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| Basic Information | ||
| PFC | Active PFC+DC to DC | |
| Efficiency | 80 Plus Bronze (≥85% at 50% loading) | |
| Protection | OPP, OVP, SCP, OTP, OCP, UVP, SIP, NLO | |
| Output Power | 550 Watt | |
| Certification | CE, FCC, CCC, RCM, EAC, CAN ICES-003(B), NMB-003(B), TUV-RH | |
| Fans | 120mm Hydro Bearing fan | |
| Others | Electrolytic Capacitors | |
| Connectors | ||
| Main Power | Main Power Connector (20+4)Pin x 1 | |
| CPU | CPU(4+4)Pin x 1 | |
| PCI-E | PCI-E(6+2)Pin x 1 PCI-E(6+2)Pin x 2 | |
| SATA | SATA x 4 + 4Pin Peripheral x 1 | |
| Molex | 12VHPWR(16Pin) x 1 | |
| Physical Specification | ||
| Dimensions | 150×140×86mm | |
| Warrnty Information | ||
| Warranty | 5-year warranty | |
The DeepCool PL550D is a 550W ATX power supply designed to deliver dependable power for everyday computing and gaming-ready PC builds. With an 80 Plus Bronze efficiency rating, it helps reduce wasted energy and supports more efficient operation under typical loads (rated efficiency is ≥85% at 50% loading). This makes the PL550D a practical choice when you want a reliable PSU that balances performance, cooling, and power efficiency—especially for systems that run for long hours.
To maintain stable temperatures, the PL550D uses a 120mm Hydro Bearing fan. A larger 120mm fan generally supports quieter airflow and helps keep internal components cooler during sustained usage. The unit also features electrolytic capacitors, which are commonly used in power supplies for their ability to support smooth power delivery and stable regulation. For users who want a PSU that can handle daily workloads without constant thermal stress, this combination is built for consistent operation.
This model is rated for 550 Watt output power, making it suitable for a wide range of mainstream desktop configurations. It also includes Active PFC + DC to DC topology, which improves power factor handling and supports more efficient, stable voltage regulation for modern PC components. The PSU provides a power good signal in the range of 100–150ms, helping ensure your system components receive power at the right time during startup.
The DeepCool PL550D is equipped with comprehensive protection to help safeguard your PC hardware. It supports multiple safeguards including OPP (Over Power Protection), OVP (Over Voltage Protection), SCP (Short Circuit Protection), OTP (Over Temperature Protection), OCP (Over Current Protection), UVP (Under Voltage Protection), SIP, and NLO. These protections are especially valuable for users who experience unstable power conditions or who frequently power-cycle systems during troubleshooting, upgrades, or maintenance.
With a hold-up time of ≥16ms, the PL550D is designed to maintain output stability during brief power interruptions—helpful for reducing the chance of sudden shutdowns. The PSU operates within a temperature range of 0–40℃, supporting stable performance in typical indoor environments where desktop PCs are commonly used.
The unit’s dimensions are 150×140×86mm, making it a compact ATX power supply option for many standard desktop cases. For peace of mind, it includes a 5-year warranty, which is a strong indicator of long-term support for users planning to keep their system running for years.
The DeepCool PL550D complies with multiple regulatory standards including CE, FCC, CCC, RCM, EAC, CAN ICES-003(B), NMB-003(B), and TUV-RH. This compliance helps ensure the PSU meets recognized safety and performance requirements, supporting safer installation and operation.
If you’re building a reliable desktop, upgrading an existing system, or replacing a PSU with a model that offers 80 Plus Bronze efficiency, a 120mm Hydro Bearing fan, and multi-layer protection, the DeepCool PL550D is a solid fit. It’s especially suitable for users who want efficient power usage and stable operation without paying for higher-tier efficiency levels—while still benefiting from robust safety features and a manufacturer-backed warranty.
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