The be quiet! Pure Power 13 M 550W is the last of the line that I will evaluate. This is one of the very few ATX v3.1 compliant PSUs with only 550W max power.
The be quiet! Pure Power 13 M 550W is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.
The Pure Power 13 M series by be quiet! is a line of fully modular ATX power supplies designed for users who seek a balance of performance, efficiency, and silent operation. All models are certified by Cybenetics, achieving Platinum efficiency and a perfect noise score (LAMBDA A++). One of the standout features is full support for the ATX 3.1 and PCIe 5.1 standards, ensuring compatibility with the latest GPUs and next-gen components, including high-powered cards like the NVIDIA RTX 40/50 series. It is not common to see a 550W ATX v3.1 compliant power supply, but the Pure Power 13 M line does.
- be quiet! Pure Power 13 M 1000W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 850W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 750W ATX v3.1 PSU Review
- be quiet! Pure Power 13 M 650W ATX v3.1 PSU Review
From a design standpoint, the Pure Power 13 M units emphasize quiet operation, employing a custom 120mm fan from be quiet! known for its low noise levels even under load. The modular cabling system is a practical addition, helping reduce clutter and improve airflow within the case. With models ranging from 550W to 1000W, the series offers flexibility for different system builds, from mid-range desktops to high-performance gaming rigs. This is not a high-end line, targeting users who want a good-performing and quiet PSU without breaking the bank.
In today’s review, I will evaluate the 550W member of the line, which has enough capacity to support an entry-level gaming system. Don’t forget that ATX v3.1 PSUs can handle transient loads as high as double their capacities, meaning that this 550W PSU can handle transient loads up to 1100W!
Check out our top ATX v3.1 PSU guide before purchasing your next PSU.
Low-Capacity ATX v3.x PSU Reviews:
- Corsair RM650e ATX v3.1 PSU Review
- Cooler Master GX III 650W ATX v3.0 PSU Review
- DeepCool PN650D ATX v3.1 PSU Review
- Deepcool PL550D: ATX v3.1 PSU Review
- MSI MAG A650GLS PCIE5 ATX v3.1 PSU Review
- Thermaltake Toughpower GF A3 650W PSU Review
- Thermalright TR-TGFX 550 ATX v3.1 PSU Review
- XPG Core Reactor II VE 650W PSU Review
- XPG KYBER 650W PSU Review
- Manufacturer (OEM): FSP
- Max Power: 550W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (90.603%), [230V] Cybenetics Platinum (92.463%)
- Noise: [115V] Cybenetics A++ (<6.00 dB[A]), [230V] Cybenetics A++ (<6.00 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 550W
- Number of 12V rails: 1
- Power 5V + 3.3v: 120W
- Power 5VSB: 15W
- Cooling: 120mm Rifle Bearing Fan (BQ QF2-12025-LS)
- Semi-Passive Operation: ✓
- Modular Design: Yes (Fully)
- High Power Connectors: 1x EPS (1x cable), 2x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (300W)
- Peripheral Connectors: 5x SATA (2x cables), 2x 4-pin Molex (1x cable)
- ATX Cable Length: 550mm
- EPS Cable Length: 650mm
- 12+4 pin PCIe Cable Length: 600mm
- 6+2 pin PCIe Cable Length: 500mm
- Distance between SATA/4-pin Molex: 150mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 160mm
- Weight: 1.65 kg (3.64 lb)
- Warranty: 10 Years
- MSRP (excluding VAT): no info
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Power | Amps | 20 | 20 | 45.8 | 3 | 0.3 |
| Watts | 120 | 550 | 15 | 3.6 | ||
| Total Max. Power (W) | 550 | |||||
Are you willing to evaluate the lowest category Be Quiet series as well? Most notably the brand new System Power 11 series? It has 450W and 550W members, and it is the cheapest Be Quiet PSU on the market. A lot of people are buying them, without knowing how dangerous (or safe?) they are, after the System Power 10 test turned out that they are not that terrible, contrary to the tribal knowledge (System Power 10 Bronze series has been downgraded to Tier E on the SPL PSU Tier list).
If they send them to me sure. SP used to be pretty good for their money.
Can you ask them?
Typo: All links on first page lead to 550W models except for the first one with 1000W.
thanks! fixed