> **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

# 1.1-1.3mm/3.5-3.8mm Socket to 2.1mm/5.5mm Plug Adapter for DC Barrel Jack

**Type:** Product page · **SKU:** ADA2788 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/3-5-1-3mm-to-5-5-2-1mm-dc-jack-adapter-cable.html ([markdown](https://core-electronics.com.au/3-5-1-3mm-to-5-5-2-1mm-dc-jack-adapter-cable.html.md))

This convenient 3.8mm/1.3mm or 3.5mm/1.1mm or 1.3mm DC to 2.1mm DC adapter cable lets you plug one of Adafruit's solar panels into Adafruit's optimized Solar Lithium Ion/Polymer...

## Pricing

- **Price:** $3.30 (inc GST) — $3.00 AUD, exc GST
- **Quantity discounts:** 10+ $2.91 (exc GST) · 50+ $2.85 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA2788:1` (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/ADA2788:1.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

This convenient **3.8mm/1.3mm or 3.5mm/1.1mm or 1.3mm DC to 2.1mm DC adapter cable** lets you plug one of Adafruit's [solar panels](https://core-electronics.com.au/large-6v-3-4w-solar-panel-3-4-watt.html) into [Adafruit's optimized Solar Lithium Ion/Polymer charger](https://core-electronics.com.au/usb-dc-solar-lithium-ion-polymer-charger-v2.html)! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1 or 1.3mm ID (3.5-3.8mm OD) DC jack! The adapter has little springy parts inside so it can be used with 3.5mm to 3.8mm OD plugs.

![//www.youtube.com/embed/BpEgPFR5dtY
?start=162](https://core-electronics.com.au/attachments/localcontent/hqdefault_47514621758.jpg)

## Technical Details

- Cable Length (end to end): ~165mm / 6.5"

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/2/7/2788-00.jpg)