The Chieftec GPF-400P is a compact power supply from the Smart Series, specifically designed for slim systems requiring the TFX form factor. It delivers a total power of 400W with an efficiency rating above 85%, utilizing Active PFC to ensure stable energy conversion across a wide input voltage range of 100-240 VAC. Its silver and grey chassis measures 175 x 85 x 65 mm and weighs 1.07 kg, making it easy to integrate into small-form-factor builds. To keep the internal components cool, it features a temperature-controlled 80 mm fan that adjusts its speed based on the thermal load. For safety, the unit includes a comprehensive suite of protections, such as OVP, SCP, and UVP, to guard your hardware against electrical irregularities. Connecting your components is straightforward with a 24-pin ATX power connector, an 8-pin ATX/EPS 12V lead, and four SATA ports for your drives. It also provides two MOLEX and one floppy connector, offering flexibility for older peripherals. This PSU is a reliable choice for users assembling a compact home office PC or a small media center where space is limited but steady power delivery is essential.