SKU: XCT5B7VTEW |  Mfg. Part: BN643  | UPC: 64380943135105705850  | 
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Be Quiet BN643 ! Straight Power 11 Platinum 850W Fully Modular PSU

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Condition: New

$198.92  $268.54
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Product Overview

The be quiet! Straight Power 11 Platinum 850W is a fully modular power supply designed for maximum efficiency and quiet operation. With 80 PLUS Platinum certification, this power supply provides up to 94% efficiency, ensuring your system runs efficiently while minimizing energy costs. It features a virtually inaudible Silent Wings 3 135mm fan, ensuring quiet performance even under load.

Built with Japanese 105°C-rated capacitors, the Straight Power 11 guarantees stable and reliable performance. Its modular cable design not only enhances system airflow but also allows for flexible build configurations. With powerful multi-GPU support and several safety protections, this power supply is an excellent choice for high-performance systems.

Technical Specifications

Specifications

  • Efficiency: 80 PLUS Platinum (up to 94%)
  • Cooling: Virtually inaudible Silent Wings 3 135mm fan
  • Design: Funnel-shaped fan opening for high airflow intake
  • Internal Structure: Wire-free on the DC side for enhanced cooling
  • Cable Management: Fully modular cables for flexible configurations
  • Multi-GPU Support: Two PCI-Express connectors
  • Capacitors: Japanese 105°C-rated for stability
  • Compliance: ErP and Energy Star 7.0 ready
  • Warranty: 5-year warranty
  • Input Voltage: 100 ~ 240 VAC
  • Output: +3.3V @ 25A, +5V @ 25A, +12V @ 21-26A, +5VSB @ 3A, -12V @ 0.5A
  • Connectors: 1x 20+4-pin ATX, 1x P8 CPU, 1x P4+4 CPU, 4x 6+2pin GPU, 11x SATA, 4x PATA, 1x Floppy
  • Protections: OCP, OVP, UVP, SCP, OTP, OPP
  • Certifications: CE, CB, TUV, FCC, RCM
  • Dimensions: 150.0 x 160.0 x 86.0 mm
  • Weight: 1.84 kg

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
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  • be quiet
  • BN643
  • 64380943135105705850
  • New
  • 7.6 lbs
  • 5 X 5 X 5
  • Feb 19, 2026
  • Mar 31, 2020
Product Identifiers: Brand: Be Quiet • Part #: BN643 • UPC: 64380943135105705850 • Category: Power Supplies

Be Quiet BN643 ! Straight Power 11 Platinum 850W Fully Modular PSU

Reviews for Be Quiet BN643

$198.92