DEEPCOOL PL550D 550W Bronze ATX 3.0 80+ Non Modular Power Supply

The Deepcool PL550D is a 550-watt, non-modular power supply built to Intel's ATX12V V3.0 standard, making it a forward-compatible choice for mid-range desktop builds that demand both reliability and readiness for current-generation GPUs. The unit ships with a native PCIe 5.0 (12VHPWR) connector rated up to 300 W, eliminating the need for adapter cables when pairing with compatible graphics cards. Compliance with ATX 3.0 means the PL550D can deliver twice the total system power for up to 0.1 ms, absorbing transient power spikes that can occur during intense workloads without tripping protection circuits. Cooling is handled by a 120 mm hydro-bearing (HYB) fan, which uses a fluid-dynamic sleeve design to operate quietly while maintaining efficient airflow across the internal components. The PL-D platform uses a dual-transistor forward topology combined with active Power Factor Correction (PFC) and a DC-to-DC conversion stage, which helps maintain tight voltage regulation across all output rails under varying load conditions. High-grade electrolytic capacitors allow the PL550D to sustain a hold-up time of at least 16 ms at full load (100%), providing a brief but meaningful buffer during brief power interruptions. The unit is rated for continuous operation between 0 °C and 40 °C and can function at altitudes up to 5,000 metres above sea level. An 80 PLUS Bronze certification confirms at least 85% efficiency at 50% load, meaning less energy is wasted as heat during typical desktop use. Eight independent protection mechanisms are included: Over Power Protection (OPP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), Over Temperature Protection (OTP), Over Current Protection (OCP), Under Voltage Protection (UVP), Surge & Inrush Protection (SIP), and No-Load Operation (NLO). Verified Specifications: - Model: PL550D | P/N: R-PL550D-FC0B-IN-V2 - Form Factor: ATX12V V3.0 (ATX 3.0) - Rated Output: 550 W - Efficiency: ≥85% at 50% load (80 PLUS Bronze certified) - Fan: 120 mm, Hydro Bearing (HYB) - Topology: Active PFC + DC-to-DC - Hold-Up Time: ≥16 ms at 100% load - Power Good Signal: 100–150 ms - MTBF: 100,000 hours - Dimensions: 150 × 140 × 86 mm (W × L × H) - Operating Temperature: 0–40 °C - Certifications: CE, FCC, CCC, RCM, EAC, CAN ICES-003(B)/NMB-003(B), TUV-RH - Protection: OPP, OVP, SCP, OTP, OCP, UVP, SIP, NLO - Warranty: 5 years