Corsair Carbide 678C review

PC Cases and Modding 229 Page 3 of 12 Published by


Product showcase – exterior

One of the side panels is made of tempered glass, and the other one (on the motherboard tray side) is solid. We’d like to remind you of the basic specs here. The body is black, which is the most universal color. At 549mm x 239mm x 497mm (L x W x H)/21.61 in x 9.41 in x 19.56 in), the size is a bit above the average for today’s standards. The following motherboard form factors are supported:

  • E-ATX,
  • ATX,
  • M-ATX,
  • Mini-ITX


The chassis is very stable, and the tempered glass panel is mounted on hinges. When you look at the top (from the front perspective), you won’t see any vents for air coming in/out of the chassis. 


At the back, you can see a similar approach. The design is focused primarily on silence, and the rear fan mount allows for some height adjustment. 


The manufacturer provides users with three Corsair SP140 PWM fans (unfortunately not from the ML series). The specification for them is listed below: 



Quantity Included


Speed (rpm)

400 - 1200 +/- 10% RPM

Airflow (@ max rated speed)

73.1 CFM

Static Pressure

2.08 mm-H2O

Sound Level

21.9 dBA

PWM Control


Below, we can see 7 horizontal and 2 vertical expansion slots, so in a traditional (horizontal) setup it’s possible to have dual-slot cards in Crossfire or SLI mode. The PSU frame is not removable. It’s a pity because it would have made it easier to install a unit. The rear fan mount is not fixed, so it is possible to adjust the 120/140mm fan/radiator mounting height. 


When you look at the bottom part, you’ll find feet that have been rubberized to prevent unwanted movement of the chassis on the floor. The provided dust filter covers the entire length of the chassis. It’s easily removable (pulled to the front) for maintenance. It also allows the PSU to catch a breath.


You'll find a standard I/O panel on the on the top (like in most cases nowadays). It consists of a standard set of two USB 3.0 ports, a single USB 3.1 Gen2 Type-C port (that’s rather a must these days for higher-end chassis), reset and power buttons, and audio jacks. The top part doesn’t contain any mesh ventilation in the standard setup (there’s a removable cover that allows you to change this situation, but we’ll talk about it later). Let’s continue to the next page.

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