.3 x 16.5 mm board fits tight cases
  • Brand-new condition, first listed by maker in 2025

GPIO 1-to-2 Expansion Board

The Micro Connectors RAS-GP02 is a compact 40-pin GPIO 1-to-2 expansion board built for Raspberry Pi single-board computers. It splits one header into two parallel headers, letting makers attach two HATs or prototype circuits simultaneously. Pin 1 is marked with a square pad on the PCB for easy orientation. The board measures 52 x 20.3 x 16.5mm.

Suits dual-HAT projects not stacked headers

This board suits builders who need two add-on boards running side-by-side on a single Pi without stacking them vertically. It is not for users who require a right-angle or stacking header to save horizontal space, nor for projects that need electrical isolation between the two connected peripherals.

40-pin GPIO 1-to-2 split

The single specification that decides fit is the 40-pin GPIO 1-to-2 split, which duplicates every signal from the Pi header onto two female headers. Buyers must verify that both target HATs can share the same bus lines without address conflicts, as the board provides no switching or buffering.

Points forts

  • Expands one 40-pin header into two for more HATs
  • Works with every Raspberry Pi model from B+ to Zero W
  • Pin-one marked by square pad for quick orientation
  • Compact 52 x 20.3 x 16.5 mm board fits tight cases
  • Brand-new condition, first listed by maker in 2025

Caractéristiques

BrandMicro Connectors
ModelRAS-GP02
FeaturesRaspberry Pi 40-pin GPIO 1 to 2 expansion
Compatible with all Raspberry Pi models
Compact size
#1-pin is marked with square shape pad on PCB
Compatible version: Raspberry Pi 1 Model B+, Pi 2 Model B, Pi 3 Model B/B+, Pi Zero/Zero W
Dimensions: 52 x 20.3 x 16.5mm
Poids d’expédition0.02 kg
Dimensions du colis61 × 53 × 28 mm

Questions sur cet article

How much power does the 40-pin GPIO expansion board draw when the Raspberry Pi runs continuously?

The board is a passive PCB with no active components, so it adds no measurable power draw; the Pi supplies only the current your attached HATs require.

What must I already own to use this 1-to-2 GPIO splitter?

You need a Raspberry Pi with a 40-pin header — any model from the Pi 1 Model B+ through Pi 3 B+ and Zero — plus up to two HATs or daughter boards you want to connect simultaneously.

Will the expansion board fit alongside a Pi 3 Model B inside the same case?

The board measures 52 x 20.3 x 16.5 mm, so it adds roughly 16.5 mm of height above the GPIO header; verify your case has that clearance before closing the lid.

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