be quiet! Straight Power 12 1000W
Expert rating8.7 / 10
- Wattage:
- 1000 W
- 80 PLUS Rating:
- Platinum
- Modularity:
- Fully Modular
- ATX Standard:
- ATX 3.1
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Manufacturer: be quiet! Last updated: 2026-09-12
be quiet! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0) Review
If you're searching for the be quiet! Straight Power 12 1000W, or just looking for a solid 1000W 80 PLUS Platinum PSU in a ATX form factor, here's the full rundown on specs, price, and how it stacks up.
Short answer: the Straight Power 12 1000W is a fully modular 1000W unit built to the ATX 3.0 spec, and we'd recommend it if you want Platinum-tier efficiency at this wattage without chasing a flagship price tag.
Efficiency and Build Quality
The Straight Power 12 1000W carries an 80 PLUS Platinum certification and Cybenetics Platinum efficiency / A+ noise, built on a be quiet! (in-house) platform. Its 135mm Silent Wings fan, FDB keeps noise down.
Connectors and Cabling
You get 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6 (600W), 4x PCIe 6+2-pin, 8x SATA, 4x Molex. Cable lengths run 24-pin 700mm, EPS 700mm, 12V-2x6 650mm, PCIe 650mm, SATA 850mm, and the cables are standard black ribbon/flat, not sleeved. It's rated for a 17ms hold-up time and backed by OCP, OVP, OPP, SCP, OTP, UVP protection circuitry.
Comparison to Alternatives
Compared to the be quiet! Straight Power 12 1500W, the Straight Power 12 1000W lands in the same efficiency tier at a different capacity, so the choice mostly comes down to how much wattage headroom you actually need. It's also worth cross-shopping against the Corsair HX1000i if you're weighing Platinum-tier options in this wattage class; both land in a similar price bracket, so the deciding factor usually comes down to form factor, cable sleeving, and warranty length.
Specifications
Identity
| Brand | be quiet! |
|---|---|
| Model Number | Straight Power 12 1000W |
Output and rails
| +12V Rail Amperage | 83.3 A |
|---|---|
| Single +12V Rail | Yes |
Standards and compliance
| PCIe CEM Standard | PCIe 5.1 |
|---|---|
| Hold-Up Time | 25.3 ms |
Connector inventory
| EPS 8-pin Connectors | 2 |
|---|---|
| SATA Connectors | 9 |
| Molex Connectors | 2 |
Form factor and fit
| Length | 160 mm |
|---|---|
| Colour | Black |
Cooling
| Fan Bearing | Fluid Dynamic |
|---|
Build quality
| Topology | Full-Bridge LLC + DC-DC |
|---|---|
| MTBF | 100000 hours |
Cables
| Modularity | Fully Modular |
|---|
Monitoring, protection and price
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP |
|---|---|
| Price | 219.99 USD |
| Warranty | 10 years |
| Wattage | 1000 W |
|---|---|
| 80 PLUS Rating | Platinum |
| ATX Standard | ATX 3.1 |
| Form Factor | ATX |
| 12V-2x6 Connectors | 1 |
| Zero-RPM Mode | No |
| Sleeved Cables | Yes |
| PCIe 8-pin Connectors | 4 |
| Connector Count | 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x 12V-2x6, 4x PCIe 6+2-pin, 9x SATA, 2x Molex |
| Fan Size | 135 mm |
| Fan Model / Bearing | 135mm Silent Wings, fluid dynamic bearing, 6-pole motor |
| Japanese Capacitors | Yes |
| Source URL | https://www.bequiet.com/en/powersupply/4109 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.7 / 10
1000W gives the Straight Power 12 enough headroom for a high-end RTX 40/50-series build while keeping be quiet!'s Silent Wings acoustic tuning, sitting between the 850W and 1200W SKUs.
Best for
- High-end single-GPU gaming builds (RTX 4080/4090-class cards)
- Builders who want Platinum-tier efficiency with future GPU upgrade headroom
- Systems that benefit from a native 12V-2x6 cable
Not for
- Budget builds where a 550-650W unit would be sufficient
- Extreme dual-GPU or workstation rigs needing 1200W+
- Buyers who specifically need SFX/SFX-L sizing
FAQs
What are the key specifications of the be quiet! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0)?
The be quiet! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0) is a power supply from be quiet!. Key specs: Wattage 1000 W, 80 PLUS Rating Platinum, Cybenetics Efficiency Platinum, Cybenetics Noise A+, Modularity Fully Modular.
Will the be quiet! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0) work with my current setup?
The be quiet! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0) lists Wattage is 1000 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! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0) best suited to?
It suits high-end single-gpu gaming builds (rtx 4080/4090-class cards), builders who want platinum-tier efficiency with future gpu upgrade headroom, systems that benefit from a native 12v-2x6 cable.
What are the drawbacks of the be quiet! Straight Power 12 1000W (1000W/80+ Platinum/ATX/Fully Modular/ATX 3.0)?
It is a poor fit for budget builds where a 550-650w unit would be sufficient, extreme dual-gpu or workstation rigs needing 1200w+, buyers who specifically need sfx/sfx-l sizing.
Compare and read more
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