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Cooler Master

Cooler Master MasterBox 520 Mesh Blackout Airflow ATX Mid-Tower, Mesh Front Panel, Tempered Glass Panel, E-ATX up to 10.7”, Gen2 Type-C, Three CF120 120mm PWM Customizable ARGB Fan (MB520-KGNN-S00)

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Style: MB 520 Mesh


Features

  • FineMesh Performance Front Panel: Large mesh intakes offer unrestricted airflow and stellar thermals for demanding systems.
  • Three 120mm SickleFlow Fans Included: Pre-installed 120mm SickleFlow fans provide supeior airflow, ensuring low temperatures and high performance even the most intense gaming sessions.
  • Removable Top Panel: The top panel is entirely removable for improved access and easy installation of cooling solutions such as fans and radiators.
  • Screwless & Tool-Free TG Side Panel: The tempered glass side panel is secured with pins for easy removal, facilitating quick, easy installation.
  • Versatile Cooling Options: Supports up to seven 120mm fans and dual 360mm radiators on the top and front panel.
  • Removable HDD cage: The HDD cage is completely removable for improved access during assembly and system upgrades.
  • Upgraded Removable Dust Filter Bracket: The bottom dust filter bracket is robust and locked sturdily in place during travel, remaining easy to remove for cleaning purposes.

Description

MasterBox 520 Mesh Blackout Edition is the ideal chassis for both novice and experienced gamers alike, providing users multiple options in case design to satisfy different needs. Whether you place upmost value on system performance and high-quality gaming experiences, or sleek aesthetics and an outlook that stands out, MasterBox 520 Mesh Black Fan Edition has something in for you. Pre-installed with three 120mm SickleFlow fans, the MasterBox 520 Mesh Black Fan Edition ensure systems installed runs cool and smoothly regardless of hardware choice. Additional mechanical upgrades such as a removable top panel and robust dust filter ensure a pleasant, hassle-free installation experience.

Brand: Cooler Master


Motherboard Compatability: Mini ITX


Case Type: Mid Tower


Recommended Uses For Product: Gaming


Color: ATX Mid-Tower ARGB


Material: Tempered Glass


Power Supply Mounting Type: Bottom Mount


Cooling Method: Air


Model Name: MB520-KGNN-S00


Fan Size: 120 Millimeters


Supported Motherboard: Mini ITX


Case Type: Mid Tower


Power Supply Mounting Type: Bottom Mount


Cooling Method: Air


Fan Size: 120 Millimeters


Total Expansion Slots Quantity: 7


Total USB 2.0 Ports: 2


Total Usb Ports: 2


Hard Disk Form Factor: 3.5 Inches


Internal Bays Quantity: 5


Number of Fans: 3


Light Color: ARGB


Color: ATX Mid-Tower ARGB


Enclosure Material: Tempered Glass


Item Weight: 7 Kilograms


Brand: Cooler Master


Model Name: MB520-KGNN-S00


Manufacturer: Cooler Master


UPC: 884102098802


Global Trade Identification Number: 02


Mfr Part Number: MB520-KGNN-S00


Model Number: MB520-KGNN-S00


Warranty Description: 2 Years


Item Type Name: Gaming Computer Case


Antenna Location: Gaming


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Very Nice Case with ARGB and well worth $60!
Style: MB311
This is by far the best MicroATX $60 case on the market. Comes with 2 ARGB fans for that price. I got the mesh but they do have it in tempered glass front. Both case have a tempered glass side panel. Pros: 1. The 2 included fans are ARGB. Also has room for up to 6 120mm fans. 3 up front 2 on top and 1 in the back. 2. Plenty of room for SSD's and 2 3.5 hard drives. Cage can be removed also. They only include 2 ssd's mounts which some might say is a con. 3. Cable management is good and they do include zip ties. 4. Plenty of room for a size-able video card. 5. Solid construction high quality and I never cut myself on anything sharp lol. Cons: 1. Not a fan of the ssd mounting as I was confused on how it worked. 2. No rubber grommets but for $60 I can see why. 3. After putting video card there is very little room for it to breathe. There is 2 places to mount ssd's under the video card why? I have no idea as it would make the video card work harder for airflow. 4. Dust filter under power supply is removable but, is way harder to remove as it is not the side in type. Top air filter is magnetic why they could do the bottom they same is beyond me. 5. Tempered side panel does set flush with case but be careful when taken it off. Nothing to hold it in place after you remove screws and will fall. Be careful! Tempered glass can break if you drop it on a corner. I really like this case as I believe it is a nice case for what you get for the price. I would like to see in the next version Cooler Master make the bottom dust filter either side in and out or do it like the top with magnets. Cheaper version without ARGB fans. Maybe make it in white. Options would be nice like rubber grommets. ... show more
Reviewed in the United States on April 4, 2020 by Jerry P.
    • Just like my old one.
Style: MB311
I got this after my old one's glass shattered. It has been a good case to me and I recommend it. It has some good cord/cable management and it has fantastic airflow from the front. It's perfect size to move, not too big or small. Highly rexcomend this as it comes with the ARGB stuff already hooked up. All you need it a MOBO with the right headers. ... show more
Reviewed in the United States on January 22, 2025 by Anonymous
    • Budget Master
Style: MB311
MasterBox MB311L ARGB This case has been a pleasure to work with. There is so much airflow, the rgb fans are a great bonus, and the case feels sturdy. It has enough room to fit a deepcool assassin 3, and the back panel opens up the motherboard backplate, so you can swap to a different cooler without removing the motherboard. The tempered glass looks nice, and is recessed enough that you don't worry about it dropping when unscrewing it. The screws stay in the glass, so they don't get lost, and the side panel mounting mechanism is very easy to work with. Cable management is good, and the PSU shroud looks excellent. I will recommend this case to anyone looking for a budget case. ... show more
Reviewed in the United States on June 14, 2020 by nope
    • I like the case, but the Fans & some details dissapoint
Style: MB311
Build Quality: 3/5 Looks: 4/5 Airflow: 4.5/5 Layout: 4.5/5 Features: 3.5/5 Overall: 3.9/5.0 First off, the case itself is fine, and I'd give it 4 stars for the case. But a good part of the attraction are the included RGB LED front 120mm fans. BOTH of my fans have a very audible 'clicking' noise that changes frequency with fan speed. I check that no wires or obstructions are causing it, but it's coming from the motor housing itself. The fans look great and move air quietly, if it weren't for this annoying clicking. This is for a customer's system, not my own, so I'm hoping they won't care, but it'd drive me up the wall if it were my PC. If your more than 3FT from the PC and don't crank the front fans, you probably won't care. That being said, I've been using Cooler Master fans for years, and many of them have a very quiet clicking when they spin, but not usually enough to be audible more than 6 in away. This is easily 4x to 8x as loud. While we're discussing fans, why is the RGB controller a 3 pin female connection? Most motherboards have a pin layout for RGB control. I still have to figure this out. It even says "Gigabyte" on the connection, and I have a Gigabyte board. I wish RGB standard were more clearly defined,. On to the rest of the case. I like the layout and cooling options. For a Micro ATX case, this has very good airflow and cooling options. There is plenty of space up top for up to a 280mm air cooler, and the dual tower cooler I used also fit fine. It doesn't come with any rear fans, but I knew this going in and don't take off any points at this price point for that. I like that there are 2x 2.5 mounts on the back of the motherboard tray, but there are also 2x 2.5 mounts above the PSU shroud. This is fine, but they only give you hardware for 2x mounts, which is weird since there are 4 areas to mount total. I like the removable 3.5" drive bay, and I like all the space for the size of this case. The layout feels very modern and is easy to work on. However, the bend off expansion slot fillers are annoying. They are hard to get off once a motherboard is in. I know it's a cheap case, but these should be screwed in spacers, not this junk. I expect this on a $40 case, not a $70 case. Cooler Master, charge the extra Twenty Cents and give real expansion slot fillers, please. Overall, if you want a cool looking case with good airflow and a glass side panel on the cheap, this is a good option. So long as you don't mind potentially "clicky" fans and some of the quality shortcuts. ... show more
Reviewed in the United States on June 9, 2020 by James Kirk
    • Really good budget case (When it was $60 USD)
Style: MB311
This is a great budget case to have. It filters dust in every which way it intakes air. Comes included with 2 front fans and has great support for the upper placement of radiators and decent support for front radiators. Has a pretty good space for large CPU coolers. Can handle almost any GPU size, there are a few that are cutting close and not allowing much airflow at all out of the card. There is space for 4 SSD-specific placements and has a removable hard drive bay that can hold 3 hard drives or another 3 SSD's. The cabling for this case is pretty good but the clearance for a normal power supply is about 3 inches with the hard drives bay installed but this is a smaller case and there is adequate space to put cables around that your not using. Front IO is pretty good having a restart switch starting on the left with a headphone jack and microphone jack, A lit up Coolermaster logo power button and two USB 3.0 ports. A pretty solid case for $60 USD and it only costs 20 dollars to buy another Addressable RGB fan. ... show more
Reviewed in the United States on May 10, 2021 by Rulon

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