This is a short review the Supicon / Chargerman CCS DC fast charger adapter for Tesla cars. Both worked without issue at my local DC fast(ish) charger.

There is no obvious difference between the performance of Supicon's CCS adapter and that of Tesla's official CCS adapter and it's nearly $100 cheaper!

Link to Supicon / Chargerman (same product, has multiple names):
https://www.amazon.com/dp/B0BF4LCXQP