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Cooler Master GX - 750W 80 PLUS Bronze Power Supply (RS750-ACAAD3-US)

4.6 out of 5 stars 122 customer reviews

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750 Watt
  • High efficiency design that meets 80 Plus requirements (85% typical)
  • High reliability (MTBF >1000,000 hours)
  • Double layer EMI Filter restrains noise and injury to end-user
  • Ultra-silent operation with intelligent 120mm fan speed control
  • Five-year warranty
1 used from $79.99

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Technical Details

Size: 750 Watt
  • Brand Name: Cooler Master
  • Model Number: RS750-ACAAD3-US

Product Description

Size: 750 Watt

Product Description

The Cooler Master GS Series power supplies stand for Gamer Xtreme, the evolved version of Extreme Power Plus. With up to 60 amps on a single rail, there is enough power to start up a truck, imagine what it can do for your system. With so much power at your disposal, Cooler Master ensures the most stringent safety standards are met. The extended 5 year warranty is included to give you further piece of mind.

From the Manufacturer

Cooler Master GX Series 750W ATX 12V V2.31 80 PLUS SLI Certified Power Supply RS750-ACAAD3-US
The Cooler Master GX Series power supplies stand for Gamer Xtreme, the evolved version of Extreme Power Plus. With up to 60 amps on a single rail, there is enough power to start up a truck, imagine what it can do for your system. With so much power at your disposal, Cooler Master ensures the most stringent safety standards are met. The extended 5 year warranty is included to give you further piece of mind.


  • Compliance with the latest Intel standard ATX 12V V 2.31.
  • Single +12V rail for the most demanding SLI configurations.
  • High efficiency design that meets 80 Plus requirements (85% typical).
  • Ultra-silent operation with intelligent 120mm fan speed control.
  • Multiple protection design (OVP/UVP/OPP/OTP/SCP).
  • High reliability (MTBF >1000,000 hours).
  • Double layer EMI Filter restrains noise and injury to end-user.
  • Huge bulk capacitor for hold up time >17ms at full loading.
  • Integrating Active PFC with PWM combo controller not only make PFC higher than 0.99, but also raises efficiency.
  • Efficient transformer for reducing 5Vsb power loss when the system is at turn-off and sleep modes.
  • Five-year warranty.


Model RS750-ACAAD3-US
Type Intel Form Factor ATX 12V V2.31
PFC Active PFC (>0.9)
Input Voltage 90-264Vac (Auto Range)
Input Current 10A@115Vac, 6A@230Vac
Input Frequency Range 47-63Hz
Output Capacity 750W
Max. Output Capacity 900W
Fan 120mm
Power Good Signal 100~500ms
Hold Up Time >17ms
Efficiency 85% typical
MTBF >100,100 hours
Protection OVP / UVP / OPP / OTP / SCP
Dimension 150 x 140 x 86, (5.9 x 5.5 x 3.4 inch)
Operation Temperature 0~40 °C (Nominal Input Voltage)
Regulatory TUV / CE / UL / FCC / BSMI/ GOST / C-tick / CCC / KCC
Certification 80 Plus /SLI
Connector 20+4 Pin MB x1
4+4 Pin CPU 12V x 1
6+2 Pin PCI-e x2
SATA X9
4 Pin Peripheral x3
4 Pin Floppy x1
Warranty 5 year
UPC Code 884102007590

Product Information

Size:750 Watt
Product Dimensions 5.9 x 3.4 x 5.5 inches
Item Weight 5 pounds
Shipping Weight 5.4 pounds
Manufacturer Cooler Master USA, Inc.
ASIN B0035WTD2Q
Item model number RS750-ACAAD3-US
Customer Reviews
4.6 out of 5 stars 122 customer reviews

4.6 out of 5 stars
Best Sellers Rank #1,382 in Electronics > Computers & Accessories > Computer Components > Power Supplies
#9,949 in Electronics > Computers & Accessories > Laptop Accessories > Chargers & Adapters
Date first available at Amazon.com January 20, 2010

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 750 Watt Verified Purchase
Cooler Master is by far exceptional when it comes to cooling products, so i wasn't to sure when it came to purchasing a PSU. I need to power an over clocked i7 920 running at 3.6 Ghz along with a GTX 470. My old Power Up running at 450w wasn't cutting it and i already had a bad experience with a cheap brand (Never again!). Came really fast with 2-Day prime shipping ordered it Friday afternoon and got it Monday After noon. Installation was easy came with seethed cables 4x6pin connectors which is a great attribute when you want to SLI your video cards which is also a good sign knowing it can push that much power. As always stays cool and really quiet im glad to say i made this purchase unlike the PSU i had purchased before. This is a great Mid range PSU it wont let you down and it hasn't let me down yet been running it for about 5 days and hasn't given me any issues. If this isn't for you just make sure you buy a name brand PSU and always check for that 80 plus cert so you know its always going to have the guarantee that it will push.
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Size: 750 Watt
I got this when I was building my new rig in July. I like the appearance of the metal case of itself, because I like blue and black, but the cables are not adequately sleeved. Maybe that is just me, but I don't like how you can see through the crummy sleeving to the red, yellow, green, etc. wires. One other thing that also bothers me a bit is how they only have 3 molex connections. I know molex is being phased out, but so many fans, pumps, and fan controllers still use molex, and if you try and put that all onto 3 connectors, splitters will be needed. Other than that, this PSU is extremely reliable, silent, and high-quality. It has 9 SATA power connections, which is most likely more than you'll need. It runs an i5 750 @ 4GHz, a GTX 470 @ 825/1650/1000, a 12v water cooling pump, and everything else in my system without a sweat. It's a great PSU and I'd recommend this to everyone that needs something in this wattage range.
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Size: 750 Watt Verified Purchase
I was hesitant to buy this power supply at first, but I don't know why I was worried. This power supply is incredibly silent! I was wondering if it was even on at first, but sure enough it was on. The fan on it is thermally controlled so it wasn't on full bore like my last power supply. I went from a generic 500 watt to this silent monster. Not to mention it comes with a five year warranty and it is 80 plus certified. I can sleep with my computer on without it keeping me awake now! I am very happy with my purchase and you will be too!

P.S. I ordered it around midnight on a Wednesday and got it Friday afternoon! It came to my place much quicker than I expected and I only paid for standard shipping!
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Size: 750 Watt Verified Purchase
The first thing I want to address is the noise issue. Other reviewers say that power supply gets loud when doing complex/power-hungry tasks. Please note, however, that the sound they are talking about is NOT the hum or electric buzz associated with cheaper power supplies. The sound that DOES get louder is the fan pushing the air around. Frankly, it is not bothersome to me and it a whole lot quieter than any other power supply. You won't hear any electric buzzing.

The second point I want to talk about is cord length. I was a little concerned that the cord length would not be long enough for my ATX case with cable management. However, it was more than adequate and definitely a lot longer cords than any other Power supply I have had.

Breakdown
- Sounds : 9/10 (The fan on this PSU will speed up or slow down depending on the tasks you are doing. The sound is not that loud and consists only of the sounds of moving air)
- Cord Length : 10/10 (I was surprised this PSU had ample cord length for my ATX case with cable management.)
- Customer Service : 8/10 (Nothing surprising here. You call with a problem, wait a little for a service rep, and get it fixed. I have not tried claiming the Warranty because this PSU has had no problems. The simple fact that someone actually answers the phone is a HUGE benefit over the other PSU suppliers who never answer nor honor warranty.)

EDIT ON 8/15/2013
A year and a half later, this PSU is still in use. I have actually upgraded my graphics card, motherboard, and CPU since then yet I still use this great power supply! I am truly impressed, it still runs as quiet as the day I got it and I have no problems at all with it.
Read more ›
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Size: 750 Watt Verified Purchase
I just built a new PC and I wanted a good power supply with enough wattage to keep it working efficiently. This power supply is a great price and the reviews here on amazon convinced me it was solid enough to keep the expensive components safe. Here is what I built:

Intel Core i7-2600K Processor
Corsair Vengeance Blue 16 GB DDR3 SDRAM Dual Channel Memory
Crucial 128 GB m4 2.5-Inch Solid State Drive SATA 6Gb/s
EVGA GeForce GTX 560 Ti Superclocked 1024MB GDDR5 PCI-Express 2.0
Intel Mobo DZ68BC
Blu-ray burner
2TB Hard Drive

Pros:
The power supply is quiet and provides steady wattage
Great price for 750W!
Plenty of connectors for all of my parts

Cons:
I think I was spoiled by my last power supply but I love being able to plug in the connectors you need..this power has all of the connectors permanently attached. To be fair I think 95% of power supplies are like this so its a fairly small con.
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