Rosewill
Rosewill VNW550 550W 80 PLUS power supply
A 550 W 80 PLUS certified non-modular PSU with a single 12 V rail, two PCIe connectors and six SATA connectors in a compact 140 mm chassis
- Maximum Power550 W
- Fans1 x 120 mm
- PFCActive
- Main Connector24Pin
- +12V RailsSingle
- PCI-Express Connector2 x 6+2-Pin
- 80 PLUS certification delivers up to 80% efficiency
- Single +12V rail with DC-DC design provides stable voltage
- 120 mm FDB fan and vented steel shell optimise thermal control
- Compact 140 mm length fits small-form-factor builds
- Five protection circuits safeguard against over-voltage, overload and short-circuit
550 W 80 PLUS Power Supply
The Rosewill VNW550 delivers 550 W of continuous power for desktop builds. Its non-modular cable set includes a 20+4-pin main connector, two 4+4-pin CPU connectors, two 6+2-pin PCIe connectors and six SATA connectors. The unit measures 140 mm in length and fits small-form-factor cases. Active PFC and a single +12 V rail provide stable voltage across all loads.
Sustained Load Behaviour
A 120 mm FDB fan and large steel vents maintain airflow during extended operation. The five-protection suite (UVP, OVP, OPP, SCP, OCP) guards components when demand remains high. Hold-up time of 16 ms minimum keeps the system running through brief mains interruptions. DC-DC design on the +12 V rail ensures clean voltage delivery under continuous stress.
80 PLUS Efficiency Limits
The 80 PLUS White certification guarantees up to 80 % efficiency at typical loads. Efficiency drops below that threshold at very light or peak loads, so sustained high draw converts more input power to heat. The compact 140×150×86 mm chassis limits thermal mass, making case airflow important for long sessions. Non-modular cables add resistance that slightly reduces usable headroom at full rating.
주요 특징
- 80 PLUS certification delivers up to 80% efficiency
- Single +12V rail with DC-DC design provides stable voltage
- 120 mm FDB fan and vented steel shell optimise thermal control
- Compact 140 mm length fits small-form-factor builds
- Five protection circuits safeguard against over-voltage, overload and short-circuit
사양
| Brand | Rosewill |
|---|---|
| Model | VNW550 |
| Maximum Power | 550 W |
| Fans | 1 x 120 mm |
| PFC | Active |
| Main Connector | 24Pin |
| +12V Rails | Single |
| PCI-Express Connector | 2 x 6+2-Pin |
| SATA Power Connector | 6 |
| Max PSU Length | 140 mm |
| Modular | Non-Modular |
| Hold-up Time | 16ms min. |
| Efficiency | Up to 80% |
| Energy-Efficient | 80 PLUS Certified |
| Over Voltage Protection | Yes |
| Overload Protection | Yes |
| Output | +3.3V@18A, +5V@18A, [email protected] , [email protected] , +5VSB@3A |
| Connectors | 1 x 20+4-Pin Main Connector 2 x 4+4-Pin ATX12V / EPS12V Connector 2 x 6+2-Pin PCI-E Connector 6 x 15-Pin SATA Connector 2 x 4-Pin Peripheral Connector |
| 배송 무게 | 1.70 kg |
| 포장 크기 | 234 × 198 × 99 mm |
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이 상품에 대한 질문
How loud does the 120 mm FDB fan get when the 550 W unit runs all day?
The 120 mm FDB silent fan is designed for low-noise operation; the steel shell with large vents and optimized thermal control keeps airflow steady during continuous load.
Which cables are permanently attached since the PSU is non-modular?
Fixed cables include a 20+4-pin main connector, two 4+4-pin ATX12V/EPS12V connectors, two 6+2-pin PCI-E connectors, six SATA connectors and two 4-pin peripheral connectors.
Will the 140 mm long chassis fit alongside an older ATX motherboard that uses a 24-pin main power socket?
Yes, the 140 mm depth and 20+4-pin main connector match standard ATX dimensions, so it installs in older cases and works with legacy 24-pin motherboards.
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