Real Power Pro 1250w
RSC50-EMBAD2-US (Discontinued)

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

For modern computing applications, users can't afford to rely on a second-rate power supply. That's why leading PC peripheral and accessory maker Cooler Master has developed the Real Power Pro 1250W Power Supply. Featuring quad GPU compatibility, an extra-long 5-year warranty, and an 87% efficiency rating, the Real Power Pro 1250W provides clean, efficient, and stable power for today's high-end systems.

The Real Power Pro 1250W comes with several features that bring it to the top echelon of power supplies. As the name implies, the Real Power Pro 1250W delivers 1250W of continuous power output, making it perfect for high-end computing rigs. Compatibility with NVIDIA SLI-ready certified configurations and two-way server systems is ensured with six +12V rails that ensure superior power distribution. Six 6-pin PCI-e power connectors offer great expandability, while three 8-pin PCI-e connectors means that the Real Power Pro 1250W is fully compatible with up to triple VGA cards!
  • World's first six +12V rails for better power distribution in Quad-SLI and 2 ways server system.
  • Six pin PCI-e connectors offer great future upgradeability.
  • Three 8 pin PCI-e connectors are compatible with future graphic card upgradeability.
  • Compliance with the newest Intel standard ATX 12V V2.3.
  • Compliance with the newest SSI standard EPS 12V V2.92.
  • Ultra-silent operation with intelligent 135mm fan speed control (<16dBA).
  • Eco-design for energy and money saving by Active PFC.(>0.99)/ high efficiency(>87%).
  • High Power Density (150*180*86 mm).
  • Power Failure Detector will light up when Over-Voltage,Under-Voltage, Over-Temperature, Over-Current, Over-Loading, and Short circuit occur.
  • Five-year warranty.

Certification NVIDIA SLI-ready / 80 Plus
Type ATX Form Factor 12V V2.3 / SSI standard EPS 12V V2.92
Dimension (W / H / D) 150 x 180 x 86 (mm)
Efficiency >85% Typically
Hold Up Time > 17 ms
Input Current 16A @ 115Vac / 10A @ 230Vac
Input Frequency Range 47 ~ 63 Hz
Input Voltage 90 ~ 264V (Auto Range)
Max. Output Capacity 1375 Watts
MTBF >100,000 hrs
Operation Temperature 0~50°C(Nominal Input Voltage)
Output Capacity 1250 Watts Continuous
PFC Active PFC (0.99)
Power Good Signal 100 ~ 500 ms
Protection OVP / OCP / OTP / OPP / SCP / UVP
Fan Ultra-silent 135mm fan with intelligent speed control
Connector M/B 24 Pin Connector x 1
CPU 4 Pin x 1
CPU 8 Pin x 1
PCI-E 8 Pin x3
PCI-E 6 Pin x 6
4 Pin Peripheral x 7
SATA x 8
4 Pin Floppy x 2
Warranty 5 years
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    • Click logo to read full review: : August 2008

      “From the appearance all power supplies make a very good stand and from the cable point of view they are all similar. The lengths are decent and the choice of connectors is also good. The Turbo Cool at 1200W is the lowest wattage unit on the field today, and it also has the fewest number of SATA and Molex connectors. We think that with 1200W you might want to have more connectors to choose from and not only six SATA and eight Molex - a few more would have been appreciated. Cooler Master is not looking too much better and has just two SATA connectors more and even one Molex less, but they do offer more PEG connectors. Tagan is top of the class you in this area with 12 SATA connectors, all of a decent length. All three power supplies have a decent amount of graphics card connectors and with these and it's hard to imagine anybody will have a problem.

      “Cooler Master has a better approach with a 12cm fan that is just pushing enough air into the power supply to cool all of the components…The fins of the heat sinks are thick but with enough space between them that air can reach even to the PCB.”

      The DC outputs were very good except for the Cooler Master which showed a few flaws. The voltage regulation functions very well, and even at the highest loads and with 10% overloading the three units stand their ground. In case of ripple and noise, we saw minor flaws with the PCP&C Turbo Cool where we measured fluctuations of up to 100mV on the 12V rail - this is still well within specs, however.

      “These prices make both the Tagan and Cooler Master a bargain since the prices will still surely fall during the first week of release.”

      » Details : August 2008

      Our friends at Cooler Master gave us a hand and provided the case and the PSU for this review. We used the Cooler Master Stacker 830 and the new Real Power Pro 1250W PSU as they were both of a caliber worthy of this system. This is a beast of a PSU and its power cord is industrial strength, no seriously it is like the cord from a high BTU air conditioner, big beefy and strong. There are numerous pin-type connections to be had, and enough for both dual SLI cards and CrossFire jobbers, including both the 6 and 8 pin connectors used in the new ATI 3870 X2. This PSU never failed us, even with all of our mods, VGA cards and multiple fans connected.

      » Details
      OCIA - Approved : August 2008

      The Cooler Master Real Power Pro 1250 is one of the small handful of power supplies in its class, and only one of ten on the market today certified by nVidia to power three geForce 8800 GTXs or 8800 Ultras. Six +12v rails (3 x 28A, 3 x 20A) are impressive indeed

      The PSU has a full compliment of cables, including eight 6-pin and four 8-pin PCI-E connectors to accommodate four video cards.



      At $329.99USD, the Real Power Pro 1250's price is in the lower 25% of power supplies over 1200 Watts. Yes, that sounds very expensive to most of us, but this is a PSU designed to power arrays of video cards costing over $1000, a trio of 9800GX2s runs nearly 2 grand. I'd have to consider this PSU a value.

      Awesome power capability
      Six +12v rails
      Price is lower than most power supplies of this size
      5 year warranty

      » Details

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