We have high-performance with the dual 12volts rails with 20 AMPs per rail, modular design for cable management and low noise due to a silent fan with smart fan technology. It's really good to see the two 12V rails. Two of these you'll need if you ever plan to do some SLI/Crossfire gaming.

Example: a single GeForce 7900 GTX graphics card can peak towards 10 AMPs alone.

Overall product features:

More Power.

Taken from the Be Quiet website: Dark Power Pro will never let your PC down, it develops optimum power, and is once again setting new standards in terms of noise emissions, quality, economy and voltage stability. You'll be particularly pleased with the numerous advantages of its three superlative performance packages: Top Efficiency, Thermo-Control and Service Plus. Removable cables and Intel ATX 12 V 2.2 are, of course, standard features.

Thermo-Control Package

• The fan follow-up control unit (ECASO) offers reliable protection to your hardware (sensitive components such as graphic cards or hard disks) against overheating. The PSU fan as well as the fans connected to the power supply unit will continue to run for 3 more minutes after power has been switched off.
• The thermo-electronic system regulates the speed of the PSU fan, as well as the speed of 3 additional case fans directly connected to the power supply unit. As a result, sound effects are also reduced within the system as a whole.
• The tacho-signal from the PSU fan can be read off via the mainboard.

Top Efficiency-Paket

• Extremely high efficiency of > 80% at loads of 50% for reduction of your electricity expenses.
• Active PF with PF of up to 0.99 for stabilizing and enhancing output voltage values.
• The power supply unit is manufactured in line with ROHS Guidelines.
  Service Plus-Paket
• 3-year guarantee
• including 1 year with free replacement service at site within 48 hours free domicile at the end user’s premises
• a free service hotline 0800-0736 736 (within Germany).)

Power Factor Correction - PFC

The PSU we tested was model BQT P6-Pro-600W, I mention this specifically as this model has a very nice feature called active PFC. To put it in simple terms, Active PFC PSUs are more expensive and from a power consumption point of view more efficient. Power Factor Correction (PFC) allows power distribution to operate at its highest efficiency.

There are two types of PFC, Active PFC and Passive PFC. This PSU has active PFC. Active PFC uses a circuit to correct power factor, Active PFC is able to generate a theoretical power factor of over 95%. Active Power Factor Correction also markedly diminishes total harmonics, automatically corrects for AC input voltage, and is capable of a full range of input voltage. Since Active PFC is the more complex method of Power Factor Correction, it is definitely more expensive to produce an active PFC power supply.

Right, allow me to commence with both the beginning and the end results straight away. Ladies and gentlemen .. it's time to start the the sexy photo shoot.