DA550 Gold

80 PLUS Gold 550W fully modular ATX power supply

■ High efficiency with 80 PLUS Gold certification

■ 24/7 continuous power output with 40℃ operating temperature

■ Class-leading single +12V rail

■ Silent running 120mm FDB fan with 18 dBA minimum

■ Japanese electrolytic capacitors

■ Specially designed cover increases effectiveness of residual heat dissipation

■ Compact design with a 140mm depth for easy integration

■ Strict ±3% voltage regulation and low ripple & noise

Designed for 80 PLUS Gold level of efficiency to reduce wasted heat and save on electricity
Built-in 120 mm fan has excellent airflow and low noise, perfect for quiet home or office use
Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking
Flat cables have much greater flexibility to allow for tighter folding and management of cables
Japanese electrolytic capacitors
Specially designed cover designed to effectively dissipate the residual heat
Advanced protections for safety and security
Over current protection
Over power protection
Over voltage protection
Short circuit protection
Over temperature protection


Product No.
Max. DC Output
Power density
305W per liter
Load Range
+3.3V +5V +12V +5VSB -12V
20A 20A 45.5A 2.5A 0.3A
Peak (Amps)
/ / / / 3.0A
0A 0A 0A 0A 0A
Range (%)
±3% ±3% ±3% ±3% ±10%
Line Reg.(%)
±1% ±1% ±1% ±1% ±1%
30mV 30mV 40mV 30mV 40mV
Model (safety certification)
black (lead-free paint)
Combined +3.3V & +5V
Combined +12V
Input Voltage
90 ~ 264 Vrms
Input Frequency Range
47Hz ~ 63Hz
Active PFC (PF>0.9 at full load)
87% ~ 90% (at 20% ~ 100% loading)
100,000 hours
Operating temperature
0 ~ 40°C
Over current protection
Over power protection
Over voltage protection
Short circuit protection
Over temperature protection
1 x 24 / 20-Pin motherboard connector (600mm)
2 x 8 / 4-Pin EPS / ATX 12V connector ("750mm" x 2)
2 x 8 / 6-Pin PCIe connector ("650mm" x 2)
8 x SATA connector ("600mm / 150mm / 150mm / 150mm" x 2)
3 x 4-Pin Peripheral connector + 1 x 4-Pin Floppy adapter connector (600mm / 150mm / 150mm / 150mm)
Cooling System
Silent 120mm FDB fan
Form factor
Noise Level
18 dBA minimum
150mm (W) x 86mm (H) x 140mm (D)
5.91" (W) x 3.39" (H) x 5.51" (D)
1.37 kg
80 PLUS Gold
GPU Support list
Compatible with ATX12V v2.4

● Specifications presented on this page contains most recent revisions and may differ from those printed on retail boxes or manuals.

This PSU’s motherboard connector includes a 4pin sense wire that needs to be connected to the PSU’s modular interface as shown. Sense wire helps improve PSU’s regulation performance by around 1%-2%.

Dimensions and cable pinout diagram

  • Q&A

Describe Ver Size Download
DA550 Gold manual V1.0 581 KB
DA550 Gold High resolution photos 17,411 KB
DA550 Gold Product Sheet V1.0 1372 KB
Multilanguage installation manual V1.0 8485KB
Warranty Information     View

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