Hanvex HDCQ20W 20ft 2.1mm x 5.5mm DC Plug Power Adapter Extension Cable@$9.99
Hanvex 2.1mm x 5.5mm DC Plug Extension Cord, Male to Female
Cable Specs - 20ft, 20AWG, UL 2464 (UL Component)
Connectors - Female: 2.1mm x 5.5mm jack. Male: 2.1mm x 5.5mm barrel plug.
For DC power - Recommended up to 36 volt, max load 3amp or less
This cable will only work with power adapter with 2.1mm x 5.5mm plug and not other sizes.