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Cooler Master Cosmos C700P Full-Tower Chassis Review (Page 1)

Cooler Master Cosmos C700P Full-Tower Chassis Review

Cooler Master's Cosmos C700P E-ATX full-tower chassis is easily one of the best, if not the best, computer cases we have ever reviewed.

Chad Sebring | Sep 28, 2017 at 10:00 am CDT - 8 mins, 1 sec time to read this page
Rating: 100%Manufacturer: Cooler Master

Introduction, Specifications, and Pricing


Nearly a decade ago, we had a look at the very first incarnation of what was to become a trademark design for Cooler Master, The Cosmos chassis. Back then, there was nothing like it on the market, and Cooler Master was, and likely still is, making a killing on something that came to mind so many years ago. While there have been many iterations of the Cosmos chassis over the years since, all of them adding new features or fixing issues that customers had discovered along the way, has now culminated in what we feel is the sexiest and best-engineered designs of them all. With years of practice, Cooler Master has finally done it, as what you are about to see is indeed perfection personified in a chassis.

While we could easily go through the fact that the first version, while innovative and outrageous at the time, did have its downfalls, we won't. We could also go through and pinpoint all of the things that have changed along the way, but we aren't. However, the reality is that the newest version of this design has so much going on we honestly do not have time for a history lesson. What you are about to see is spectacular. Not only has Cooler5 Master perfected the exterior after all this time, but they have come out guns blazing with one of the most original interiors we have ever seen, ever. To put it simply, I have been sporting the SilverStone Temjin TJ 11 for nearly five years, as I have not yet found a chassis to beat it. That was until I got elbows deep inside of this Cosmos chassis, and realized a new king has arrived to claim the throne, even if just on a personal usage level.

Cooler Master and their newest Cosmos C700P full-tower chassis bring forth something that every chassis builder, any modder, and anyone with a stack of cash waiting for something to blow their mind, to pay close attention to this case. Not only is the exterior appeal stunning, with new flat handlebars, which used to be round, the front I/O panel is updated to today's needs too. There is a dual-curved tempered glass panel with no visible mounting points, and added RGB lighting in the design will make this chassis fit any need, and also connects to just about any motherboard with RGB lighting applications. The interior, well that is something we have never seen before. The layout is modular, which delivers an internal design which is typical to an ATX chassis at first, but there is more to come. The motherboard tray can be oriented at ninety degrees for a chimney effect, but it can also be inverted, where the front and the back of the Cosmos swap ends. What aids in all of this is an interior which is screwed together, allowing the bays, supports, covers, motherboard tray, and all other internal panels to be rearranged to suit whichever internal layout works best for you. If we do not have your attention at this point, check for a pulse, as this is the most astounding chassis Cooler Master has ever made and is the most modular design we have ever had our hands-on.

Cooler Master Cosmos C700P Full-Tower Chassis Review 01 |

In the specifications chart provided by Cooler Master, we see that this version has a quite lengthy part number, as it is also addressed as the MCC-C700P-MG5N-S00. The Cosmos C700P is designed externally with bits of gunmetal gray, but the majority of the surfaces are black. Comprising the components of this chassis, we see aluminum and steel are used, as well as a few bits made of ABS plastic, but this is the first Cosmos to sport a tempered glass side panel. All told, this chassis is massive, where it is 651mm tall, 639mm from front to back, and is it 306mm wide. There is no mention of weight, but the shipping label says 58 pounds, and we do know this chassis can house mini-ITX, Micro-ATX, ATX, and E-ATX motherboards no bigger than twelve by eleven inches. The front I/O panel offers a single USB 3.1 Gen 2 Type-C port with a new internal connector, there are four USB 3.0 ports, and the chassis provides fan speed and RGB buttons, along with the HD audio and power and reset buttons.

Inside of the chassis, there are eight expansion slots, one 5.25" bay, a pair of trays for 3.5" or 2.5" drives, and two 2.5" drive locations as well. There is 198mm of room to clear the CPU cooler, there is 320mm of room for GPUs with the bays in place, and 490mm of room without them in the chassis. The PSU can be of any length, as there is nothing to block it or any of the wires that will be hidden under a PSU cover, which is one of the two-part cover system, the second of which covers the entirety of the bays from top to bottom.

Cooling in the Cosmos C700P is quite extensive as well. The top of the chassis will support a trio of either 120mm fans or 140mm fans, and this fan tray can also be moved to the bottom of the chassis to aid in situations where the interior layout is changed. The front of the chassis mimics the layout of the top panel, where it will house three 120mm fans or 140mm fans, but out of the box, a pair of 140mm fans are preinstalled. The back of the chassis can hold a single 120mm or 140mm fan, and this is where we found the third 140mm fan that was already installed. Liquid cooling support allows for up to a 280mm or 360mm radiator in the top of the chassis, or a 120mm, 140mm or 240mm radiator if it is moved to the bottom. The front of the chassis can support up to 360mm and 420mm radiators, but the drive bays will need to be removed for depth clearance.

With all of the things offered in the Cosmos C700P and the fact that there has not been a single Cosmos to be released that we would consider being in the low-price segment of the market, it is no shock to us that the price is what it is. We are shown in the reviewer's guide, that when the Cosmos C700P releases on the 28th of September, the MSRP has been set at $299.99. While that alone may scare many buyers away from such a chassis, those looking for the next best thing to hit the chassis market will appreciate the pricing. You are getting one hell of a deal after considering everything the Cosmos C700P is capable of, and we are confident that the aesthetics are on point, even more so than any Cosmos before this, and they have all been wildly successful. If you do not have this sort of money at the ready, we urge you to start pinching pennies, because Cooler Master just made the most amazing chassis we have ever seen. After reading this, we are positive that even the most discerning customer will fall in love with the Cosmos C700P, and want one of their very own.

Chad's Chassis Test System Specifications

Last updated: Nov 15, 2019 at 01:16 pm CST

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Chad Sebring


After a year of gaming, Chad caught the OC bug. With overclocking comes the need for better cooling, and Chad has had many air and water setups. With a few years of abusing computer parts, he decided to take his chances and try to get a review job. As an avid overclocker, Chad is always looking for the next leg up in RAM, cooling, as well as peripherals.

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