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Green PCB HAT with black terminal blocks and pin header, brass standoffs and screws included

WaveShare

WaveShare RPi GPIO Terminal Block Breakout Board HAT development board

SKU CH-3ENC-MJEQ4

Pre-assembled HAT breaks out Raspberry Pi GPIO to 3.5 mm terminal blocks for 26-16 AWG wires

  • Pre-assembled HAT saves build time
  • 5 mm terminal pitch accepts 26-16 AWG wires
  • 10 mm pin header clears tall components
  • FR-4 dual-layer PCB ensures signal integrity
  • 14 mm brass standoffs give secure mounting

Terminal Block HAT for Raspberry Pi

This WaveShare breakout board converts the Raspberry Pi GPIO header into screw terminals for secure wiring. It comes fully soldered and assembled on a dual-layer FR-4 PCB. The kit includes the module, six M2.5 screws and four 14mm brass standoffs for mounting. A Raspberry Pi board is not included.

Suits makers who need reliable screw connections

The 3.5mm pitch terminal blocks accept solid or stranded wire from 26AWG to 16AWG with a 5mm strip length. Builders who prefer solderless breadboards, high-density headers or wireless interfaces will not find those features here. The board adds a 10mm pin-header height above the Pi, so extremely low-profile cases may not close.

Handles up to twenty GPIO channels

Each of the 20 pins is routed to its own cage-clamp terminal for direct sensor, relay or actuator wiring. The copper cage terminals and steel M2 screws give a firm mechanical grip that resists vibration. Projects requiring more than twenty connections, isolated power rails or on-board signal conditioning will need additional hardware.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 59% of the 1,420 comparable items (median $44.99).

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Specifications

Processor
ProcessorOther

Questions about this item

Which Raspberry Pi boards fit the 20-pin header on this HAT?

The 2 x 20 pin header matches Raspberry Pi 1 Model B+, Pi 2 Model B, Pi 3 Model B, Pi 3 Model B+ and Pi 4 Model B.

Can I keep using 16AWG wires with the 3.5mm terminal blocks?

Yes, the screw terminals accept wire from 26AWG up to 16AWG with a 5mm strip length.

How do I confirm the HAT is seated correctly after mounting?

The 10mm header height and 14mm brass standoffs should leave a visible gap; all 20 pins on each side must be fully inserted.

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