Antec Signature 650W Review

Power Supplies, Reviews

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Antec Signature 650W Power Supply


This review is the start of a group test of power supplies that we’ll be conducting out over the next few weeks. The PSU up for analysis today is the Antec Signature 650W. An 80mm PWM fan and a Bronze 80 Plus certifications are just two of the features this power supply unit entails. Antec have boasted this PSU model as having the latest in stability, quiet cooling and reliability, does it? Well read this review and you’ll find out…

About Antec

Antec Inc. is the leading global brand of high-performance computer components and accessories for the gaming, PC upgrade and Do-It-Yourself (DIY) markets. Founded in 1986, Antec is recognized as a pioneer in these industries and has maintained its position as a worldwide market leader and international provider of efficient, quiet, and reliable products. Antec has also achieved great success in the distribution channel, meeting the demands of quality-conscious system builders, VARs and integrators.


  • NVIDIA™ SLI™-ready certified
  • DC to DC Voltage Regulator Modules ensure supreme system stability
  • 80 PLUS® Bronze Certified – 82% or more efficiency at 20%, 50%, and 100% load
  • 80mm cooling fan uses Pulse Width Modulation (PWM) for whisper-quiet operation
  • Advanced hybrid cable management improves airflow and reduces clutter
  • Dual density PC board layout provides better airflow, reduces electrical noise, and allows heavier components
  • Highest quality Japanese fan and capacitors ensure long-term reliability
  • Industrial grade protection circuitry prevents damage resulting from short circuits (SCP), over voltages (OVP), over power (OPP), over temperature (OTP), and over current (OCP)
  • Universal Input and Active PFC allow the Signature 650 to operate efficiently on any power grid in the world
  • Safety: UL/CUL, TUV, CE, CB, CCC, FCC Class B, C-Tick
  • AQ5 – Antec Quality five-year parts and labor warranty
  • MTBF: 100K Hours Min At Max. Load 230Vac And 25°C Ambient Conditions
  • Unit dimensions: 3.4″ (H) x 5.9″ (W) x 7.1″ (D)
  • Package dimensions:• 11.8″(H) x 8.8″(W) x 6.4″(D)

    • 29.98cm(H) x 22.35cm(W) x 16.26cm(D)

  • Weight:• 5.82 lbs / 2.64 kg


PSU Specifications