# 5.5mm/2.1mm DC Barrel Polarity Reversing Cable

**Type:** Product page · **SKU:** ADA5917 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/55mm21mm-dc-barrel-polarity-reversing-cable.html ([markdown](https://core-electronics.com.au/55mm21mm-dc-barrel-polarity-reversing-cable.html.md))

Once in a while we find products that have center negative DC power jacks and they really make us mad because who keeps around both positive and negative...

## Pricing

- **Price:** $7.50 (inc GST) — $6.82 AUD, exc GST
- **Quantity discounts:** 10+ $6.62 (exc GST) · 50+ $6.47 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 3 today, and up to 500 more in 8–12 days.

## Description

Once in a while Adafruit find products that have center *negative* DC power jacks and they really make Adafruit mad because who keeps around both positive and negative polarity versions of every voltage? Now, hopefully [USB Power Delivery](https://core-electronics.com.au/adafruit-usb-type-c-power-delivery-dummy-breakout-i2c-or-fixed-husb238.html) will solve this long term, but till then this **2.1mm DC polarity reversal adapter** will have to do!

Usage is very simple: plug onto any 2.1mm/5.5mm DC plug (or jack!) and what was center-negative will magically swap to center-positive. Now your guitar pedals, label printers, etc will be able to use the common DC power adapters you have on hand.

## Technical Details 

- 24AWG
- ~15cm long

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/C20498-001_datasheet_26864cc4823.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5917-1.jpg)