Just to throw ProxGrind into the mix. They make the Proxmark RDv4 not Elechouse etc.
It’s a bit of a mess with manufactures but the Proxmark Easy is a gamble with what you buy. The RDv2 from Elechouse etc are good units but superseded by ProxGrinds RDv4.
Talking of the proxmark RDv4 … we recently released the complete kit: https://cyborg.ksecsolutions.com/product/proxmark-3-rdv4-complete-kit/
So a more in-depth packages compared to the standalone unit: https://cyborg.ksecsolutions.com/product/proxmark-rdv4-kit/