Your supply has a 1.3mm plug, your device wants 2.1mm. You don't need to swap out the whole transformer for that one mismatch. This adaptor slots in between and gets you powered up. Plug it in, connect your device, done
| brand | JAYCAR |
| category | ELECTRONICS & COMPONENTS |
| subcategory | CABLES & CONNECTORS |
| input_connector | 1.3mm DC plug |
| output_connector | 2.1mm DC socket |
| type | DC power adaptor |