CCS and CHAdeMO are both DC fast-charging connector standards, but they come from different regions and have taken very different paths in North America.
CCS (Combined Charging System)
CCS adds two large DC pins beneath a standard J1772 (North America) or Type 2 (Europe) head, so one physical connector handles both AC and DC charging. It became the dominant fast-charging standard for most non-Tesla EVs sold in the US and Europe through the early 2020s.
CHAdeMO
Developed in Japan, CHAdeMO uses a distinct round connector shape and was the fast-charging standard for early EVs like the original Nissan Leaf. It has been phased out of new vehicle production in most markets in favor of CCS and now NACS.
What this means at a station
A station listing both connector types is common at older fast-charging locations built to serve the full range of vehicles on the road, from newer CCS/NACS cars to older CHAdeMO holdouts.
Is CHAdeMO still being installed on new stations?
Rarely — most networks have shifted new installations toward CCS and NACS, though existing CHAdeMO plugs remain in service to support older vehicles already on the road.