We have already reviewed quite a few PC Power & Cooling products on AnandTech, but this time we will be looking at their first series with modular cables and a white case. In contrast to older PSUs PC Power & Cooling delivered, this one provides a 120mm fan for cooling as well. The new Silencer MK III models are available in 400, 500 and 600W only. This is a good news for everybody who is interested in small power supplies as they deliver more than enough power for any common PC with one graphics card.

PC Power & Cooling uses Japanese capacitors, one powerful +12V output, a ball bearing fan from ADDA , and a partially modular cable management. With 80 Plus Bronze certification, the Silencer MK III seems to be an average product, but Seasonic is the company behind these products—and they're definitely a good choice. What about the internal design and components? On the following pages we will see if they meet one's expectations.

In this review we will compare two almost identical products from OCZ and Corsair. Even so, there are still some differences between the offerings. With 550W both PSUs deliver more than enough power for most current systems. On the following pages we'll find out which handle overload situations the best, who has the highest efficiency, and which PSU provides the best voltage regulation.

With sales of more than 100,000 PSUs each month, Corsair is one of the most important vendors for retail power supplies. They have a lot of experience even if they don't own a factory. In addition they are a leading manufacturer of SSDs and (good-looking) ATX cases. A few months ago Corsair presented the latest addition to their Enthusiast series. The TX brand has the goal of delivering low prices, quality, and high efficiency. Today we take a look at the TX550M 550W and find out if they meet the requirements. It's another solution with 80Plus Bronze, one +12V output and modular cables—quite common features.

Corsair TX550M vs. OCZ ZT550W 550W

The second unit we test today is a power supply from OCZ Technology Group. They're now famous for their SSDs, but they have many power supplies as well. We'll look at the OCZ ZT-Series ZT550W. OCZ is using an 80Plus Bronze design from Great Wall with a few changes in the details. The 80 Plus Bronze certification is standard for any decent PSU today, but maybe it's good enough to beat up Corsair. An advantage is the fully modular design, which is an uncommon feature for the mid-range price segment (except SilverStone's Strider Plus 500W).

Rosewill sent us their newest model Hive with 550W. The rated power makes these models good for most common GPUs as well as powerful CPUs. Features such as 80 Plus Bronze certification and modular cables are quite common these days, but such characteristics say little about how good a PSU really is. What about the internal design and components for example? Who built this PSU? On the following pages we will meet an old acquaintance with a new look and see if it's capable of keeping pace with the times.

NZXT is a well known provider of "eye-catching" cases and peripherals, but like many other brands they offer power supplies as well. These include the HALE90 series, their first 80 Plus Gold product to hit the market. While the HALE90 targets the high-end audience, NZXT also wants to cater to midrange users, and for that market they have their new HALE82 series that covers wattages from 650W to 850W. The rated output makes these models good for high-end single GPUs as well as moderate SLI and CrossFire systems. Features such as 80 Plus Bronze certification and modular cables are common these days, but such features say little about how good a PSU really is. Today, we're testing the 650W and 750W models, with our usual results on the following pages.

We interrupt the Computex 2011 coverage for a full review....

In early April, we tested one of Antec's larger HCG power supplies. Today we're looking at a smaller version with 520W unit. There are some differences between the 750W model besides the rated power output, so while we like the overall value the HCG-750 provides the HCG-520 needs its own review.

Previously, Antec has had other mainstream series before creating the HCG line, but this is the first time they've tried to jump on the "Gamer" bandwagon. Mostly, the name appears to be in reference to the aesthetics of the PSUs, as the other features are common in competing products. Highlights include the 80Plus Bronze certification, non-modular connection system, and Japanese capacitors. But let's not get bogged down in the details just yet; is the HCG-520 a good product or could it use some improvements?

Today we continue with the second part of our series of 750W power supplies. The Corsair TX V2 is the second 80 Plus Bronze certified PSU with non-modular cables that we're looking at for this range.

Corsair might be a leading manufacturer of RAM modules and SSDs, but power supply quality depends largely on the ODM and their design. The big question of the PSU source is easy to answer. Seasonic is the company behind many Corsair products—and they're definitely a good choice—but what about the internal design and components? On the following pages we will meet an old acquaintance with a new look and see if it's capable of keeping pace with the times.

"You get what you pay for!" Is this maxim realy true? On the one hand there are more than enough expensive PSUs with high ripple and noise results with a noisy fan thrown in as well; on the other hand, you can't get the best capacitors without paying a premium. So let's see how three different 550W power supplies compare, particularly in light of their pricing. There's quite a spread here in terms of cost; how much PSU can you get for your dollar?