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Computer Cases | ATX, Micro ATX, & ITX Towers from $19+

A computer case is the most visible portion of your build - so choose a design you love. PC Cases house & protect all of the internal components of a computer. Because they are so sturdy, choosing a good case now will let you carry it over to future builds. From elaborate paint jobs to side-windows that let you peer into your setup - cases can be an expression of your style. Choose the right size case for the components you will be installing into it - ATX cases can house larger builds and support both ATX and mATX motherboards. Micro ATX cases only support mATX boards and tend to be smaller than ATX. ITX cases support ITX boards only.
ATX Cases
Micro ATX Cases
Mini ITX Cases

Category featured products
Q-Tech Q-519BP Black/Silver 10-Bay ATX Computer Case NO PSU
Regular Price: $39.78
Sale: $25.98
Corsair CC-9011038-WW Graphite 230T Windowed Mid Tower Case
Regular Price: $115.87
Sale: $99.98
Corsair CC-9011051-WW Carbide Series SPEC-02 Mid Tower Gaming Case
Regular Price: $99.44
Sale: $79.98
Thermaltake CA-1A8-00M1NN-00 Urban S1 Black mATX Mini Tower PC Case
Regular Price: $59.87
Sale: $49.98
Rosewill RANGER-M Micro ATX 5-Bay Mini Steel Computer Case
Regular Price: $67.78
Sale: $49.98

What should I look for when buying a computer case?

A few key points to consider in buying a PC case are:

  • Is this computer case large enough to fit my video card?
  • Is this PC case wide enough to fit my CPU cooler?
  • How many fans, and what size, can be installed in my computer case?
  • How many hard drives bays are enough in a computer case?
  • Will I be able to upagrade this PC case later?

These questions will help to find a lot of the answers you'll be looking for. Video cards can get long, so be sure that you can fit the card that you really want, because otherwise you'll have to change either your card or your case. Computer parts aren't the kind of hardware that you can hammer in to make fit; they either fit, or they don't.

For cooling, many systems can get by with a front intake and rear exhaust. However, gaming systems and 3D renderers will need a case that breathes easily and has plenty of circulation using 4 or more fans. Otherwise your case interior will heat up and could fry your components. And don't forget that you'll need enough width for your CPU heatsink.

Most cases cases, especially ATX cases, have plenty of room for hard drives, but how compatible are they with solid state drives? If you plan on installing the latest in data storage technology, make sure your case is compatible, or you'll likely need to purchase a mounting adapter.

And last, but not least, will you be able to install more hardware later? One of the great features of building you own system is the ability to more easily customize and mod your system. This could be hard to do if you don't have enough room, though. Get a case with some breathing room you can install that new sound card, fan controller, or other component later on.

What are the basic case sizes out there?

The most popular case form factors for PC builders are ATX, Micro ATX, and Mini ITX. We are proud to feature brands such as Antec, BitFenix, NZXT, Fractal Design, and many more in our selection of personal computer cases.

What features should I look for in a computer case?

Basic features in computer cases to look for are motherboard form factor compatibility, number of hard drive bays, internal space for a video card, as well as room for your cooling systems, whether they are case fans, or CPU liquid cooling. More minimal features that are of interest are the front I/O (USB 2.0 or USB 3.0, 3.5mm Audio, eSATA, etc.), and hard drive installation features such as front 3.5 inch drive bays, and toolless internal drive bays.

What is the right computer case for me?

The kind of system you want to build is a strong determing factor in the type of case you should buy. For a gaming PC, you'll likely want a larger case with plenty of room for at least one video card and a hefty cooling system, so a mid-tower ATX Case is good starting point, the step-up from which would be a full-tower ATX case, which some could also support E-ATX and larger motherboard sizes. For a standard SOHO (Small Office/Home Office) computer, you could go with a mid-tower, or even a MicroATX or Mini-ITX system, depending on the kind of hardware you want to install. HTPCs (Home Theater PCs) are often used as a entertainment or media hub, so you'll likely want to use a Mini-ITX case to create a discrete system that will look good in your living room.