DEEPCOOL Gamer Storm PN1200M 1200W 80 Plus Gold Fully Modular ATX 3.1 Power Supply

The DEEPCOOL Gamer Storm PN1200M is a 1200-watt fully modular ATX 3.1 power supply designed for high-performance gaming and workstation builds. Certified 80 Plus Gold and independently rated Gold by Cybenetics, the PN1200M delivers strong efficiency under the kinds of sustained loads that demanding GPUs and CPUs generate day-to-day. The unit is built around a main Japanese electrolytic capacitor, active power factor correction (PFC), a half-bridge SRC LLC topology, and a DC-to-DC conversion stage. Together these components keep hold-up time at or above 16 ms at 80% load—well above the ATX specification minimum—so your system remains stable during brief grid fluctuations. The ATX 3.1 platform compliance also means the PSU can deliver twice its rated continuous power for up to 0.1 ms, comfortably handling the transient spikes that modern graphics cards are known to draw. For GPU connectivity, the PN1200M ships with a 12V-2x6 (PCIe 5.1) cable built from 16AWG copper-core wire rated to 105 °C, capable of supplying up to 600 W to a single graphics card. Additional connectivity includes three 6+2-pin PCIe connectors, eight SATA connectors, and two 4-pin peripheral connectors, giving builders plenty of flexibility for multi-drive and accessory-heavy configurations. Cable management is simplified by the fully modular design: connect only the cables your build actually needs, reducing clutter and improving airflow. All cables are individually sleeved from the factory for a clean, premium appearance inside windowed cases. Cooling is handled by a 135 mm Fluid Dynamic Bearing (FDB) fan that adjusts speed in response to real-time thermal conditions, running quietly under light loads and ramping up only when the unit requires additional airflow. The chassis measures 150 × 150 × 86 mm, making it compatible with the vast majority of mid-tower and full-tower ATX cases. The unit is rated to operate at altitudes up to 5,000 metres above sea level, indicating a wide operating envelope for the internal components. Verifiable Specifications: - Wattage: 1200 W - Efficiency Certification: 80 Plus Gold; Cybenetics Gold - ATX Standard: ATX 3.1 - Modular: Fully modular - Fan: 135 mm FDB (Fluid Dynamic Bearing) - 12V-2x6 (PCIe 5.1) cable: 1 × 600 W, 16AWG, 105 °C-rated - PCIe 6+2-pin connectors: 3 - SATA connectors: 8 - 4-pin peripheral connectors: 2 - Hold-up time: ≥ 16 ms at 80% load - Capacitors: Japanese electrolytic (main bulk cap) - Topology: Active PFC + Half-bridge SRC LLC + DC-to-DC - Dimensions: 150 × 150 × 86 mm - Colour: Black - Warranty: 10 years limited - Operating altitude: Up to 5,000 m above sea level - Series: PN-M