Silent Pro M 600W
RS600-AMBAD3-US / RS-600-AMBA-D3

Disclaimer: Displayed parts and accessories may not be included in the actual product package.

Silent Pro series is a new range of single rail power supplies from Cooler Master that's addressing a growing market demand for powerful single rail PSU. With up to 40A on the 12V rail, the Silent Pro series delivers where it counts and won't have any problems powering even with the most demanding SLI or CrossFire systems.

The Silent Pro series is also the first power supply from Cooler Master to feature flat modular cables for improved airflow and cable management. It also comes with anti-vibration silicon pads to remove possible vibrations from the PSU to reverberate into the case.


  • Up to 40A on a single +12V rail.
  • Eco-design for energy and money saving by Active PFC.(>0.9).
  • Flat modular cables to eliminate clutter and improve chassis airflow.
  • Two 6+2 pin PCI-e connectors for multiple high-end graphic card set ups.
  • Japanese-made capacitors.
  • Energy efficient design that meets 80 Plus requirements.
  • Intelligent 135mm fan speed control.
  • Hybrid copper plus aluminum heat sink.
  • Anti-vibration silicon padding.
  • Protection: OVP / UVP / OCP / OPP /OTP / SCP / OLP.
  • High Power Density (150*150*86 mm).
  • High reliability (MTBF > 100,000 hrs).
  • Compliant with Intel standard Intel ATX12V V2.3 & SSI EPS 12V V2.91.
  • Five-year warranty.

Model RS600-AMBAD3-US / RS-600-AMBA-D3
Type ATX 12V 2.3 / SSI EPS 12V V2.91
Dimension 150(W) x 86(H) x 150(L) (mm)
5.9 (in) X 3.3 (in) X 5.9 (in)
Input Voltage 90~264V (Auto Range)
Input Current 10A@115Vac,5A@230Vac
Input Frequency Range 47~63Hz
PFC Active PFC >0.9
Power Good Signal 100~500ms
Hold Up Time >17ms
Efficiency 85% Typically
MTBF >100,000hrs
Output Capacity 600W
Max. Output Capacity 720W
Operation Temperature 0~40 C (Nominal Input Voltage)
Regulatory NEMKO/TUV/CE/GOST/C-tick/UL/FCC
Fan 135mm ultra silent fan
Certification SLI Ready & 80 Plus
Connector M/B 20+4 Pin Connector x 1
CPU 4+4 Pin x 1
PCI-E 6+2 Pin x 2
4 Pin Peripheral x 5
SATA x 9
4 Pin Floppy x 1
Warranty 5 years
    • Click logo to read full review:
      HardwareSecrets: Golden Award : February 2010

      "We are happy to be wrong! It delivered high efficiency between 83.4% and 86.6% most of the time (at full load efficiency was at 81.0%), the main voltages were always within 3% of their nominal values (ATX12V specification allows them to be up to 5% distant, so this mean that voltages were closer to their nominal values than required) and noise and ripple was always low. Sweet!"

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      Techarkade: Golden Ghost Award : October 2009

      "All-in-all I am very pleased with the product Cooler Master has put out. It performs astoundingly and is very quiet, yet at the same time doesn't create all that much heat."

      » Details  Editors Choice : October 2009

      "We are very impressed with Cooler Master’s Silent Pro 600 M PSU.  It does more than it is advertised to do and we have been testing it under the most severe gaming conditions for well over a month."

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      PCWizKid: Recommended : April 2009

      "Top of the line from Cooler Master comes the Silent Pro M series of PSU which focuses on efficiency and silence.  As shown in the video review, the innovative flat modular cable design, quiet fan and efficiency results give this a well rounded premium score in PCWizKid's books.  This is definitely a PSU worthy of a mainstream gaming system that enthusiasts can count on."

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      TopReviewsShop: On-Target Award : April 2009

      The noise from the PSU is practically non-existent. In my test rig you can't really hear the fan at all and the rubber mounts in our case kept vibration to a nil. I would assume that the silicon grommet would have the same effect in a case that did not already have built-in rubber vibration negation pads. So, marketing claims can be put aside - the name "Silent Pro" is factual for this PSU. The Cooler Master Silent Pro M 600 is an excellent PSU for use in any home PC, office PC or even small server systems. It proved to be completely reliable in this gamers rig. It is a very sporty looking power supply and provides ample power for today's power hungry computer systems. It runs virtually silently and does not introduce much heat to the system. It cools itself efficiently and quietly.

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      V-hideout: Approved & Recommended : February 2009

      "In fact, the PSU produced about 690 Watts steady without voltages going below their specification. The 3.3V and 5V varied by .1 volt at any given time. The 12V rail held true at 12.04 volts right up to the shut down point......CM rates it at a typical 85% efficiency, but this test system experienced at least 92.6% at 600 Watts. Even above spec load, the efficiency was about 88%......The Silent Pro M 600W is like a "sleeper" hot rod PSU hiding underneath that cool, black exterior."

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      Jonnyguru: Recommended : February 2009

      "Cooler Master has something here in the Silent Pro M 600W. What they have is a nice, well performing, efficient power supply that doesn't make a lot of noise. As most other units I've looked at there are some drawbacks like the cheap group regulated design and the not so stellar performance in the overshoot transient testing, but things like the above average regulation for a group design and the awesome ripple suppression goes a long way. Would I buy one of these? Yes I would."

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      Techaddicts: Great : February 2009

      "This power supply would be ideal for anyone looking to build multi core gaming / workstation system with two video cards.  It features SLi Readiness and 80Plus certification.  Currently, this power supply is not listed in Nvidia's SLi Zone website, but I'm sure that this power supply can handle the newer the GeForce's in SLi, as long as each card uses only one PCI-e power connector. There is an adequate amount of power connectors, as well.  I like the ribbon style cabling that the modular cables feature, they are colored black and blend nicely within a computer case."

      » Details great product : January 2009

      "I'm very impressed with Cooler Master's Silent Pro M600W. Here's a quiet, compact, high-quality PSU with flat modular cabling, high efficiency and a five-year warranty from an established company. Cooler Master also includes silicone vibration gaskets and black mounting screws. So what's not to like? If 600 watts is sufficient for your system needs, (this will easily satisfy the demands of most systems) you'd be hard pressed to find a better choice than this Silent Pro."

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      OCIA - Approved : December 2008

      "The Silent Pro M hangs with some of the finest power supplies in many ways, including noise level, thermal performance, and electrical performance. It is uncommonly good, however, in its implementation of cabling, included bundle, and overall design."

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