This is an open box item. 80 Plus Gold Certified: 850W power supply delivers 90% or higher efficiency under typical loads. Achieve power savings and reduced heat, ensuring peak performance while cutting costs. ATX 3.0 & PCIe 5.0 Ready: It allows a remarkable 200% total power excursion and 300% GPU power excursion, ensuring full compatibility with high-performance NVIDIA 40 series graphics cards. The package includes a 12VHPWR Cable for hassle-free installation and future upgrades. 100% Japanese Capacitors: Crafted with premium Japanese capacitors for long-lasting reliability and stable output with 5V/3.3V DC-DC. Offering peace of mind with a 5-year warranty. ARGB SYNC: Elevate your rig's style with ARGB SYNC, seamlessly integrating vibrant lighting effects with the A-RGB software of most mainstream motherboards. Whisper-Quiet Fan: The ATX power supply is equipped with a 140mm ultra-quiet fan that maintains excellent heat dissipation without producing disturbing noise. Fully Modular: 850 watt power supply features a fully modular design that optimizes airflow and minimizes clutter. Enjoy seamless organization.