SKU CC-9011028-WW
Obsidian Series™ 350D Micro ATX PC Case

$99.99 USD

The Obsidian Series™ 350D Micro ATX PC case is designed for building compact high-performance systems with Micro ATX and Mini ITX motherboards. The compact size is ideal if your space is limited, but there's plenty of room inside for liquid CPU cooling, dual hard drives, dual SSDs, and SLI/Cross Fire ready.


The Micro ATX case for high-performance system builds

The Obsidian Series 350D Micro ATX PC case is designed for building compact high-performance systems with Micro ATX and Mini ITX motherboards. The compact size is ideal if space is limited, but there’s plenty of room inside for liquid CPU cooling, dual hard drives, dual SSDs, and dual full-length graphics cards.

Like all Obsidian cases, the 350D is designed for fast and neat builds, with tool-free access and drive installation. Smart features like a native 2.5” SSD cage make the most of its small size, and the cooling-focused interior has five fan mounting points, with room for two 240mm radiators.

Compact Size

The 350D is smaller than mid-tower cases, so it’s at home on a desktop or tucked away out of sight. The smaller dimensions make it great for building systems for travelling, too.

Superior Expandability

With the 350D, Micro ATX cases are no longer just for building basic systems. There’s room for a full-size liquid CPU cooler and two dual-length radiators, and the five PCI-E slots allow you to install dual full-length graphics cards without using up all your slots. And with two 3.5” hard drive bays and two dedicated 2.5” bays for solid-state drives, storage expansion isn’t a problem.

Flexible Cooling Options

The 350D comes with a 140mm intake fan and a 120mm exhaust fan, and there are mounts for five total. The front and top mounts are spaced for 240mm radiators for more cooling options.

Fast, Neat, and Smart

The 350D is designed for fast and neat builds, with features like tool-free access and drive installation and our innovative cable routing system. A front panel USB 3.0 connector and audio I/O make 350D-based systems easy to use, too.


  • Package Contents

  • Obsidian Series 350D Micro ATX PC Case
  • Quick Start Guide
  • Compatibility

  • Mini-ITX
  • MicroATX

Technical Specifications

  • Maximum GPU Length: 380mm
  • Maximum PSU Length: 200mm
  • Maximum CPU Cooler Height: 160mm
  • Case Expansion Slots: 5
  • Case Drive Bays: (x2) 5.25in (x2) 3.5in (x2) 2.5in
  • Case Material: Aluminum, Steel
  • Radiator Compatibility: 120mm; 240mm; 280mm
  • Compatible Corsair Liquid Coolers: H55, H60, H75, H80i, H90, H100i, H105, H110
Maximum GPU Length
Maximum PSU Length
Maximum CPU Cooler Height
Case Expansion Slots
Case Drive Bays
(x2) 5.25in (x2) 3.5in (x2) 2.5in
Case Form Factor
Case Windowed
Case Warranty
Two years
Corsair Link Enabled
Case Material
Aluminum, Steel
Radiator Compatibility
120mm; 240mm; 280mm
Compatible Corsair Liquid Coolers
H55, H60, H75, H80i, H90, H100i, H105, H110
Case Power Supply
ATX (not included)
Case Drive Bays 3.5"
Case Drive Bays 2.5"


Posted on  July 6, 2013

Obsidian 350D wins Must Have Award from Kit!

"The Corsair 350D is an excellent addition to the enthusiast-grade Obsidian series. Even with a physical size reduction, Corsair’s impressive engineering and design has allowed the 350D to be filled with many of the important features that made its Obsidian series predecessors such successful products."

Full Review!


Posted on  April 26, 2013

350D wins OC3D Gold Award!

As expected, we're giving this case a well deserved Gold award. £93 is a far cry from being a cheap MATX case, but that's because this case is far from being 'cheap' at all - many would say that the window alone sets it apart from the competition. We expect to see build logs and rig galleries popping up that include this case, and honestly we can't wait to see what people do with it.

Full Review!


Posted on  April 25, 2013

Obsidian 350D wins eTeknix Editor's Choice Award!

It’s an interesting option and a while it is a little on the small side, not everyone needs a 900D or full tower, this is tough, small, stylish and effective and for me that’s more than enough. Corsair have out done themselves with this one and made one of the best looking and performing M-ATX chassis on the market

Full Review!

By Nexthardware

Posted on  May 3, 2013

350D wins Recommended award from Nordic Hardware

Corsair Obsidian 350D is a chassis we can recommend without hesitation and with a stylish design and smooth form factor suitable for most uses.

Full Review!

By TLR-eSports

Posted on  April 26, 2013

Obsidian 350D wins Guru3D Recommended award

“See that's what I am trying to say, the small form factor really does not need to be a restriction. You can build a PC that is massive in performance whilst being small in size. Combine that with plenty of airflow, the option for liquid cooling and a warranty of two years, well... it's just hard to go wrong with the 350D I think.”

Full Review!

Obsidian 350D Spare Parts List

Obsidian Series 350D Top Magnetic Mesh Cover

How to find your lot code


Lot codes for Corsair products can generally be found in the follow locations. For more specific information, please view the Corsair knowledge base Lot Code article for a particular product series.

Headsets: The code is located on the earcup's arm.

Speakers: The code is located on the back of the subwoofer.

Case: The code is located on the back panel.

Cooling: The code is located on the radiator.

Flash: The code is located on the unit's packaging, near UPC barcode.

SSD: The code is located on the label on top of the SSD.

Mice: The code is located on the label taped next to the USB connector.

Keyboard: The code is located on the packaging near the UPC barcode.

Memory: The code is on the memory module's label.

PSU: The code is on the PSU label, next to the serial number.

Warranty FAQ

How do I make a warranty claim?

Prior to submitting your warranty claim, we recommend checking the Corsair knowledge base at first, where you can find answers to commonly-asked questions. You can also receive troubleshooting assistance by clicking Ask a Question or proceed with product replacement by clicking Request an RMA.

Valid warranty claims should be processed through the retailer where the item was purchased during the first thirty (30) days after purchase. This period may vary depending on where you purchased your product; please verify the return policy with the retailer where you purchased your product. Any warranty claims that cannot be processed through your original point our purchased should be submitted to Corsair at 

What are Corsairs replacement options?

Corsair offers the following Warranty fulfillment options:

Standard Replacement:

Through Corsairs Standard Replacement process, Corsair will issue an approved RMA number for the return and replacement of your defective product(s). Our Standard Replacement processing time from receipt of your product(s) to the replacement product(s) shipment is 1-3 business days plus transit time.

Express Replacement:

At Corsair, we understand the need to be up and running at all times! To minimize down time, we offer an Express Replacement RMA process. Through this process Corsair will ship your replacement product(s) prior to receiving your defective product(s). This process requires a valid Credit Card where a holding fee will be applied for the cost of the product until the returning product(s) are received by Corsair. To avoid being fully charged for the Express Replacement product(s), the defective product(s) must be received by Corsair within 10 business days from the date your Express Replacement order is shipped.

Accessory Product Request:

Experiencing a problem with a Corsair Component Product? Many of Corsair products have easy to install replacement accessories which will resolve the issue and prevent the need to return the entire product for replacement.

Where do I ship my items?

Corsair operates multiple RMA receiving locations worldwide. Your RMA confirmation will specify the specific return address you must use when sending your RMA package. This will be your standard return location and should not be changed without prior approval from Corsair. Any packages received at an unauthorized location may be refused and returned to the sender at the senders expense.