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PC parts / Power supplies

be quiet! Pure Power 13 M 1200W
Power
1,200W
Efficiency
80 PLUS Gold
Modular cables
Fully modular
ATX version
ATX 3.1

53 of 66 fields known.

All specs

SourceCalculated

General

Predecessor
Not available
Successor
Not available
Markets
Not available
Form factor
ATX6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026DUT Information: Type ATX12V. The back face is 150 x 85 mm, the ATX size.

Power

Rated continuous power
1,200W6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Manufacturer-provided information: Rated Power 1200 W.
Full power rated up to
Not available
Alternative low power mode (ALPM)
Yes6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Temperature and Compliance Info: ALPM compatible, checked. The report also shows the ATX 3.1 badge and a passed ATX v3.1 power excursion test.

Certifications

80 PLUS rating
80 PLUS Gold8Certification listclearesult.com/80plus/sites/80plus/files/manufacturer-certificate/BE%20QUIET_L13-M-1200W_1200W_SOCE%208025_Report.pdfRead 15 October 202680 PLUS ID 8025, model L13-M-1200W, type ATX 3.1: Gold at 115V, test date 2025-11-03. The sample serials 029EUL542000000x match the serial family of the Cybenetics sample 029EUL6070000044. The maker and the box claim 80 PLUS Gold.
Cybenetics efficiency at 230V
Cybenetics Platinum6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026ETA Platinum badge at 230V.
Cybenetics noise at 115V
A6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026LAMBDA A badge at 115V.
Cybenetics noise at 230V
A6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026LAMBDA A badge at 230V.

Measured

Average efficiency at 115V (measured)
89.708%6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Average over more than 1450 load combinations at 115V. Tested Jan 16, 2026, ambient 28-32 C. EU sample.
Average efficiency at 230V (measured)
91.903%6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Average over more than 1450 load combinations at 230V.
Light-load efficiency at 115V (measured)
75.474%6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Efficiency at 2% load at 115V. The unit is above 500 W, so the 2% load applies.
Average power factor at 115V (measured)
0.9856Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.955.
Average noise at 115V (measured)
21.03dB(A)6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is 22.69 dBA.
Noise at full load at 115V (measured)
43.7dB(A)6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Typical load tests at 115V, 100% load row: 43.7 dB(A) at 2166 rpm fan speed, intake 45.14 C and exhaust 49.83 C.
Standby power with no load at 115V (measured)
0.023W6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0230 W. At 230V it is 0.1111 W.
Hold-up time (measured)
19.8ms6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 19.8 ms, AC loss to PWR_OK 16.8 ms, at maximum continuous load. The maker's own figure is 19.11 ms at 100% load.
12V ripple at full load (measured)
32.81mV6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Non-accredited. 12V ripple at full load at 115V. At 230V it is 32.61 mV.
12V load regulation (measured)
1.04%6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Non-accredited. 12V load regulation at 115V. At 230V it is 1.02%.

Cables and connectors

Cables
ConnectorConnectorsCablesLength to first plug (mm)Wire gaugeRated power (W)
ATX 24-pin (20+4)1155016-18AWGNot available
CPU 8-pin (EPS, 4+4)2265016AWGNot available
PCIe 8-pin (6+2)2160016AWGNot available
PCIe 8-pin (6+2)2150016AWGNot available
12V-2x61160016AWG600
SATA power6250018AWGNot available
4-pin Molex2150018AWGNot available
CPU (EPS) connectors
2
PCIe 8-pin connectors
4
16-pin GPU connectors
1
SATA power connectors
6
4-pin Molex connectors
2

Fan

Fan mode switch
Not available

Protection and parts

Protections
Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)2Retailer pagedirectcomputers.co.uk/products/be-quiet-pure-power-13-m-1200w-psu-80-plus-gold-exceptionally-quiet-120mm-fan-atx-3-1-10-year-warrantyRead 15 October 2026Spec table: OTP, OCP, OPP, SCP, OVP, UVP and SIP (surge and inrush) all Yes. NLO is added from the Cybenetics protection tests.6Measurementcybenetics.com/evaluations/psus/3127Read 15 October 2026Protection Features (Manufacturer) lists OPP, +12V OCP, SCP, surge and inrush protection, with OTP and fan failure protection unticked. The protection tests show OTP working at 134 C, UVP at 90 V and 80 V, SCP on all rails and NLO. Fan failure protection is missing. The maker's spec table adds OVP.9Retailer pageparadigit.ie/be-quiet-pure-power-13-m-1200-w/21872421/productRead 15 October 2026Protection: over current, over power, over voltage, overheating, short circuit, surge and inrush, under voltage.
All-Japanese capacitors
Not available

Monitoring and lighting

We could not find any of these 4 fields. Show them
Software monitoring
Not available
Software
Not available
Built-in power display
Not available
RGB lighting
Not available

Dimensions and weight

Front and side, drawn to scale.

Weight
1.8kg(4 lb)7Reviewhwbusters.com/psus/be-quiet-pure-power-13-m-1200w-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: 1.80 kg (3.97 lb), also in the text of the Box page. The review does not say whether cables are included. The maker's spec table copy on the Direct Computers and Paradigit listings prints 2.69 kg, which is 0.89 kg more than the measured unit and is not stored.

In the box

Warranty

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINLaunch price (US)Launch price (EU)Markets
BP029EU4260052193655Not available€214.9EU
BP029USNot available$229.9Not availableUS
BP029UK4260052193723Not availableNot availableGB

Sources

We read 10 sources for this power supply. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 1 field
  2. Read 15 October 2026Backs 21 fields
  3. Read 15 October 2026Backs 8 fields
  4. Read 15 October 2026Backs 2 fields
  5. Read 15 October 2026Backs 11 fields
  6. Read 15 October 2026Backs 30 fields
  7. Read 15 October 2026Backs 11 fields
  8. Read 15 October 2026Backs 1 field
  9. Read 15 October 2026Backs 4 fields
  10. Read 15 October 2026Backs 2 fields

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