zdyCGTime DC2.5x0.7mm Male to DC5.5x2.1mm Female Adapter - 90 Degree Angle, 5V Charging Cable Connector for Tablet, Electronic Dog, Access Control - 2 Pack Review

Purchased 6.0 x 4.3 male to 5.5 x 2.1 female for use with two 12v sockets of the Jackery Explorer 500. Fits in the socket but too loose to make a good connection I had to hold on to the plug to even make the connection. Obviously not exactly 4.3mm inside. When I come back I won't buy again.

Get this with the power cord hanging over the table behind the laptop. Otherwise you need a way to hold a small voltage on the 3x1.1 connector as it doesn't take the small power connector in a laptop very well (the power will run out on a small bump).

Buy this if you have a power cord dangling from your desk behind your laptop. Otherwise you need a way to hold a small voltage on the 3x1.1 connector as it doesn't take the small power connector in a laptop very well (the power will run out on a small bump).

This adapter was just the thing to replace a lost 42V charger with a 36V Li-Ion battery, but this adapter came to the rescue. The charger works great with this adapter. (Sold with Tangspower 36V charger, 42V 2A output)

Seems well made and works well in my application. Check the plug and socket sizes to make sure they match your plug size requirements. It's great when using a rectangular adapter can reduce stress on the power cord - bending the wire coming out of the plug puts enough stress on both the conductors in the cord and the plastic insulation, which can fail prematurely over time. The plastic insulation of electric cables is particularly prone to "drying out" [especially small cables] and cracking…