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phoinix | Staff 13.1K Views
Sep 12, 2026 7:02 AM

Cooler Master Q300L V1 Micro-ATX High Airflow PC Case

$35

$45

22% off
+ Free S&Hat Amazon
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Deal Details
Amazon has Cooler Master Q300L V1 Micro-ATX High Airflow PC Case (MCB-Q300L-KANN-S00, Black) on sale for $39.99 - $5.01 clip coupon on the page = $34.98. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.
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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 SaltyOne | Staff
  • At the time of this posting, our research indicates that this is $5.01 lower than the next best comparable online prices starting from $39.99.
  • 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 phoinix | Staff
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, Black) on sale for $39.99 - $5.01 clip coupon on the page = $34.98. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.
  • Note: You must be logged in to clip coupons or apply promo codes. Coupons/Promo codes may vary by account or may need to be re-applied in order to discount properly.
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 SaltyOne | Staff
  • At the time of this posting, our research indicates that this is $5.01 lower than the next best comparable online prices starting from $39.99.
  • 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 phoinix | Staff

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17 Comments

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Sep 12, 2026 7:37 AM
41 Comments
Joined Mar 2017
FudgeA.BirdSep 12, 2026 7:37 AM
41 Comments
not a bad price
Sep 12, 2026 8:39 AM
572 Comments
Joined Oct 2022
NeatCable281Sep 12, 2026 8:39 AM
572 Comments

Our community has rated this post as helpful. If you agree, why not thank

The new Q300L V3 is significantly better than this and has dropped to $35 once before already
8
1
Sep 12, 2026 9:01 AM
709 Comments
Joined Jul 2006
Fuzb0Sep 12, 2026 9:01 AM
709 Comments

Our community has rated this post as helpful. If you agree, why not thank

Unless I've mistaken this for a similar model, the clear panel on the side is plexiglass not glass and can collect quite a bit of static and becomes a dust magnet. Additionally as it's plastic it can scratch fairly easily. Lastly using a 240mm AIO is a pain if you want to put it topside. The motherboard mount places it very close to the top and I had to pull the radiator to install ram.
3
Pro
Sep 12, 2026 11:57 AM
3.4K Comments
Joined Nov 2010
Elon69
Pro
Sep 12, 2026 11:57 AM
3.4K Comments
It is cheap but ugly once it's put together to me.

https://www.reddit.com/r/mffpc/co...inal_form/


good for a bare minimum case I guess
1
Sep 12, 2026 1:56 PM
104 Comments
Joined Nov 2022
FancyCemetery555Sep 12, 2026 1:56 PM
104 Comments
I have this case. Bad airflow, abandoned.
It's worth spending $10-20 more for a nicer $45-55 case off amazon/newegg out of the whole PC budget.
1
1
Sep 12, 2026 2:11 PM
2 Comments
Joined Jan 2015
obaid310Sep 12, 2026 2:11 PM
2 Comments
Had this case for 10 plus years and it works great if you understand airflow.
Sep 12, 2026 3:31 PM
647 Comments
Joined Nov 2015
ZakT659Sep 12, 2026 3:31 PM
647 Comments
Quote from FancyCemetery555 View quoted comment :
I have this case. Bad airflow, abandoned.
It's worth spending $10-20 more for a nicer $45-55 case off amazon/newegg out of the whole PC budget.
This is an argument I've heard a lot over the years but ended up building an office PC in one that occasionally sees some modest GPU use. It's done very well and keeps the components clean and cool with 2 or 4 (I don't recall) 120mm intake fans.

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Sep 12, 2026 4:10 PM
756 Comments
Joined Jun 2004
gregrieglerSep 12, 2026 4:10 PM
756 Comments
Quote from Fuzb0 View quoted comment :
Unless I've mistaken this for a similar model, the clear panel on the side is plexiglass not glass and can collect quite a bit of static and becomes a dust magnet. Additionally as it's plastic it can scratch fairly easily. Lastly using a 240mm AIO is a pain if you want to put it topside. The motherboard mount places it very close to the top and I had to pull the radiator to install ram.
Yes, and it's not even like a high quality plexi. Kind of thin and wobbly, with rough edges. The case is not as small as it looks, kind of annoying spacing. The detail/decorations on the case are just magnetic sheets with hard cut edges that stick to an otherwise basic case. This is the kind of case you buy to have a case, not to be proud of your build. Mine sits in a cabinet out of view for my Plex server.
Sep 12, 2026 5:03 PM
64 Comments
Joined Dec 2007
needmortoysSep 12, 2026 5:03 PM
64 Comments
This could be good for my former Plex server components.
Sep 13, 2026 2:19 AM
50 Comments
Joined Jun 2010
xaruaSep 13, 2026 2:19 AM
50 Comments
perfect for new budget build
Pro
Sep 13, 2026 2:55 AM
416 Comments
Joined Oct 2003
tech_turtle
Pro
Sep 13, 2026 2:55 AM
416 Comments
Had a slightly different model of this a few years back. Not great, esp because of the plexiglass side and poor airflow. I've seen better cases for this price recently, so personally I'd wait even for a budget build.
Sep 13, 2026 3:09 AM
23 Comments
Joined Nov 2020
TenseRock657Sep 13, 2026 3:09 AM
23 Comments
Garbage case, don't buy. All of the comments here saying they liked the case required them buying additional fans. You could instead just buy a better case with more fans for the same price as this case and buying extra fans. Examples: https://www.newegg.com/phanteks-m...6811854145 , https://www.newegg.com/phanteks-m...6811854143 , https://www.newegg.com/corsair-at...6811139269
Sep 13, 2026 3:37 AM
778 Comments
Joined Feb 2007
bargainleecherSep 13, 2026 3:37 AM
778 Comments
I built many pcs throughout my life and this has to be the absolute worst airflow I have ever built in. I added additional fans.

Theoretically, it should allow plenty of air in but it's the mesh cover in the front that is so restrictive of the airflow. You can take it off and allow a tad more air.

This is the first case I just threw away after a couple of months of use.
1
Sep 13, 2026 5:34 AM
14 Comments
Joined Mar 2025
PurpleScent421Sep 13, 2026 5:34 AM
14 Comments
looks like a nice case
1

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Sep 13, 2026 3:38 PM
9.8K Comments
Joined Jul 2016
Frank_NittySep 13, 2026 3:38 PM
9.8K Comments
Got mine for $32.99 during this past Prime Day.

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