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[nextpage title=”Introduction”]

The 300R is the latest mid-tower case within Corsair’s Carbide series, which is the entry-level case series from this manufacturer. Despite being the most inexpensive case offered by Corsair, it provides good construction quality, supports up to seven fans, and is clearly targeted to the user on a budget who is looking for a good computer case. Let’s see what the Carbide 300R has to offer.

Corsair Carbide 300R caseFigure 1: Corsair Carbide 300R case

Corsair Carbide 300R caseFigure 2: Corsair Carbide 300R case

On its left-side panel, the Corsair Carbide 300R supports the installation of two 120 mm or 140 mm fans. See Figure 3.

Corsair Carbide 300R caseFigure 3: Left panel

[nextpage title=”The Front Panel”]

The front panel of the Corsair Carbide 300R has three external 5.25” bays. The covers for these bays are solid.

Corsair Carbide 300R caseFigure 4: Front panel

The case comes with one 140 mm fan on its front panel, featuring an air filter, and it supports the installation of another 120 mm or 140 mm fan. This fan uses a standard three-pin fan power connector, but the manufacturer doesn’t publish technical specifications for it.

Corsair Carbide 300R caseFigure 5: Front fan

The case comes with two USB 3.0 ports and the traditional audio jacks on the top part of the front panel. The USB 3.0 ports use an internal USB 3.0 connector.

Corsair Carbide 300R caseFigure 6: Buttons and connectors

[nextpage title=”The Top, Bottom, and Rear Panels”]

The top panel of the Carbide 300R supports two 120 mm or 140 mm fans. The bottom panel has an air filter for the power supply fan. This filter is removed from the rear panel.

Corsair Carbide 300R caseFigure 7: Top panel

Corsair Carbide 300R caseFigure 8: Bottom panel

Corsair Carbide 300R caseFigure 9: Removing the air filter for the power supply

The rear panel and the interior of the Corsair Carbide 300R are painted black.

On the Corsair Carbide 300R, the power supply is installed at the bottom of the case.

The case comes with a 120 mm fan installed on its rear panel, with a standard three-pin fan power connector. Again, the manufacturer doesn’t publish technical specifications for this fan.

This case has seven expansion slots with vented covers. These covers are reusable.

There are three holes for hoses of liquid cooling solutions, measuring 0.8” (20 mm) in diameter. You need to break the metallic covers that come attached if you want to use them.

Corsair Carbide 300R caseFigure 10: Rear panel

Let’s now take a look inside the Corsair Carbide 300R.

[nextpage title=”Inside the Corsair Carbide 300R”]

Both panels are attached to the chassis using black thumbscrews. The motherboard tray has a huge hole for you to access the backplate of the CPU coolers without having to remove the motherboard from the case, several holes for you to route cables behind it, and a few clips for you to fasten cables using cable ties.

Corsair Carbide 300R caseFigure 11: Overall look

Corsair Carbide 300R caseFigure 12: A view behind the motherboard tray

In Figure 13, we get another overall look inside the case. Expansion cards are fastened using black thumbscrews. The Corsair Carbide 300R supports video cards up to 17.7” (450 mm) long. The support for such long video cards, however, was done at the expense of lacking a second disk drive cage, which would probably make the product a little more expensive.

Corsair Carbide 300R caseFigure 13: Overall look

The power supply is installed at the bottom of the case. It can be installed with either its bottom fan facing up or facing down, so you can decide if you want the fan of your power supply pulling air from inside the case or from outside of it. As already discussed, the case comes with an air filter for the power supply.

Corsair Carbide 300R caseFigure 14: Power supply compartment

[nextpage title=”The Disk Drive Bays”]

The Corsair Carbide 300R has three external 5.25” bays and four internal 3.5”/2.5” bays, featuring tool-less installation mechanisms, except for 2.5” devices that must be installed using regular screws.

Corsair Carbide 300R caseFigure 15: Disk drive bays

As you can see in Figure 15, the front fan blows air directly on the motherboard compartment, as there is no disk drive cage in front of it. If you want to cool down your storage devices instead, you will need to either move the front fan down or install a second fan on the front panel. The lack of a second disk drive cage allows this case to support very long video cards, up to 17.7” (450 mm).

Each 3.5”/2.5” bay is actually a small drawer. See Figure 16. The pegs that hold 3.5” hard drives in place have rubber rings to absorb vibration and, thus, reduce noise.

Corsair Carbide 300R caseFigure 16: One of the 3.5”/2.5” bays

[nextpage title=”Main Specifications”]

The main specifications for the Corsair Carbide 300R include:

  • Style: Mid-tower
  • Application: ATX, and smaller form factors
  • Material: Zinc-coated steel (SECC) body
  • Power supply: Doesn’t come with the product
  • Available colors: Black
  • Side panel: Meshed
  • Dimensions: 17.7 x 8.3 x 19.1 inches (450 x 210 x 485 mm) (H x W x D)
  • Net weight: 14 lbs (6.4 kg)
  • Gross weight: 17.5 lbs (8 kg)
  • Bays: Three external 5.25” bays and four internal 3.5”/2.5” bays
  • Expansion slots: Seven
  • Maximum video card length: 17.7” (450 mm)
  • Maximum CPU cooler height: NA
  • Fans: One 140 mm fan on the front panel and one 120 mm fan on the rear panel
  • Optional fans: Two 120 mm or 140 mm fans on the left panel and two 120 mm or 140 mm fans on the top panel
  • Extra Features: NA
  • More Information: https://www.corsair.com
  • Average Price in the U.S.*: USD 90.00

* Researched at Newegg.com on the day we published this review.

[nextpage title=”Conclusions”]

The Corsair Carbide 300R accomplishes its goal: it is a case that costs below USD 100 that provides all features the average user is currently looking for on a case, while providing support for five additional fans, if you want to improve the ventilation inside the case.

Strong Points

  • Very good price/performance ratio
  • Air filters for the front and power supply fans
  • Comes with two fans, supports up to seven fans
  • Vented slot covers
  • Supports video cards up to 17.7” (450 mm) long
  • Thumbscrews for fastening expansion cards
  • Anti-vibration mechanisms for the hard drives
  • A huge hole in the motherboard tray for accessing the backplate of the CPU cooler
  • Holes for routing cables behind the motherboard tray
  • Clips for fastening cables using cable ties

Weak Points

  • No air filter for the optional left-side fans