> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Stacking M2.5 Hardware Kit for STEMMA QT and RP2040 Trinkey

**Type:** Product page · **SKU:** ADA5248 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/stacking-m2-5-hardware-kit-for-stemma-qt-and-rp2040-trinkey.html ([markdown](https://core-electronics.com.au/stacking-m2-5-hardware-kit-for-stemma-qt-and-rp2040-trinkey.html.md))

Here is the perfect hardware kit to make a RP2040 QT Trinkey into any kind of USB-connected smart sensor with a QT-sensor-sandwich! You can assemble...

## Pricing

- **Price:** $2.70 (inc GST) — $2.45 AUD, exc GST
- **Quantity discounts:** 10+ $2.38 (exc GST) · 50+ $2.33 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 28 and Oct 02.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA5248:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA5248:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

Here is the perfect hardware kit to make a [RP2040 QT Trinkey](https://core-electronics.com.au/adafruit-trinkey-qt2040-rp2040-usb-key-with-stemma-qt.html) into any kind of USB-connected smart sensor with a QT-sensor-sandwich! You can assemble it with just a plain Phillips screwdriver. Takes less than a minute to bolt on your favorite STEMMA QT or Qwiic board on top. And best of all, its stackable, so you could have multiple boards sandwiched on top of each other.

**Includes:**

- 4 x black nylon M2.5 M-F hex standoff
- 4 x black nylon M2.5 hex nuts
- 4 x black nylon M2.5 screw 4mm tall

**Note:** Neither [Trinkey QT2040](https://core-electronics.com.au/adafruit-trinkey-qt2040-rp2040-usb-key-with-stemma-qt.html) nor [sensor](https://core-electronics.com.au/#) are included, just the nylon standoffs, screws, and nuts. You'll also definitely want a [shorty 50mm Stemma QT cable](https://core-electronics.com.au/stemma-qt-qwiic-jst-sh-4-pin-cable-50mm-long.html).

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_3816.jpg)