Female to female adapter / cable joiner. This adapter will allow the Voltaic Systems V72 power leads to be joined together ; making them longer.
YZXstudio USB 3.0 Power Monitor Voltage and Current Meter
Switched USB Female Type A to USB Male Type A Extension Cable
Gecko Go Turbo DUO USB 4.8A Car Charger with 2 x 2.4A USB Ports
Voltaic Y M3511 Splitter