CRATOS LITE 1000W / 850W / 650W, unique cover design offering strong stability and efficient ventilation for optimal cooling, smart start-stop fan, PCIe Gen 5.1, Intel ATX 3.1 standard. CRATOS SERIES 1200W / 1000W / 850W, smart start-stop fan, Intel ATX 3.1 standard, PCIe Gen 5.1 Ready (12V-2×6 connector 600W), Japanese capacitors offer high-temperature resistance.