Two different things.
This is a J1772 inlet to allow you to connect an non-J1772 charging equipment to a J1772 supply, like most commercial car charging stations. Assuming that your charging equipment is compatible with 240V.
This should work fine to let you plug the Enertia charger into a J1772 EVSE. Note that this WILL NOT increase the speed that you charge at, and depending on the station may be quite expensive. Blink charges $0.04/minute for members, you're using approximately $0.0016
of electricity per minute. 2500% markup!
This is portable J1772 EVSE to allow you to connect a J1772 charger to a non-J1772 supply.
You're adding a lot of weight and cost for flexibility; in effect these two things together do the same thing as a $5 IEC C19 cable (connect 120V wall plug to vehicle for charging), but also give you more flexibility to plug into a J1772 supply or later to connect another type of J1772 EV to a 120V or 240V wall supply.