PSU 1200W 80+ PLATINUM BE QUIET! STRAIGHT POWER 12
be quiet! Straight Power 12: Ultimate silence for exceptional performance
The be quiet! Straight Power 12 is a future-proof 100% modular ATX 3.0 power supply with 80 PLUS Platinum certification, near-inaudible operation with its Silent Wings fan and PCIe 5.0 compatibility.
Its reliability makes it an ideal choice for all users looking for a reliable power supply to set up their configuration with a recent graphics card.
Key features
- 80 PLUS Platinum certification (up to 93.7%)
- ATX 3.0 power supply fully compatible with PCIe 5.0 graphics cards and those with 6+2 pin connectors
- Capable of handling very high transient load variations
- Ultra-quiet 135 mm Silent Wings fan
- Full bridge / LLC technology for unrivalled signal stability
- Solid 12V rail
- 105°C Japanese capacitors for maximum stability and reliability
- DC-side wireless design for improved cooling and component longevity
- Modular cable management
- 2 PCIe 5.0 12VHPWR 600 W slots and 4 PCIe 6+2 pin slots for high-end and overclocked graphics cards
General data
| Model |
Straight Power 12 1200W |
| Continuous power (W) |
1200 |
| Peak power (W) |
1270 |
| Form factor |
Version 3.0 |
| Form factor EPS 12V |
Version 2.92 |
| Topology |
Full bridge + LLC + SR + DC/DC |
| Digitally controlled |
– |
| Voltage (Vac) |
110 – 240 |
| Frequency (Hz) |
50 – 60 |
| Input current (A) |
15 / 7.5 |
| Power factor at 100% load |
>0.99 |
| Modern standby |
✓ |
| Power consumption in standby (W) |
0.14 |
| Average life time (h / 25°C) |
>100,000 |
| Operating temperature up to (°C) |
40 |
| 80 PLUS certification |
Platinum |
| Efficiency (%) at 230V, 2% load |
65.0 |
| Efficiency (%) at 230V, 10% load |
89.0 |
| Efficiency (%) at 230V, 20% load |
93.1 |
| Efficiency (%) at 230V, 50% load |
93.7 |
| Efficiency (%) at 230V, 100% load |
92.4 |
| Cybenetics Noise Rating |
– |
| Fan |
Silent Wings |
| Fan size (mm) |
135 |
| Bearing technology |
FDB |
| Motor technology |
6-pole fan motor |
| Max. fan speed (rpm) |
2600 |
| dB(A) at 10% load |
9.4 |
| dB(A) at 20% load |
9.4 |
| dB(A) at 50% load |
9.8 |
| dB(A) at 100% load |
32.2 |
| Multi-rail operation (12V rails) |
– |
| 12V single rail operation |
✓ |
| Overclocking key |
– |
| +3.3V (A) |
25 |
| +5V (A) |
25 |
| +12V1 (A) |
100 |
| +12V2 (A) |
– |
| +12V3 (A) |
– |
| +12V4 (A) |
– |
| +12V5 (A) |
– |
| +12V6 (A) |
– |
| -12V (A) |
0.5 |
| +5Vsb (A) |
3 |
| Max. combined power 12V (W) |
1200 |
| Max. combined power 12V-2×6 (W) |
800 |
| Max. combined power 3.3V + 5V (W) |
150 |
| Hold-up time at 100% load (ms) |
23.5 |
| Hold-up time at 80% load (ms) |
30.5 |
| Power good signal (ms) |
100 – 150 |
| Modular cables |
✓ |
| Sleeved cables |
✓ |
| Flat cables |
– |
| Maximum cable length (cm) |
100 |
| Cable length to motherboard (cm) |
60 |
| No. of cables |
10 |
| ATX-Motherboard (20+4-pin) |
1 |
| P4+4 (CPU) |
1 |
| P8 (CPU) |
1 |
| P4 (CPU) |
– |
| 12V-2×6 cables |
2 |
| PCI-e 6+2-pin (GPU) |
4 |
| PCI-e 6-pin (GPU) |
– |
| SATA |
9 |
| PATA |
2 |
| FDD (Floppy) |
– |
| OTP (over temperature protection) |
✓ |
| OCP (over current protection) |
✓ |
| OPP (over power protection) |
✓ |
| SCP (short circuit protection) |
✓ |
| OVP (over Voltage protection) |
✓ |
| UVP (under Voltage protection) |
✓ |
| SIP (Surge & Inrush protection) |
✓ |
| BSMI |
✓ |
| CB |
✓ |
| CCC |
✓ |
| CE |
✓ |
| cRUus |
– |
| cTUVus |
✓ |
| CU |
✓ |
| FCC |
✓ |
| RCM |
✓ |
| TÜV |
✓ |
| UKCA |
✓ |
| IRAM |
– |
| Energy Star |
8.0 |
| ErP |
✓ |
| WEEE |
✓ |
| RoHS |
✓ |
| Triman |
✓ |
| Thumb screws |
– |
| Screws |
✓ |
| Cable ties |
✓ |
| Velcro cable ties |
– |
| User manual languages |
CN, DE, EN, ES, FR, JP, PL, RU, TW, KR |
| OCK slot bracket with switch / OCK jumper |
– |
| SFX-to-ATX adapter bracket |
