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GAMDIAS HELIOS M1-550B 80 Plus Bronze Non-Modular Power Supply

~~৳ 5,600~~ ৳ 5,400

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

Category: Prolink Brand: Gamdias

Specifications
Description

Specifications

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

Description

The GAMDIAS HELIOS M1-550B 80 Plus Bronze Non-Modular Power Supply is a well-balanced choice for mid-range PC builds, offering solid performance, efficiency and reliability at an attractive price point. Rated at 550 W of continuous output, it conforms to the ATX12V v2.4 standard and is designed to meet the 80 PLUS Bronze certification—delivering up to approximately 85% energy conversion efficiency under typical load conditions.

One of its key advantages lies in its broad input compatibility. It accepts AC input voltages from 100 to 240 V (4–8 A, 47–63 Hz), making it suitable for a variety of power grids around the world — including those with fluctuating voltage or frequency characteristics. The internal build incorporates advanced features such as Active Power Factor Correction (APFC) with a PF value of 0.99, which helps deliver cleaner power and improved efficiency.

On the output side, the HELIOS M1-550B offers a multi-rail configuration: the +12 V rail can supply up to 42 A (504 W), alongside +3.3 V and +5 V rails supporting 18 A / 13 A respectively; there are also minor –12 V and +5Vsb rails. This makes it capable of powering typical gaming systems with a moderate graphics card, CPU, storage drives and peripherals.

The unit is non-modular, meaning all cables are permanently attached, but GAMDIAS has made the cables flat and black, helping with internal airflow and cable routing. Cooling is handled by a 120 mm hydraulic-bearing fan, which adjusts its speed in response to temperature and load, helping maintain quieter operation and longer component lifespan.

From a protection standpoint, this PSU includes a full suite of safeguards: Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), Over-Power Protection (OPP), Over-Current Protection (OCP), and Short-Circuit Protection (SCP).

In real-world terms, what this all means is that the HELIOS M1-550B offers a dependable power platform for builders who want efficient performance without breaking the bank. It may not have the ultra-high efficiencies of Gold or Platinum units, nor the flexibility of a fully modular cable set—but for many mainstream gaming or productivity PCs, it hits a sweet spot of cost, performance and efficiency.

If you have specific requirements—such as high-end multi-GPU setups, a fully modular cable design, or compatibility with ATX 3.0 / PCIe 5 standards—then you may want to consider stepping up. But for a straightforward 550 W build, this PSU is a solid and reliable choice.

At Neton Tech, Dhaka’s trusted shop for computer hardware and accessories, we are excited to bring you the GAMDIAS HELIOS M1-550B — a powerful, efficient, and dependable 550 W power supply that brings great value to your gaming or productivity PC build.