DEEPCOOL Gamer Storm PN850M 850W 80 Plus Gold Fully Modular ATX 3.1 Power Supply

The DeepCool Gamer Storm PN850M is an 850-watt fully modular power supply built on the ATX12V v3.1 standard, making it a solid choice for modern PC builds that demand both reliability and cable management flexibility. Its fully modular design means every cable — including the ATX motherboard connector — can be detached when not in use, resulting in a tidier chassis interior and improved airflow around other components. Power efficiency is rated at 80 Plus Gold, delivering at least 90% efficiency under typical 50% load conditions. The PN850M is also rated Gold by Cybenetics, providing an independent third-party confirmation of its efficiency credentials. This dual certification helps reduce wasted heat output and keeps long-term electricity costs in check. For next-generation GPU compatibility, the PN850M is equipped with a 12V-2x6 (PCIe 5.1) cable constructed from 16AWG copper-core embossed wire, capable of delivering up to 600W to a single graphics card. Three additional PCIe 6+2 pin connectors, four SATA connectors, and one 4-pin peripheral connector round out the connectivity options. Thermal management is handled by a 120mm fluid dynamic bearing (FDB) fan that adjusts its rotational speed in response to actual PSU load, reducing noise during lighter workloads. The internal topology combines active power factor correction (PFC), a full-bridge SRC LLC circuit, and a DC-to-DC conversion stage — a configuration associated with tight voltage regulation and stable delivery across all rails. Japanese bulk electrolytic capacitors rated for operation across the full temperature range contribute to the unit's stated MTBF of 100,000 hours. All cables ship pre-sleeved from the factory. A comprehensive protection suite guards connected components against over-power, over-voltage, short-circuit, over-temperature, over-current, under-voltage, surge, and no-load conditions. Verified Specifications: - Wattage: 850W - Form Factor: ATX12V v3.1 - Efficiency Rating: 80 Plus Gold; Cybenetics Gold - Modular: Fully Modular - Fan: 120mm FDB - Topology: Active PFC + Full Bridge SRC LLC + DC-to-DC - Capacitors: Japanese bulk electrolytic - Hold-Up Time: ≥16ms at 80% load - Power Good Signal: 100–150ms - Operating Temperature: 0–40°C - MTBF: 100,000 hours - Protection: OPP, OVP, SCP, OTP, OCP, UVP, SIP, NLO - PCIe 12V-2x6 (600W capable): 1 - PCIe 6+2 Pin: 3 - SATA: 4 - 4-Pin Peripheral: 1 - Dimensions (W×L×H): 150×140×86mm - Warranty: 10 Years - Series: PN-M