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pennysave 13.6K Views
Oct 5, 2026 8:48 AM

Cooler Master Q300L V1 Micro-ATX High Airflow PC Case

$30

$45

33% off
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Deal Details
Amazon has Cooler Master Q300L V1 Micro-ATX High Airflow PC Case (MCB-Q300L-KANN-S00, Dark Grey) on sale for $29.99. Shipping is free w/ Prime or on $35+ orders.

Newegg has Cooler Master Q300L V1 Micro-ATX High Airflow PC Case (MCB-Q300L-KANN-S00, Black) on sale for $29.99. Shipping is $5.99.

Thanks to Community Member pennysave for sharing this deal.

Details:
  • Micro-ATX / Mini-ITX case; 387 × 230 × 381 mm (L×W×H)
  • Clearance: CPU cooler 159 mm, GPU 360 mm, PSU 160 mm
  • Cooling: 240 mm AIO plus 5 fans; perforated panels; magnetic dust filters
  • Modular I/O can sit front, top, or bottom on either side
  • Transparent edge-to-edge side panel

Editor's Notes

Written by powerfuldoppler | Staff
  • At the time of this posting, our research indicates that this is $10 lower than the next best comparable online prices starting from $39.99.
  • This price is lower than the previous FP Deal.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by pennysave
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Cooler Master Q300L V1 Micro-ATX High Airflow PC Case (MCB-Q300L-KANN-S00, Dark Grey) on sale for $29.99. Shipping is free w/ Prime or on $35+ orders.

Newegg has Cooler Master Q300L V1 Micro-ATX High Airflow PC Case (MCB-Q300L-KANN-S00, Black) on sale for $29.99. Shipping is $5.99.

Thanks to Community Member pennysave for sharing this deal.

Details:
  • Micro-ATX / Mini-ITX case; 387 × 230 × 381 mm (L×W×H)
  • Clearance: CPU cooler 159 mm, GPU 360 mm, PSU 160 mm
  • Cooling: 240 mm AIO plus 5 fans; perforated panels; magnetic dust filters
  • Modular I/O can sit front, top, or bottom on either side
  • Transparent edge-to-edge side panel

Editor's Notes

Written by powerfuldoppler | Staff
  • At the time of this posting, our research indicates that this is $10 lower than the next best comparable online prices starting from $39.99.
  • This price is lower than the previous FP Deal.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by pennysave

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14 Comments

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Oct 5, 2026 3:16 PM
174 Comments
Joined Jun 2010
OopsIBorkedItOct 5, 2026 3:16 PM
174 Comments
Got this case two years ago, the movable i/o panel was the selling point for me. Running it with 3 140mm case fans, and it is the quietest rig I have ever owned. Moving the I/O panel to the bottom has it within easy reach, as I keep my rig on a shelf just above my monitor. I acknowledge that many people may not like the acrylic panel, and it does pick up light scratches, but I really dislike glass panels. I have too many kids and dogs to deal with something that can shatter. Only con I have noticed with this case, is that it did run a tiny bit quieter when I took off the front mesh panel and left it off. Removing the top or bottom panels didn't seem to make a difference.
1
Oct 5, 2026 5:15 PM
1.1K Comments
Joined Jun 2014
SeanFrankOct 5, 2026 5:15 PM
1.1K Comments
I have the Q500 version of this case, which fits a full size ATX motherboard. It's awesome because the power supply is front mounted with an extension cable to the back. This layout makes it one of the most compact ATX cases you could buy.

This case doesn't do that, the power supply is in the typical location. So this case won't have size going for it. And the filters on almost every side get dislodged every time I touch it. Not a bad case for the price, but I would choose something else. There are a lot of case deals right now, as PC parts are so expensive, few are building new.
Oct 5, 2026 6:12 PM
9 Comments
Joined Oct 2023
AmusedMusic4006Oct 5, 2026 6:12 PM
9 Comments
It gets the job done for the price
1
1
Oct 5, 2026 6:59 PM
2.5K Comments
Joined Nov 2011
GrandmasterBBCOct 5, 2026 6:59 PM
2.5K Comments
This is about as inexpensive as it gets for a decent budget case. The biggest downside in my eyes is the acrylic side panel which can scratch very easily. But again, you can't do better for the price.
1
Oct 5, 2026 11:09 PM
97 Comments
Joined Aug 2017
Frylock364Oct 5, 2026 11:09 PM
97 Comments
I used these for a nonprofit 7 years ago because they were the cheapest case on newegg I think they were like $35 back then.
The "front" IO is on the side but you can move it around prob the oddest thing about the case (its also older so only 2x USB3 no USBC)
Has 2 very nice magnetic mesh dust filters

No issues with the acrylic scratching or cracking over the last 7 years only had 1 user break a usb port but that was user error.

About to take them out of service next month
Last edited by Frylock364 October 5, 2026 at 04:11 PM.
1
Oct 6, 2026 12:47 AM
91 Comments
Joined Jan 2022
MaroonRoom9815Oct 6, 2026 12:47 AM
91 Comments
this case is super low quality, the usb panel bends inward with the slightest pressue, would shell out 20 more bucks for somethign more rigid
Oct 6, 2026 1:25 AM
10K Comments
Joined Jul 2016
Frank_NittyOct 6, 2026 1:25 AM
10K Comments
Bought one of these cases on sale during Prime Day for $33 even though I didn't need it since I considered it cheap so at $30 it's a no brainer.
1

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Oct 6, 2026 2:48 AM
84 Comments
Joined Nov 2013
SKiTHxOct 6, 2026 2:48 AM
84 Comments
aside from no USB-C this case is amazing value. I built mine on this and my roommate liked it so much he wanted his next one on it too. I'd buy more these are awesome.
Oct 6, 2026 2:56 AM
17 Comments
Joined Jan 2026
HonestSpaniel6008Oct 6, 2026 2:56 AM
17 Comments
I had one since 2018, was 39.9 back then, this case was popular due to the look but really poorly on heat management, the air flow in this case is really a nightmare
Oct 6, 2026 4:29 AM
3K Comments
Joined Nov 2003
Krakn3DfxOct 6, 2026 4:29 AM
3K Comments
Tempted to snag this to mount a BC-250 AMD card I have in it, would be cheaper than 3D printing something.
Oct 6, 2026 2:11 PM
53 Comments
Joined Nov 2018
InkjetpoweredOct 6, 2026 2:11 PM
53 Comments
This case was great to work with in terms of the internal working space, but the mesh panels get knocked off easily, and it looks huge/chunky in-person. Still, I want to emphasize how great it was to work with for the actual build assembly, especially if you have thicker hands. So long as wherever it ends up has plenty of space, $30 is a great price here for a practical case as long as it has the features you need. I think I originally paid $45 USD and thought that was good enough.
Oct 6, 2026 8:45 PM
59 Comments
Joined Jul 2015
qualitypixelOct 6, 2026 8:45 PM
59 Comments
Good cheap case for a small low-powered system. Used one to build a PC for a relative and they only use it for youtube/facebook/writing.

I wouldn't use this case to build a gaming PC.
Oct 7, 2026 2:17 AM
1K Comments
Joined Aug 2015
PhuongN1949Oct 7, 2026 2:17 AM
1K Comments
Quote from Frank_Nitty View quoted comment :
Bought one of these cases on sale during Prime Day for $33 even though I didn't need it since I considered it cheap so at $30 it's a no brainer.
Yo!!! Me too! Picked up a red dragon 850W psu today also. Now just need the 14100f to get down to like $80-90 and I'll have all parts I need for another budget build so the nephews can stop fighting over the computer.
Oct 7, 2026 2:35 AM
10K Comments
Joined Jul 2016
Frank_NittyOct 7, 2026 2:35 AM
10K Comments
Quote from PhuongN1949 View quoted comment :
Yo!!! Me too! Picked up a red dragon 850W psu today also. Now just need the 14100f to get down to like $80-90 and I'll have all parts I need for another budget build so the nephews can stop fighting over the computer.
Ironic you mentioned that you're building a PC for your nephews since I did the same thing for my nephews back in 2023 for Xmas. At that time, I used the Cooler Master NR200 case which I really liked So, yesterday I just put together a new PC using that same case, but I was able cobble together the other necessary components from Prime Day earlier this year in combination w/ DDR4 RAM and GPU(s) I was able to obtain through the secondhand market (i.e., FB Marketplace) and I plan to post a video a/b my findings on my YouTube channel some time later this week.
1

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