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Cooler Master MasterBox Lite 3.1 TG mATX Case with Dark Mirror Front Temper Glass Side Panel Customizable Trim Colors (MCW-L3S3-KGNN-00)

4.4 4.4 out of 5 stars 2,482 ratings

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black
Micro-ATX Tower

Purchase options and add-ons


About this item

  • Dark Mirror front panel : Stand out and be unique; Your case doesn't have to look boring
  • Customizable trim colors : Choose from 3 distinct colors to suit your style, all included in the box
  • 4 millimeter thick edge to edge Tempered glass side panel : Show off your build in style, and have easy access to your components in case things go haywire
  • Support for 3 fans & water cooling : 3 120 millimeter fans and front water cooling support ensure that you don't have to compromise on performance
  • Graphics card support up to 380 millimeter : You won't ever have to worry about the fit of your graphics card, with support for even the largest, widest cards

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Cooler Master MasterBox Lite 3.1 TG mATX Case with Dark Mirror Front Temper Glass Side Panel Customizable Trim Colors (MCW-L3S3-KGNN-00)
Cooler Master MasterBox Lite 3.1 TG mATX Case with Dark Mirror Front Temper Glass Side Panel Customizable Trim Colors (MCW-L3S3-KGNN-00)
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Price$67.20$58.99$49.99$69.99-18% $69.99
List:$84.99
$69.90
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Quality of material
4.1
4.5
3.2
4.3
4.2
4.2
Value for money
4.4
4.1
4.1
4.3
4.2
Easy to remove
4.7
4.2
4.8
4.7
5.0
Noise level
4.4
4.2
4.6
4.3
4.7
Easy to assemble
4.4
4.3
4.1
Sold By
AVGPC
Amazon.com
ZalmanUSA
RACERSPEED INC.
Antec Prime
ZalmanUSA
case type
tower
mini tower
full tower
mid tower
mid tower
motherboard form factor
Micro ATX
ATX, Micro-ATX, Mini-ITX
Mini ITX
ATX
ATX, mATX, Mini-ITX
material
Tempered Glass
Tempered Glass, Plastic, Metal
Alloy Steel
Tempered Glass
Tempered Glass
Alloy Steel, Tempered Glass, Plastic
cooling method
Fan
Air
Air
Air
Air
Air
number of usb ports
2
2
3
3
3
3
fan count
3
5
1
3
3

From the manufacturer

Header
Main

CM
Make It Yours.

We're all about the things that make building a PC such a rewarding experience. The sense of achievement. The joy of making and creating something uniquely yours in form and function and, of course, the thrill of bringing your creation to life without melting your components.

MasterBox Lite 3.1 TG

Choose Your Style

The MasterBox Lite 3.1 TG mATX Case is your straightforward option for your PC build that doesn't ignore good looks, customization, or performance. A sleek DarkMirror front panel and three custom trim colors (included in the box) offer a great first entry point for customization. Additionally, it comes with a 4mm thick edge-to-edge Tempered Glass Side Panel to show your internal components. And support up to 3 cooling fans and a watercooling system, we ensure your performance will not suffer.

  • DarkMirror Front Panel
  • Customizable Trim Colors
  • Full Black Coating
  • 4mm Thick Edge to Edge Tempered Glass Side Panel
  • Support for 3 Fans & Watercooling
  • Graphics Card Support up to 380mm
Customizable-Trim
TG

Ample Expansion

DarkMirror Front Panel

Roomy Interior

Ample Expansion

Versatile cooling options in the front, and rear. A total of one 2.5" and two 3.5" drives can be mounted using a tool-less system.

DarkMirror Front Panel

Because your case doesn't have to be boring. The DarkMirror front panel shade light for a sharper contrast of any LEDs fans.

Roomy Interior

The spacious interior fits all standard Micro-ATX motherboards configurations.

What's in the box

  • Case and manual
  • Looking for specific info?

    Product information

    Technical Details

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    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
    Product Warranty: For warranty information about this product, please click here

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    Cooler Master MasterBox Lite 3.1 TG mATX Case with Dark Mirror Front Temper Glass Side Panel Customizable Trim Colors (MCW-L3S3-KGNN-00)


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    Product Description

    The Master Box Lite 3.1 TG mATX Case is your straightforward option for your PC build that doesn't ignore good looks, customization, or performance. A sleek Dark Mirror front panel and three custom trim colors (included in the box) offer a great first entry point for customization. The compact chassis with spacious interior features black coating that gives the case a luxury look. Additionally, it comes with an edge to edge 4mm thick tempered glass side panel to show your internal components. And with support for up to 3 cooling fans and a water cooling system, we ensure your performance will not suffer.

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    2,482 global ratings

    Customers say

    Customers like the appearance, value, and quality of the computer chassis. For example, they mention it looks amazing for the price, it's a good quality case, and it provides a lot of space. Some appreciate the open design and easy installation. Overall, most are happy with their purchase and recommend it to others.

    AI-generated from the text of customer reviews

    124 customers mention117 positive7 negative

    Customers appreciate the value of the computer chassis. They say it's perfect for a budget build and looks amazing for the price.

    "...This s a nice case for the money, and a solid 4 stars." Read more

    "...Hahaha only word to describe it is.. 'Cute'!Pros:- Great Price ($43 in my case).-..." Read more

    "It's cheap and having a full tower might have its perks but the acryllic panel simply does not feel nice, the temperatures will be an issue since..." Read more

    "...This met all of my expectations and was reasonably priced." Read more

    123 customers mention123 positive0 negative

    Customers are satisfied with the appearance of the computer chassis. They mention that it has a great look, the glass is awesome, and it has beautiful front IO combo. They also say that it's a really nice case with great cable management. Customers also appreciate the minimalist and high end looking case.

    "...The case also needed to look modern and not break the bank...." Read more

    "...So to summarize:Pros:* Nice looking case which uses good materials where they matter.* Illuminated buttons (white)...." Read more

    "...Fits any graphics card you throw in it!- Beautiful Front IO Combo!Cons:-..." Read more

    "...Comes with dust filters.-Comes with PSU dust filter.-Looks very sleek and modern...." Read more

    102 customers mention83 positive19 negative

    Customers like the quality of the computer chassis. They say it's a solid case, well constructed, and easy to build. Some say it has a plastic side window that comes on and off easily. Overall, most are satisfied with the quality and functionality of the product.

    "...So to summarize:Pros:* Nice looking case which uses good materials where they matter.* Illuminated buttons (white)...." Read more

    "Very good case!-Side Panel is dimmed so you can't really see it at night unless you have LEDs...." Read more

    "...Really pleased with the build, and the plastic side window comes on and off easily and is very light and clear. Exterior Is sexy and sleek...." Read more

    "This was a replacement case. Product seemed well made. I was looking for something with an optical drive slot and this was the best I could find...." Read more

    87 customers mention66 positive21 negative

    Customers like the size of the computer chassis. They say it's spacious, easy to work in, and has an open design. They also appreciate the room for their GPU, additions fans, and cable management. Some say the case is small so they can take it to places.

    "...It has plenty of space for additions fans.I would fully recommend this case to anybody looking to build a custom PC." Read more

    "The case is great, small, and it comes with black, red, and white brackets so you can change them whenever you like...." Read more

    "...4 places to mount SSD's.* Tooless drive installation for the 3.5" HDD's and 5.25" drive.*..." Read more

    "...-Side panel is a lil bit easy to scratch.-No space issues in the main part of the case.-Airflow is good! Comes with dust filters...." Read more

    75 customers mention62 positive13 negative

    Customers like the case. They say it's a great case, easy to work in, and a pretty good micro ATX case for the money you pay. Some say that the acrylic panel is easy to break. Overall, customers are satisfied with the case's quality and design.

    "The case is great, small, and it comes with black, red, and white brackets so you can change them whenever you like...." Read more

    "Awesome case, great quality but the packaging could be improved to help the case being protected against shipping companies that treat packages in a..." Read more

    "...front of the case is to pop the front panel off slightly, it is fairly unnoticeable and greatly increased airflow...." Read more

    "...Plus I got this for $85 before it went up in price.The case itself is amazing and gives alot of space!" Read more

    47 customers mention40 positive7 negative

    Customers find the construction of the computer chassis easy. They mention that it's simple, modern yet capable, and easy to work with. They also appreciate the clean install and toolless drive installation. Customers also mention that the case has good cooling and easy cable management.

    "...Cabling was easy and with lots of room was able to hind all of the cables. The full glass side shows off the LED lights and all components great!..." Read more

    "...I changed mine to white for my theme. It was super simple and only took a few minutes...." Read more

    "...4 places to mount SSD's.* Tooless drive installation for the 3.5" HDD's and 5.25" drive.*..." Read more

    "...Really easy to work with (keeping in mind you shouldn't be stuffing it with AIO's or crazy components).-..." Read more

    60 customers mention28 positive32 negative

    Customers are mixed about the cable management of the computer chassis. Some mention that it's awesome and well-hidden, with fantastic options in the back behind the panel. However, others say that it lacks a PSU shroud and is hard to cable manage.

    "...Optical can be removed to add a 3rd fan. Cable management is a bit tight on the back but there is spare room in the chassis near the power supply...." Read more

    "...are tons of places to zip tie wires, and the cable management basement and side areas are sufficient, considering the number of drives it will hold..." Read more

    "...The cable management is a little lacking, it took me quite a bit of effort to get the back panel on even though the cables were as well managed as I..." Read more

    "...I really like the fact that it hides your psu, and leaves room in the back for hiding cables...." Read more

    56 customers mention13 positive43 negative

    Customers are dissatisfied with the airflow of the computer chassis. They mention that the front air ventilation is very poor, the case has very little fans for air flow, and the vents placed do not allow for maximum air flow. The 1 rear fan does not blow good.

    "...-Comes with 1 rear fan, but it doesn't blow good. If your hand is 1 inch away from the fan, you wouldn't feel it.Cons:..." Read more

    "...so by logic, the error with this case is very bad airflow. extremely bad airflow...." Read more

    "...of the case has room for 2 120mm fans, but be aware that their airflow is limited, given the front panel prevents free airflow...." Read more

    "...the front panel off slightly, it is fairly unnoticeable and greatly increased airflow...." Read more

    No heating issues.
    4 Stars
    No heating issues.
    For the record I built a budget pc consisting of a ryzen 1600 CPU, asus b450-a mobo, zotac geforce gt 1050, 2 1 terabyte hddrs and 1 128 GB ssd. The evga 600 bronze ps and has the stock case fan and the CPU fan came with the cpu AND 16 gigs of ram using 2x8gb viper sticks. Let's get to the biggest issue, which in my case, pun not intended, is not the cooling issue, but the cable hideaway area by the back panel, or the lack there of. The main cables coming out of the power supply I chose have a braided sleeve making them thick. Since I'm running 2 different harddrive (which is the max amount you can w/out mods to the case) AND an ssd, I'm using 3 storage to mobo data cables and 1 triple outlet cable, etc. My GPU doesn't even need any cables , but if it did I dont know how I could get it to fit. With all that said, the issue on everyone else's minds is airflow, which I dont really get. I have no airflow issues and even with my system set to performance mode in the bios, my pc is cool to the touch. I open it up and yeah your gonna feel heat, but that's really only near the input side of the fans, but basic science tells me that that means the fans are doing their jobs. I will be changing the single fan out for triple 120 mm rgb fans, but that's more for looks than performance. Other than that, it has rubber stoppers on its legs to keep it from sliding, it does come with 3 color options, but I opted for red. It comes with all the necessary hardware and for a beginner case, you cant beat it. This was my first time building a pc and I feel this case really enabled me to actually learn and try different things. Oh, and where else are you gonna find a severely underpriced case that has a tempered glass side viewing panel!? This case is a steal, and cooler master is name brand so you know they are going to make the best they can even with only a $50 sell price.
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    Top reviews from the United States

    Reviewed in the United States on April 23, 2018
    Color: MB600L Red TrimStyle: MB600LVerified Purchase
    8 people found this helpful
    Report
    Reviewed in the United States on August 27, 2023
    Color: blackStyle: Micro-ATX TowerVerified Purchase
    Customer image
    5.0 out of 5 stars Perfect!
    Reviewed in the United States on August 27, 2023
    The case is great, small, and it comes with black, red, and white brackets so you can change them whenever you like. I changed mine to white for my theme. It was super simple and only took a few minutes. All-in-all, I recommend this if you’re looking for a small and compact case for your pc.
    Images in this review
    Customer image
    Customer image
    Reviewed in the United States on January 21, 2023
    Color: MB600L Red TrimStyle: MB600LVerified Purchase
    Reviewed in the United States on November 12, 2017
    Color: MB Lite 3.1Style: Micro-ATX TowerVerified Purchase
    Customer image
    5.0 out of 5 stars Your No.1 go to mATX Case when it comes to pricing and beauty!
    Reviewed in the United States on November 12, 2017
    I initially ordered this knowing and realizing IT IS an mATX, but I don't know what was I thinking, I did not expect it to be this tiny and this light! Hahaha only word to describe it is.. 'Cute'!

    Pros:
    - Great Price ($43 in my case).
    - Can't find anything as beautiful/attractive as this.
    - Comes with 3 color trims/pieces to change up your looks.
    - Really easy to work with (keeping in mind you shouldn't be stuffing it with AIO's or crazy components).
    - A removable Hard-disk Drive cage!!!
    - Fits any graphics card you throw in it!
    - Beautiful Front IO Combo!

    Cons:
    - Wouldn't have hurt if it was 1 centimeter wider (I don't know if all mATX got standard width), but it was a little tight to close that left panel.
    - I don't know if I did not do enough research or what, but I was a bit disappointed with the clear/see-through side panel... I thought it was a tempered glass panel.. turns out it was just plastic! :\ But it still looks cool!
    - I also just wish they included one of those SSD mounts, so I could stuff the SSD in the back of the Mo.Bo mount and get it out of my face.

    I'm not exactly complaining. No, I'm more than happy, I'm just giving my honest opinion on what they could've done a bit better. All in all, this was a great and happy purchase, totally recommended!
    Images in this review
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    8 people found this helpful
    Report
    Reviewed in the United States on September 17, 2017
    Color: MB Lite 3.1Style: Micro-ATX TowerVerified Purchase
    Customer image
    5.0 out of 5 stars Very good MATX case!
    Reviewed in the United States on September 17, 2017
    Very good case!

    -Side Panel is dimmed so you can't really see it at night unless you have LEDs.
    -Side panel is a lil bit easy to scratch.
    -No space issues in the main part of the case.
    -Airflow is good! Comes with dust filters.
    -Comes with PSU dust filter.
    -Looks very sleek and modern.
    -Front panel is transparent, but dimmed, you can put LED fans and it will see through and look amazing!
    -Feet is rubbered and has .75 inch gap from floor to bottom of the case.
    -Comes with 1 rear fan, but it doesn't blow good. If your hand is 1 inch away from the fan, you wouldn't feel it.

    Cons:
    -Space issues on back panel. You can fit .75-1inch width of cables. 24 Pin and CPU cable can fit, but you fill need 2 people to force panel back on.
    -Came with 3 different color trims. I chose White. Comes in Red, White, Back.
    Images in this review
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    29 people found this helpful
    Report
    Reviewed in the United States on June 10, 2023
    Color: MB600L Red TrimStyle: MB600LVerified Purchase
    One person found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    Pablo
    5.0 out of 5 stars Excelente
    Reviewed in Mexico on June 7, 2023
    Color: MB600L Red TrimStyle: MB600LVerified Purchase
    One person found this helpful
    Report
    Caden
    5.0 out of 5 stars Good quality case if you are looking one that fits a optical drive.
    Reviewed in Canada on November 30, 2022
    Color: BlackStyle: ATX Mid-TowerVerified Purchase
    Tiago
    5.0 out of 5 stars MUITO BOM
    Reviewed in Brazil on June 23, 2021
    Color: MB600L Red TrimStyle: MB600LVerified Purchase
    Kazothylket
    5.0 out of 5 stars I love it
    Reviewed in Canada on July 12, 2020
    Color: MB600L Red TrimStyle: MB600LVerified Purchase
    Customer image
    Kazothylket
    5.0 out of 5 stars I love it
    Reviewed in Canada on July 12, 2020
    Despite this being a beginner case and used for my first build, its very minimalist, sleek, and stylish if you want something simple. Perfect for a black with minimal black accent aesthetic.
    I'm not too big on rgb and too much light is distracting for night time gaming if you choose to put your tower on your desk, so the slightly tinted window is a very nice bonus, the window is also easy to remove and put back on without a screw.
    Lots of room if you manage the cables properly. All the parts I used are a perfect fit with plenty more room if you want to add extra stuff into it. The case itself is fairly light and even with all the parts in, is very easy to move and light enough to carry.
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    SAMUEL ROMEU
    5.0 out of 5 stars Produto excelente
    Reviewed in Brazil on June 16, 2020
    Color: blackStyle: Micro-ATX TowerVerified Purchase