Just for the heck of it I made a list of all my dongles. I tow a trailer with my X, and I visit a lot of friends who let me charge. Maybe I should talk to a shrink ...
Tesla supplied charge adapters
5-15P
14-50P
J1772R
Other adapters
5-15P 5-20R
5-15P TT-30R
TT-30P 14-50R
14-50P TT-30R
6-20P 14-50R
6-30P 14-50R
6-50P 14-50R
10-30P 14-50R
10-50P 14-50R
14-30P 14-50R
14-50P 6-20R
Combos
14-50P to 2 14-50R splitter
2 TT-30P to 14-50R combiner
TT-30P to 3 5-15R splitter
Misc
Chademo
NACS to J1772P
J1772R to 14-50R
Extension cords
14-50
TT-30
5-20
6-2
Tesla supplied charge adapters
5-15P
14-50P
J1772R
Other adapters
5-15P 5-20R
5-15P TT-30R
TT-30P 14-50R
14-50P TT-30R
6-20P 14-50R
6-30P 14-50R
6-50P 14-50R
10-30P 14-50R
10-50P 14-50R
14-30P 14-50R
14-50P 6-20R
Combos
14-50P to 2 14-50R splitter
2 TT-30P to 14-50R combiner
TT-30P to 3 5-15R splitter
Misc
Chademo
NACS to J1772P
J1772R to 14-50R
Extension cords
14-50
TT-30
5-20
6-2