J1772 is the plug standard for Level 1 or Level 2 AC-powered EV charging. Combined Charging Standard (CCS) combines a J1772 connector with a two-pin connector for DC fast charging. The CCS Combo 1 (CCS1) uses the U.S. plug standard for its AC connection, and CCS Combo 2 (CCS2) uses the EU style of AC plug. CCS1 and CCS2 connectors are larger and bulkier than the NACS connector. CHAdeMO was the original DC rapid-charging standard and is still in use by the Nissan Leaf and a handful of other models but is largely being phased out by manufacturers and EV charging network operators