be quiet! Pure Power 12 550W
Expert rating7.8 / 10
- Wattage:
- 550 W
- 80 PLUS Rating:
- Gold
- Modularity:
- Non-Modular
- ATX Standard:
- ATX 3.1
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Manufacturer: be quiet! Last updated: 2026-09-12
Where to buy
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be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick) Review
If you want a be quiet! power supply for a quiet mainstream build but don't need the full modularity of the M variant, the Pure Power 12 550W is the semi-modular entry point into be quiet!'s Gold-rated Pure Power 12 line.
We think this hits a sweet spot for a quiet mid-range gaming PC: Gold efficiency, be quiet!'s reputation for a genuinely quiet fan curve, and a fixed 24-pin/EPS setup that keeps the price below the fully modular Pure Power 12 M.
Acoustic Focus
be quiet! tunes the fan curve on Pure Power 12 conservatively, favoring quiet operation over squeezing out maximum efficiency at full load, which matches the brand's whole-company focus on acoustics over raw numbers.
Comparison to Alternatives
Against the be quiet! Pure Power 12 M 750W already in the catalog, the 550W drops 200W of headroom and full modularity to hit a lower price for smaller builds. Against the Corsair CX550M, the Pure Power 12 550W adds Gold efficiency and a quieter fan curve over Corsair's Bronze-rated budget unit at a similar wattage.
Specifications
Identity
| Brand | be quiet! |
|---|---|
| Model Number | Pure Power 12 550W |
Output and rails
| +12V Rail Amperage | 45.8 A |
|---|---|
| Single +12V Rail | Yes |
Standards and compliance
| PCIe CEM Standard | PCIe 5.1 |
|---|---|
| Hold-Up Time | 16.6 ms |
Connector inventory
| EPS 8-pin Connectors | 1 |
|---|---|
| SATA Connectors | 5 |
| Molex Connectors | 1 |
Form factor and fit
| Length | 160 mm |
|---|---|
| Colour | Black |
Cooling
| Fan Bearing | Rifle |
|---|
Build quality
| MTBF | 100000 hours |
|---|
Cables
| Modularity | Non-Modular |
|---|
Monitoring, protection and price
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP |
|---|---|
| Price | 74.99 USD |
| Warranty | 10 years |
| Wattage | 550 W |
|---|---|
| 80 PLUS Rating | Gold |
| ATX Standard | ATX 3.1 |
| Form Factor | ATX |
| 12V-2x6 Connectors | 1 |
| Zero-RPM Mode | No |
| Sleeved Cables | Yes |
| PCIe 8-pin Connectors | 2 |
| Connector Count | 1x 24-pin ATX, 1x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 5x SATA, 1x Molex (all fixed) |
| Fan Size | 120 mm |
| Fan Model / Bearing | 120mm be quiet! fan, rifle bearing |
| OEM / Platform | HEC |
| Cable Lengths | 24-pin 600mm, max cable length 550mm |
| Source URL | https://www.bequiet.com/en/powersupply/5684 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.8 / 10
A quiet, Gold-rated 550W unit that's the right call for mainstream builds that don't need full modularity.
Best for
- Quiet mainstream gaming builds
- RTX 4060/RX 7600-class GPUs
- Noise-sensitive living-room or office PCs
Not for
- Anyone wanting fully modular cables
- High-end or multi-GPU builds
- ATX 3.0/native 12V-2x6 requirements
FAQs
What are the key specifications of the be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick)?
The be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick) is a power supply from be quiet!. Key specs: Wattage 550 W, 80 PLUS Rating Gold, Cybenetics Efficiency Gold, Cybenetics Noise Standard+, Modularity Semi-Modular.
Will the be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick) work with my current setup?
The be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick) lists Wattage is 550 W. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick) best suited to?
It suits quiet mainstream gaming builds, rtx 4060/rx 7600-class gpus, noise-sensitive living-room or office pcs.
What are the drawbacks of the be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick)?
It is a poor fit for anyone wanting fully modular cables, high-end or multi-gpu builds, atx 3.0/native 12v-2x6 requirements.
Compare and read more
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