What is Tesla's CSS charging adapter and who needs it?

Tesla now sells a CCS charging adapter in the United States. What exactly is it and who is it for? We have the answers here

CCS to Tesla Charger Adapter for Tesla Model 3, Y, S, X - DC Charge Adapter Rated up to 250kw, rated for All CCS Charging, Upgrade CCS Before Using Adapter, Fast

More Automakers Are Adopting Tesla's EV Charger. But the Competition Won't Go Quietly - CNET

poll) Should BMW Switch to Tesla's NACS Charging Plugs?

CCS Charger Adapter for Tesla (Black)

Modifying Tesla SAE J1772 adapter to fit SAE Combo

EVs Are Adopting the Tesla Charging Standard. Here's When It'll Actually Happen - CNET

What's the status of EV charging connector standards?

Which css adapter is best? : r/TeslaLounge

Tesla CCS Adapter: Everything you need to know! (USA)

Rexing CCS to Tesla Charging Adapter

Tesla to add CCS connector to Superchargers in the US