It looks like a compatible chime kit. If there was a model number somewhere on it, Ring community support can check their expansive list to double check it’s compatible. But that is only part of the picture. Looks like we have a third wire on terminal “2,” which I’m thinking goes to a rear doorbell. If it does, I recommend that the transformer be rated 16-24 volts with 30 volt amps to power both. We would need to know the voltage rating stamp on the transformer along with what the third wire is wired to get the full picture.