# Power Supply Unit be quiet! Straight Power 12 1200 W

**URL:** https://aio.lv/en/product--bequiet-bn339--10504028
**Data updated:** 2025-12-02 17:53 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** bequiet!
**Manufacturer code:** BN339
**EAN:** 4260052189443
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 226.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 187.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bequiet-bn339--10504028

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The be quiet! Straight Power 12 is a high-performance 1200 W power supply unit designed for PCs. It features a 20+4 pin ATX connector, active cooling with a 13.5 cm fan, and an 80 PLUS Platinum certification for energy efficiency. With an AC input voltage range of 110 - 240 V and a peak power of 1270 W, it ensures reliable power delivery. The PSU includes cables for CPU and SATA, with lengths of 60 cm for the motherboard and up to 1000 mm for SATA. Its sleek black design complements any build.

## Long description

Straight Power 12 1500W is an ATX 3.0 power supply with 80 PLUS® Platinum certification that combines high efficiency, a single large 12V rail and near-silent operation. It includes native 12VHPWR connectors for PCIe 5.0 graphics cards as well as multiple 6+2‑pin PCIe connectors for current GPUs, modular sleeved cables up to 100 cm, and premium Japanese 105°C capacitors for reliable, long-term use.
Advantages
The unit delivers up to 93.9% efficiency under typical loads, reducing power consumption and system heat. Its ATX 3.0 compliance and integrated 12VHPWR connectors make it compatible with next‑generation GPUs while also supporting existing cards via 6+2‑pin connectors. A high-end Silent Wings fan and an optimized funnel-shaped inlet provide effective cooling with minimal noise, and the wire-free interior allows unobstructed airflow. Full-bridge LLC topology and high-quality components ensure stable voltage regulation and low ripple for reliable performance.
Key specifications
Form factor: ATX 3.0
Rated power: 1500 W continuous
Efficiency certification: 80 PLUS Platinum (up to 93.9%)
12V rail: single massive 12V rail, high transient capability
Connectors: 2 × native 12VHPWR (PCIe 5.0), 4 × PCIe 6+2‑pin
Fan: Silent Wings high-end fan with fluid-dynamic bearing
Capacitors: Japanese 105°C capacitors
Cables: Modular sleeved cables, up to 100 cm
Topology: full-bridge LLC for improved regulation and low ripple
How to use
Install the Straight Power 12 1500W into a compatible ATX chassis following standard PSU mounting procedures. Connect the native 12VHPWR plugs directly to compatible PCIe 5.0 graphics cards, or use the included 6+2‑pin PCIe connectors for current-generation GPUs. Attach the modular sleeved cables as needed for motherboard, CPU, storage and peripheral power, keeping cables routed to maintain unobstructed airflow. Ensure the PSU is connected to a properly rated mains supply and that all connectors are fully seated before powering the system.
Recommendations
Use this PSU in high-performance or workstation systems where sustained power delivery and low noise are required. Verify GPU compatibility with 12VHPWR connectors and ensure adequate case ventilation to maximize cooling and component lifespan.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 1200 W |
| Efficiency | 92.4 % |
| Peak power | 1270 W |
| Hold time | 23 ms |
| Power protection features | Under voltage, Short circuit, Overheating, Over voltage, Over power, Over current |
| Power factor | 0.99 |
| Combined power (+3.3V) | 150 W |
| Combined power (+12V) | 1200 W |
| Combined power (+5V) | 150 W |
| Max output current (+3.3V) | 25 A |
| Max output current (+5V) | 25 A |
| Max output current (-12V) | 0.5 A |
| Max output current (+5Vsb) | 3 A |
| Input current | 15/7.5 |
| AC input frequency | 50/60 |
| AC input voltage | 110 - 240 |
| Max output current (+12V1) | 100 A |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 9 |
| EPS power connector (8-pin) | Yes |
| PCI Express power connectors (6+2 pin) | 4 |
| Cabling type | Fully-Modular |
| Number of PATA power connectors | 2 |
| Motherboard power cable length | 600 mm |
| SATA power cable length | 1000, 850, 700, 550 |
| CPU power cable length | 700 mm |
| Peripheral (Molex) power cable length | 850 |
| PCI Express power cable length | 600 mm |
| EPS power connector (4+4 pin) | Yes |
| PCI Express power connectors (16-pin) | 2 |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS Platinum |
| Mean time between failures (MTBF) | 100000 h |
| Noise level | 32.2 dB |
| Bearing technology | FDB |
| ATX version | 3.0 |
| EPS version | 2.92 |
| Supported motherboard form factors | Mini-ATX, Micro ATX, ATX |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 135 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan speed | 0 - 2600 |
| On/off switch | Yes |
| Product colour | Black |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | WEEE, CE, RoHS, Federal Communications Commission (FCC), UKCA |

### Technical details

| Feature | Value |
|---|---|
| Sustainability compliance | Yes |
| Sustainability certificates | ErP, Triman, ENERGY STAR |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 2.04 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 180 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 40 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 3890 g |
| Package depth | 328 mm |
| Package height | 102 mm |
| Package width | 248 mm |
| Package type | Box |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA, CPU |
| Cable tie(s) included | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Shipping (inner) case width | 282 mm |
| Shipping (inner) case length | 447 mm |
| Shipping (inner) case height | 346 mm |
| Products per shipping (inner) case | 4 pc(s) |
| Shipping (inner) case net weight | 17010 g |
| Warranty period | 10 year(s) |

## FAQ

### How much does the Power Supply Unit be quiet! Straight Power 12 cost, and is it available for purchase?

The price is 226.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 984 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Power Supply Unit be quiet! Straight Power 12 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All bequiet! products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized bequiet! service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, motherboard power connector, 80 plus certification, fan diameter, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Power Supply Unit be quiet! Straight Power 12?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10504028/64810214_large.webp