Review on 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 by Alex Solano

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.