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Rosewill CAPSTONE Series 750W 80 Plus Gold Certified ATX12V/EPS12V Power Supply CAPSTONE-750

4.5 out of 5 stars 184 customer reviews
| 28 answered questions

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750 Watt
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  • 80 PLUS GOLD Certified
  • Intel Haswell CPU Ready
  • Continuous 750W at 50 degree C
  • Single strong 12V rail - idea for Gaming system
  • SLI & CrossFire Ready - 4 x 6+2pin Connector
  • 1 x Silent 140mm Fan with Auto Fan Speed Control for better silence
  • Active-PFC with auto AC-input voltage adjustment (100-240V)
  • Mesh sleeving on all cables for easier cable routing and better ventilation
1 new from $265.61 1 used from $99.99

easychoice home laptop

Product Description

Size: 750 Watt | Style: Non-Modular

The Rosewill CAPSTONE series is a premium 80 PLUS GOLD certified power supply that delivers unprecedented performance, uncompromised features with unbeatable efficiency vital to today's high-end system. CAPSTONE's black coated casing and rock touch evoke a sense of high quality. It features active PFC with auto AC-input voltage adjustment (100 - 240V), mesh sleeves on all cables for easier cable routing and better ventilation, and one 140mm fan with auto fan speed control for efficient, silent cooling. An array of safety & EMI approvals including cTUVus, FCC, CE and RoHS ensures outstanding reliability, durability and eco-friendliness.

Product Information

Size:750 Watt  |  Style:Non-Modular

Technical Details

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Brand Name Rosewill
Item model number CAPSTONE-750
Item Weight 6.7 pounds
Product Dimensions 5.9 x 6.4 x 3.4 inches
Item Dimensions L x W x H 5.91 x 6.42 x 3.39 inches
Color Black

Additional Information

Customer Reviews
4.5 out of 5 stars 184 customer reviews

4.5 out of 5 stars
Best Sellers Rank #1,091 in Computers & Accessories > Computer Components > Power Supplies
Shipping Weight 6 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available November 21, 2011

Warranty & Support Return Policy:You may return any new computer purchased from that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here


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From the Manufacturer

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Peter D. Mar on September 14, 2013
Style Name: ModularSize: 750 Watt Verified Purchase
I bought this powerful 750 W gold rated power supply for my overclocked system. I've notice it runs cooler than my old Antec True Power 550 W unit.The 140 mm fan on this unit is very quiet and turns slowly even when heavily loaded. Everything is perfect on this unit except for one minor detail, then it has to do with the cabling for the graphics cards. It's fine for a single graphics card system utilizing both of the cables to hook up one powerful graphics card. But when you have two such cards, the weak link would be the sockets at the front of the power supply. Each cable for the graphics card has two separate six and eight pins plugs to connect the graphics card but on the other end that plugs into the power supply only has a single eight pin plug. On an extremely powerful graphics card that require two plugs for power, the plug on the other end may overheat and burn up. There are two such cables supplied. Lucky for me, I'm only intending to use only one such double extra power plug card in my system. This does not apply to the non-modular model. The semi-modular and in the non-modular model are identical electronic wise. The nonmodular one being cheaper to purchase.

The 12 V single rail supplies up to 744 W or 62 A which mean it supplies practically the full power of this unit minus the standby power supply section which supplies 3 A of 5VSB or 15 W independently. The 3.3 V at 24 AMP, 5v at 24 AMP and the -12 V at half amp are generated by using DC to DC modules from the 12 V single rail.

I did a stress test on my system to see how much the voltage on this power supply fluctuates. When my computer is idling the voltage is as follow: the 12 V rail was at 12.192V, 5V rail was at 5.2V and the 3.3V was at 3.376V under benchmarking with my system fully overclocked, the 12 V rail dip to 12.080V with the others remains essentially the same.
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Style Name: Non-ModularSize: 450 Watt
For the rated efficiency level, this is the best deal for a power supply at this wattage and ideal for most systems. Fan noise knocks it down a star for my purposes.

Rosewill is Newegg's house brand. This unit is sold in other countries as the Super Flower Golden Green. It has a 140mm fan, a rough matte black finish, non-modular cables, and a single-rail design that allows for 37A at 12V. Jonny of JonnyGuru has thoroughly reviewed the Super Flower equivalent, along with the 750W version in the Rosewill line. Google his review for comments on soldering quality, components, and hot and cold efficiency tests.

The five general parameters for a PC power supply are efficiency, wattage, noise, size, and cable modularity.


Fifteen years ago, most power supplies were about 70% efficient. For a 100W load, they would draw about 140W from the wall. Not anymore. We now have five major PSU ratings: 80 Plus and 80 Plus Bronze, Silver, Gold, and Platinum. These correspond to half-load efficiencies of 80%, 85%, 88%, 90%, and 92%. Efficiencies at 1/5 and 4/5 load are about 4% less than half-load.

This is an 80-Plus Gold unit capable of 90% efficiency. Relative to a Bronze unit, for a 24/7/365 system draw of 100W, you could expect to save about $6 a year in power costs at $0.12/kWH. Efficiency has other benefits: namely, every watt that isn't going the system is dissipated as heat by the PSU. Less efficient units require a bigger or faster fan, which makes more noise.


This is a 450W unit. PSU fans generally run at idle speed until actual draw is about half the rated wattage. After that, the fan (and noise) ramps up. Optimal efficiency occurs at about half the rated capacity.
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Style Name: ModularSize: 750 Watt Verified Purchase
We were hesitated at first from reviews that said the fan in this unit is loud, and were about to go with a much more expensive $200+ unit. But after acquired it and installed and connected to the system and power up, its fan is VERY quiet. So if you are still not sure and worry about the fan's noise, don't worry anymore, go for this one and you will not be disappointed. One thing to mention, silly us (me helping my teen son), not sure which port to connect the cables to the SATA drives and the graphic card, because none of the ports in the back side of the unit were marked. We had to uninstall the unit then inspected each one of those ports and found they are all the same (having the same number of pins in all of them ports). After we were happy, reinstalled the unit and just plugged any cable to any port, they all power up and work fine. The mesh screen matched the HAF-X case making it looked very nicely!
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Style Name: ModularSize: 650 Watt Verified Purchase
Just installed this in a new build and no problems. Plenty of power to run the new system (i5-3570K, GeForce 660) and good price. The only minor complaint and not really a complaint, is that the SATA cables weren't quite long enough to allow me to use just one to connect the drives, so I had to use two. Other than just adding a slight bit of clutter to the build, it wasn't an issue. Overall, this is a great buy, and equal to the Corsair 750W I have in another build, but for less money.
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Style Name: ModularSize: 750 Watt Verified Purchase
i purchased this unit (750-m capstone) after i read a few reviews from jonnyguru and techpowerup that reviewed this psu. they praised it highly and recommended it and finding out who its actually manufactured by it had me sold.

don't let a house brand fool you. even though rosewill is newegg's brand, this unit is not produced by newegg. rather, like corsair, evga, antec, cooler master, and such, its outsourced to a third party oem. this particular unit, and the entire capstone series, both modular and non, is manufactured by superflower. superflower is a top tier power supply manufacturer that produces some of the best power supplies you can get. you will find many of their units housed in brands such as antec, evga, pc power and cooling ,and the like.

it has everything you would except in this day and age. its semi modular. meaning that everything except the cpu power cable and motherboard cable is modular. considering you have to connect the cpu and motherboard power cable, its extremely understandable why those are built in and not an issue.

for its cooling it uses a 1,200 rpm, 140mm, ball bearing adaptive fan manufactured by global fan. its speed is controlled by the temperature of the psu. the warmer it gets, the faster it moves. even at a heavy load the fan is very quiet, far more quiet the fans on my nh-d14 and gigabyte windforce 770. also since it's a ball bearing and not a sleeve this fan will last a long time even at high temperatures.

it uses all high quality japanese capacitors manufactured by nippon chemi-con. not poor quality chinese ones that like to either catch fire or blow up.

voltage, ripple, and stability is fantastic.
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