DEEPCOOL Gamer Storm PN850D 850W 80+ Gold Non Modular ATX 3.1 Power Supply

The DeepCool Gamer Storm PN850D is an 850-watt ATX 3.1-compliant power supply designed to meet the demands of modern and next-generation gaming PC builds. Built with a non-modular cable configuration, it delivers a fixed harness of sleeved cables straight out of the box, providing a clean, premium look without the added complexity of a modular system. At its core, the PN850D uses a full-bridge LLC resonant converter combined with a synchronous rectifier and DC-to-DC topology. This engineering approach contributes to a hold-up time of 16 milliseconds or greater under 80% load conditions — an important metric for system stability during brief power interruptions. Active Power Factor Correction (PFC) and a premium main electrolytic capacitor further reinforce clean, consistent power delivery to every component. One of the standout features of the PN850D is its ATX 3.1 and PCI-E 5.1 compatibility. It ships with a 12V-2x6 cable constructed from high-grade 16AWG copper-core conductors rated to withstand temperatures up to 105°C, and is capable of supplying up to 600W to a single high-performance GPU. The included three PCIe 6+2 pin connectors offer flexibility for multi-GPU or high-demand single-card configurations. Thermal management is handled by a 120mm dynamic hydro bearing fan, which automatically adjusts its rotational speed in response to the PSU's internal temperature. This results in near-silent operation during light workloads and ramps up cooling capacity only when the system is under heavy load. The PN850D carries the 80 Plus Gold certification, meaning it achieves at least 87% efficiency at 20% load, 90% at 50% load, and 87% at 100% load — reducing wasted heat and lowering operating costs over time. DeepCool backs this unit with a 10-year warranty, reflecting confidence in the product's long-term reliability. — Verified Specifications — Wattage: 850W | Standard: ATX 3.1 | Efficiency: 80 Plus Gold | Modular: Non-Modular | Fan: 120mm Hydro Bearing | PCIe Connector: 3x 6+2 Pin | 12V-2x6 Cable: Yes (16AWG, 105°C rated, up to 600W) | SATA Connectors: 2 | Peripheral (4-pin): 1 | Hold-up Time: ≥16ms at 80% load | Color: Black | Warranty: 10 Years | Series: PN-D | SKU: R-PN850D-FC0B-JGIN-V2