Budget PC Cases Under $100 You Can Buy in 2021

Well, if we talk about the PC Cases or Computer Cabinet. Some people want to spend money on it, while some want to stay in a budget range. The only specific reason that you should or should not spend on a computer cabinet is its airflow. Those who own a high end hardware will definitely buy a expensive PC Case. While, the ones who own a medium range hardware will stay in a budget range. Here, the Budget PC Cases may serve them accordingly well.

So, it’s not wrong to say that, everything depends on the budget and hardware you own. But always keep in mind that a decent computer cabinet with a decent airflow will keep your hardware live longer. Even some budget PC cases are also well enough to maintain a good airflow for your machine. Today, I have gathered a list of those budget cases, that will cost you under $100. Have a look at them and share your thoughts with us about the one you want to buy.

Read Also: Best PC Case Fans 2020 – Keep Your Gaming PC Super Cool

Budget PC Cases 2021

1: MUSETEX Phantom Mid-Tower PC Case (907)

MUSETEX Phantom PC Case
Motherboard Size EATX, ATX, Micro ATX & ITX
GPU Length380 mm
PSU Length200 mm
CPU Cooler Height160 mm
Weight18.5 Pounds
Expansion Slots7

You can definitely expect some premium level features from Musetex Phantom ATX Mid Tower PC Case. It is a quality built that comes with 6×120 mm ARGB fans (3 on front, 2 on top & 1 on rear). While is compatible with liquid cooling radiator of size 360 mm. So airflow is not a big deal here for this computer case.

If we talk about the side panels, Musetex Phantom features 24 mm tempered glass on the front & side panel. So you will enjoy RGB lighting on an extreme level of ease. The remote control is also included in the box to choose the colors of your choice especially in music mode (Symphony, Horse Racing, and Static Mode.

Cable management options are also pretty decent in this case. Behind the right side panel, there is appropriate space for playing with cables accordingly. While the PSU is covered with a beautiful shroud. On the top front, there is power button, 1 x USB-3.0, 2 x USB-2.0, RGB button, reset button and audio jacks.


  • RGB Fans
  • Tempered Glass Panels
  • Quality Built Material
  • Music Mode


  • No Dust Filters on Front

2: Cooler Master MasterBox MB311L ARGB 

Cooler Master Budget PC Cases
Motherboard SizeMicro ATX, Mini ITX
GPU Length344 mm
PSU Length140 mm
CPU Cooler Height166 mm
Weight14.22 Pounds
Expansion Slots4

Tight on budget.? But want some quality pc case offering RGB lighting, tempered glass panel and PSU covered with shroud.? If yes, then Cooler Master has manufactured MasterBox MB311L case specially for you. It is the best case among the Micro ATX budget PC cases you can buy in 2021.

MasterBox MB311L comes with 2 pre-installed 120 mm RGB fans and support for liquid cooling radiator up to 280 mm. You can easily install 6×120 mm cooling fans in this case. Fans can also be integrated with Motherboard to customize the RGB features. If we talk about the front & side panel, front is made up of fine mesh with minimum to maximum gaps for a proper airflow.

While the side panel offer tempered glass to enjoy the glowing RGB lights. Dust resistant filters are also included to keep dust away. Another notable feature of this case is its movable drive cage. Which can be moved back to manage space for radiator while on the front to manage space for PSU. Rest of the internal is well enough to do cable management and other arrangements.


  • Affordable
  • Quiet Fans
  • RGB Features
  • Side is Made of Tempered Glass
  • Movable Drive Cage


  • Issues in Installation of Radiator on Top

3: AeroCool Cylon RGB Mid Tower Case

AeroCool Budget PC Cases
Motherboard SizeATX, Micro ATX & Mini ITX
GPU Length346 mm 
PSU Length207 mm
CPU Cooler Height155 mm
Weight10.03 Pounds
Expansion Slots7

Another choice in today’s list of best budget PC cases is AeroCool Cyclon RGB Mid Tower Case. If you are not willing to spend hundred of dollars just on a PC case. Don’t worry just place the order for this affordable PC Case. It is a decent quality computer case for mid range hardware.

AeroCool Cyclon offers tempered glass side panel, attractive RGB strip on front, that features 13 lighting modes, 6 RGB lighting modes & 7 solid color modes. Apart from that, it is compatible with total of 7×120 mm fans, including 3 on front, 1 on top , 1 on rear & 2 on bottom under the GPU. Similalry it is also compatible with liquid cooling radiator having size up to 240 mm.

Moreover, it also contains dust filter on the bottom to avoid dust particles from entering the case. PSU is covered with a shroud having side area uncovered. Cable management options are average as it’s a bit difficult to manage the space. But still you can do a great arrangement for air flow in this PC case.


  • Strip Shaped RGB
  • Bottom Cooling Fans Under GPU
  • Beatiful Design & Compact Size


  • Cable Management
  • HDD Bays Non-Removeable

4: Thermaltake S100 Micro ATX Mini Tower

Thermaltake White PC Case
Motherboard SizeMicro ATX, Mini ITX
GPU Length330 mm
PSU Length160 mm
CPU Cooler Height165 mm
Weight13.34 Pounds
Expansion Slots4

Thermaltake S100 is also called snow edition PC case as it is available in white color. To be honest, white PC case has its own charm and attraction. Not only that, it also seems clean and crystal clear, because dust particles remains invisible over it.

Design of the case is slim & compact, where each and every angle is focused pretty well by Thermaltake Designers. Other than that, S100 is a metal & steel made PC case that comes with 1×120 mm cooling fan on rear, 4 mm tempered glass side panel, and dust filters on both top/bottom.

PSU area is covered with a shroud while the side area is uncovered to see the PSU branding. If we talk about the Top front, there is power button, reset button, 1x USB-3.0, 2 x USB-2.0, and audio jacks. It supports 2×120 mm cooling fans on front, 2×120 mm on top while 1×120 mm on rear. Overall, this beautifull looking case will suit your gaming desk pretty well.


  • Premium Design
  • Steel & Metal Made
  • Better Airflow
  • Case Fans & Radiator Space


  • Internal Space Management Issue

Don’t Miss the Following Gadgets & Accessories

Best Mid Tower PC Cases to Buy in 2020

The Best 5 Gaming Mouse You can Buy in 2020

The Best USB Power Strip Surge Protector You Can Buy

Best Portable DVD Player You Can Buy in Year 2020

I hope you liked this post about Budget PC Cases for year 2021. If you are willing to purchase any of these cases, click on the given affiliate links and place your order directly from Amazon. We will earn some percentage from Amazon. Stay tuned to get more related updates on a daily basis.