In Acer Aspire ES1-572 laptop, this one fits. It attaches well but it has loose connections and moves around if you shake it. However, it doesn't come off easily.
The voltage it provides is 20V, not 19V as it is written, meaning the same as the source provides. Measured with a multimeter at 20.3V.
For those who don't know, it serves to charge the laptop with a regular charger so that it requests the appropriate voltage from it. The same applies if you want to connect it to a power bank.
In order for the laptop to work and charge simultaneously, it must be connected to at least 65W via a type-c port (20V-3.25A) with PD (power delivery). It will be difficult to work with USB-A, I have only managed it with a Xiaomi 120W.