The Chieftec GPB-400S is a 400 W power supply from the iARENA range for desktop computers. It is specified for 230 V AC input and efficiency above 85%.
A 120 mm fan and 140 mm length describe its physical format. The BULK/OEM configuration has one 24-pin connector, five SATA, three Molex, one 8-pin PCIe (6+2) and one 8-pin EPS (4+4), supporting builds that use these connections.
It uses a single +12 V rail and active PFC with a power factor of 0.9. The series comes in bulk packaging, which excludes the power cord and accessories.