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PC Power & Cooling Signature Series

Silencer® MK III

by FirePower

Semi-Modular High Performance, Ultra-Quiet Design

MSRP Starting at $169.80

Power Supply Units


Technical Specifications

Model Numbers
AC Input
Voltage Range:115 - 240 VAC
Current Rating:750W / 850W - 10A 1200W - 15A
Frequency:50 / 60Hz
Efficiency:750W / 850W - 90% typical load (80+ Gold)
1200W - 92% typical load (80+ Platinum)
DC Output
750W:+3.3V@24A, +5V@24A
+12V@62A, -12V@.5A
850W:+3.3V@24A, +5V@24A
+12V@70A, -12V@.5A
1200W:+3.3V@20A, +5V@20A
+12V@99.5A, -12V@.5A
Regulation:3% (+3.3V, +5V, +12V)
5% (-12V, +5Vsb)
Protection:OPP, SCP, UVP, OVP
Motherboard:20+4 pin ATX,
2 x 4+4 pin CPU
Video:750W -
4 x 6+2 pin PCI-E
850W / 1200W -
6 x 6+2 pin PCI-E
Drives:12 - SATA
4 - Peripherals
Operating Temperature:0 - 50°C
MTBF:100,000 hours
Warranty:7 years
Agency Approvals
Safety:cTUVus, TUV, CB


The Silencer MkIII and its award winning Silencer core architecture define the ultimate power management solution for today’s PC power users. FirePower customers can enjoy the almost 30 year heritage of our flagship line of Silencer power supplies featuring rock solid and stable power with ultra-quiet operations and a modular cable design with high performance metal aviation conectors, for a streamlined operating environment. The Silencer MkIII balances the needs of enthusiasts and professionals by combining a powerful single +12V rail and premium grade capacitors.

But the Silencers secret weapon is its ultra quite operation. The Mk III sports a new Dual Thermal Control System, a sophisticated operation that allows the PSU to switch between normal and silent mode seamlessly. Backed with PC Power’s complete confidence in reliability with an industry-leading 7 year warranty, this PSU offers ultimate peace of mind.

Awards & Reviews

CPU: Computer Power User

As you can further deduce from the power supply’s name, the Silencer MkIII 1200W speaks softly but carries a 1,200-watt stick. (Those 1,200 watts have been subjected to a torturous 50 degrees Celsius, too, so the power supply is more than capable of dealing with the rigors of enthusiast use.) Thanks to FirePower’s Dual Thermal Control System, the Silencer MkIII is able to instantly switch from silent to normal mode as loads dictate. The PSU’s 140mm double ball-bearing fan can also adjust its speed according to load and temperature, so this power supply will never be louder than it needs to be.

Funky Kit

Even at full blast it's a quiet fan, I think this is the quietest PSU I have ever tested, even comparing it at 50c and 1200w to others at cold ambient and full load.

ITN Daily (Russia)

The Silencer Mk III performed very well with stable results throughout our tests. It is very suitable for systems that use SLI or CrossfireX GPUs.

NoName (Russia)

The best choice for the modern user.

Hi-Tech Legion

Overall, the PC Power and Cooling Silencer Mk III 1200 Watt power supply is a fantastic PSU. There is a ton of power and it runs extremely efficient. The Silencer Mk III has the reliability of industrial grade protection circuitry and a 80PLUS Platinum rating.

ZOL (China)

Silent yet high performance! MKIII 850W is an excellent choice.


The Silencer MK III 750W PSU is boasting a very good voltage regulation within its power spectrum along with very clean DC output. fan noise is low and the PSU's efficiency is high.

Computer DIY

With stringent 80-Plus Platinum certified rating for the highest energy efficiency possible, Japanese 105°C capacitors and heavy-duty protection circuitries all makes Silencer Mk III to be the biggest player in providing a steady system!

VModTech (Thailand)

This MK III 850W is definitely one of the best PSUs without question. The performance is fantastic and stable.

Dreamware Computers

Based on what we've seen from the build quality, component quality and performance, it goes without saying that the PC Power & Cooling 'Silencer' series is a premium quality power supply.