Specification and test methodology
| Corsair Carbide Series 300R specification | ||
|---|---|---|
| Material | Steel structure with plastic accents | |
| Colour | Black | |
| Motherboard Support | ATX, Micro-ATX | |
| Drive Bays | External | 5.25in x 3 | 
| Internal | 3.5/2.5in x 4 | |
| Cooling | Rear | 1 x 120mm exhaust fan | 
| Front | 2 x 120/140mm intake fans (1x 140mm included) | |
| Side | 2 x 120/140mm intake fans (optional) | |
| Top | 2 x 120/140mm exhaust fans (optional) | |
| Expansion Slots | 7 | |
| Front I/O Ports | USB 3.0 x 2 (backward compatible with USB 2.0) Audio x 1 Mic x 1 | |
| GPU Clearance | 450mm (max) | |
| Power Supply | ATX (not included) | |
| Net Weight | 7.2kg | |
| Dimensions | 485mm (H) x 211mm (W) x 450mm (D) | |
| Test System Configuration | ||
|---|---|---|
| Motherboard | ASUS P6X58D | |
| CPU | Intel Core i7 980X Extreme Edition (with reference DBX-B cooler) | |
| Memory | 6GB (3 x 2GB) Corsair Dominator DDR3 | |
| Graphics Card | AMD Radeon HD 6970 | |
| Power Supply | Corsair HX1050W | |
| Storage | Intel SSD | |
To find out how well the chassis can cool, we've loaded it up with an X58 test platform and run a series of CPU and GPU benchmarks for comparison against a variety of mid-tower alternatives.
Firstly, CPU cooling performance is measured by setting fan speed to low and recording CPU temperature when the system is idle. We then apply a 15-minute load of the Prime95 stress test and record CPU temperature again. To demonstrate the chassis' optimum cooling capability, we also set all fans - including the CPU cooler - to high speed mode and re-run the Prime95 torture test for a further 15 minutes.
Secondly, GPU temperature is also recorded in three states; idle, load with fans at standard speed and load with fans at high speed. In this test, GPU load is defined as a 15-minute stint of Furmark.
And finally, to find out how loud the chassis can get we're using a PCE-318 noise meter placed at the front of each chassis to take decibel readings with the system idling in two modes; low fan speed and high fan speed.
All chassis are tested only with the standard manufacturer-supplied fans, and to take into account the fluctuating ambient temperature, our graphs depict the delta temperature - that's actual CPU/GPU temperature minus the ambient. Just so we're clear, room temperature at the start of testing was recorded for each chassis as follows:
| Ambient Temperature During Testing (ºC) | |
|---|---|
| Antec SOLO II | 18.5 | 
| Cooler Master Silencio 550 | 23.9 | 
| Corsair Carbide 300R | 21.3 | 
| Corsair Carbide 400R | 24.6 | 
| Corsair Carbide 500R | 18.9 | 
| Corsair Graphite SE 600T | 21.2 | 
| Corsair Obsidian 650D | 21.4 | 
| Fractal Design Core 3000 | 20.9 | 
| NZXT Phantom 410 | 19.4 | 
| NZXT Tempest 410 Elite | 22.7 | 
| SilverStone Raven RV03 | 21.9 | 
| SilverStone Temjin TJ04-E | 20.4 | 

 
             
             
             
                 
                    
                 
                    
                 
                 
                 
                