The be quiet! Pure Power 12 M 1200W(MPN BN346) is a high-performance internal power supply unit (PSU) designed for advanced desktop PCs. It offersATX 3.1 compatibility80 PLUS Gold efficiency andPCIe 5.1 support making it ideal for modern high-end systems. With support for modern standby quiet operation and full protective features it is backed by a 10-year warranty for long-term reliability.
Key Features Continuous power:1200W (peak up to 1250?W) Efficiency:80 PLUS Gold certified up to 93.7% efficiency Compliance:ATX 3.1 / EPS 12V v2.92 PCIe support:Native 12VHPWR for PCIe 5.1 GPUs + 4 x 6+2-pin PCIe connectors Rail design:Dual 12V rails for stable power under load Cooling:120?mm temperature-controlled fan with rifle bearing Topology:LLC + SR + DC/DC for high performance and voltage stability Modular cabling:Fully modular sleeved and flat cables Warranty:10 years manufacturer warranty
Full Technical Specification
Model / MPN: Pure Power 12 M 1200W (BN346)
Form Factor: ATX
Compliance: ATX 3.1 EPS 12V v2.92
Power Output: 1200W continuous / 1250W peak
Efficiency Rating: 80 PLUS Gold (up to 93.7%)
Input Voltage: 110–240VAC
Input Frequency: 50–60Hz
Input Current: 7.5 A / 15 A
Power Factor: > 0.98 at full load
Standby Power: < 0.12 W
Operating Temperature: 0–40 °C
MTBF: >100 000 hours at 25 °C
12V Rails: 2 (55 A + 50 A)
Protections: OCP OVP UVP OPP OTP SCP inrush surge
Hold-up Time: ~19 ms at 100% load
Fan: 120 mm rifle-bearing fan
Noise Levels: As low as ~10 dB(A) under light load
Modularity: Fully modular
Connectors: 1 x 24-pin ATX 2 x 4+4-pin CPU (EPS) 1 x 12VHPWR (600 W) 4 x 6+2-pin PCIe 6 x SATA 2 x Molex (PATA)