The CSD-R1 is a compact and powerful DC fast EV charger, delivering 20kW, 30kW, or 40kW of output power with 150V–1000V DC voltage support. Designed for both commercial and fleet applications, this three-phase 400VAC charger supports multiple connector options including CCS1, CCS2, GBT, and CHAdeMO.Equipped with a 4.3-inch color touchscreen, RFID card reader, LED status indicators, and intelligent backend communication via Ethernet, Wi-Fi, Bluetooth, or 4G, it ensures easy operation and remote management. The charger also supports OCPP 1.6J protocol and includes an embedded energy meter with 1% accuracy for reliable billing and monitoring.Built for outdoor use, the CSD-R1 features IP54 protection, IK10 impact resistance, fan cooling, and a robust enclosure. It complies with IEC61851-1, IEC62196-1/2, and SAE J1772 standards, making it ideal for urban charging stations, office parking lots, and commercial EV infrastructure.