Specification
Detail

Model
HELIOS M1-550B

Form Factor / Type
ATX12V v2.4

Total Output Power
550 W

Efficiency Rating
80 PLUS Bronze (≈ up to ~85% typical efficiency)

AC Input
100-240 V ~ 4-8 A, 47-63 Hz

DC Output Rails
+3.3 V / +5 V / +12 V / −12 V / +5Vsb

Max Output Current
18 A / 13 A / 42 A / 0.3 A / 2.5 A for +3.3V/+5V/+12V/−12V/+5Vsb

Max Output Power (by rail)
100 W / 504 W / 3.6 W / 12.5 W for respective rails

Dimensions (L×W×H)
140 × 150 × 86 mm

Fan
120 mm hydraulic bearing

Modular Design
Non-Modular (all cables attached)

Cable Style
Flat black cables for better routing/airflow

Protection Features
OVP, UVP, OPP, OCP, SCP

Connectors
Main (1 × 20+4 pin), CPU (1 × 4+4 pin), PCI-E (2 × 6+2 pin), SATA (5 × 5-pin), Molex (3 × 4-pin)

Additional Features
APFC with PF value ~0.99; supports C6/C7 power states

Warranty
Typically listed as 3 – 5 years depending on region