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Product Overview

The be quiet! Straight Power 12 Platinum 1200W is a fully modular ATX power supply with 80 PLUS Platinum certification and efficiency of up to 93.7%. It delivers 1200 W on a single 12V rail (100 A), supports ATX 3.1 and PCIe 5.1, and includes two native 12VHPWR (12+4 pin) connectors alongside four 6+2 pin PCIe connectors. A single temperature-controlled 135 mm fan keeps noise low, rated at 9.4 dB(A) at 20% load.

It suits high-end gaming and workstation builds where a current-generation graphics card, or two, needs clean and stable power. The connector set covers 9 SATA, 2 PATA and dual EPS (4+4 pin and 8-pin) outputs, and the modular cabling keeps the inside of the case tidy. Protection covers over-current, over-voltage, under-voltage, over-power, short-circuit, over-temperature and surge/inrush. The unit measures 150 x 86 x 180 mm and weighs 2.04 kg.

Specification

• Manufacturer: Be quiet
• Model: Straight Power 12 Platinum 1200W
• MPN: BN339
• EAN: 4260052189443
• Power Output: 1200 W
• 80 PLUS Rating: 80 PLUS Platinum
• Efficiency: Up to 93.7%
• Standards: ATX 3.1, ATX12V 2.4, EPS12V 2.9x, PCIe 5.1
• Form Factor: ATX
• Cabling: Fully modular
• +12V Output: 1200 W (100 A)
• 12VHPWR Connectors: 2x 12+4 pin
• PCIe Connectors: 4x 6+2 pin
• CPU/EPS Connectors: 1x 4+4 pin, 1x 8 pin
• SATA / PATA Connectors: 9x SATA, 2x PATA (4-pin 5.25″)
• Fan: 1x 135 mm, temperature-controlled, FDB bearing, 0–2600 RPM
• Noise Level: 9.4 dB(A) at 20% load, 9.8 dB(A) at 50% load, 32.2 dB(A) at 100% load
• Input Voltage: 110–240 V, 50/60 Hz
• Colour: Black
• Dimensions (W x H x D): 150 x 86 x 180 mm
• Weight: 2.04 kg
• Manufacturer warranty: 10 years

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