Rosewill Capstone 750W Power Supply Review

Rosewill's products were generally known as a "Newegg House Brand" by many of us for a long time. It now sells through a myriad of different e-tailers and retailers. While we have never felt Rosewill was top of the quality heap when it comes to computer power supplies, we have never reviewed any either. That changes today.


Today, we look at another new product that is being sold by a company familiar to many HardOCP readers, Rosewill Inc., a subsidiary of Newegg since its inception in 2004. Newegg was founded in 2001 by it's then parent company ABS Computer Technologies who has been a part of the enthusiast computer market since its founding in 2001. The now defunct [H]Consumer covered a few of its fully built computer systems back in the day. Over the years, we have seen a few power supplies from the ABS/Newegg/Rosewill conglomerate branded by ABS. The Rosewill product portfolio, however, is much more complete than the few power supplies we have seen previously from ABS and it includes just about every peripheral you can think of. Today, we are looking at our first Rosewill branded power supply with the Capstone 750W (Capstone-750) produced by SuperFlower.

SuperFlower Computer Inc. is a name that may not be familiar to most of our US readers, but as a company SuperFlower has been designing and producing power supplies, and chassis, since 1991. In 2006, it expanded with the establishment of a new subsidiary factory, Jing Hua Co., Ltd, now handling its increased power supply production. While SuperFlower has not been a high profile OEM in the US, some of its products can be found branded by TTGI, MadDog Media, Kingwin, EVGA, and occasionally SuperFlower itself. One of the distinguishing points spearheaded by SuperFlower units was the inclusion of some of the first 140mm fans. While not historically found as the OEM behind ultra high end brands, SuperFlower has typically made good budget oriented offerings and it has produced a number of outstanding designs in the last few years.

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Stop and Smell the Roses?

Today's Rosewill Capstone 750W is the first power supply we have reviewed sold under the Rosewill brand. At 750 watts though, it is going to be facing competition from a lot of other brands that have much longer histories of making quality power supplies and much greater name recognition. As such, the Capstone 750W is going to have to truly shine if it is going to attract much attention of a good nature. Previous offerings from Newegg such as the ABS branded power supplies, however, have not exactly shined in our testing so that is somewhat of a concern today. Before we start too far down that track though, what does Rosewill have to say about this unit to allay some of those perceived fears:


آ• 80 PLUS GOLD Certified

آ• Continuous 750W@50آ°C

آ• Supports Intel Haswell CPU C6/C7 Low Power State

آ• Single strong 12V rail آ– idea for Gaming system

آ• SLI & CrossFire Ready آ– 4 x 6+2pin Connector

آ• 1x Silent 140mm Fan with Auto Fan Speed Control for better silence

آ• Active-PFC with auto AC-input voltage adjustment(100-240V)

آ• Black Coating Housing

آ• Mesh sleeving on all cables for easier cable routing and better ventilation

آ• Over Current/Voltage/Power Protection,

آ• Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components

آ• Safety & EMI Approval: cTUVus, FCC, CE, ROHS

Well, the generic list of features that we find on many truly generic products did little in the way to inspire confidence in this unit today. That said, we have often seen where talk is cheap as well in the PSU arena. Let’s move on and see what we can expect when a user purchases the Rosewill Capstone 750W power supply in retail in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.