Cooler Master MasterBox MB520 RGB ATX Mid Tower Case Tempered Glass Window 3x RGB LED Fans - Black - MCB-B520-KGNN-RGB
Condition: Used - Like New
Buy Now, Pay Later
As low as
$15.00
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Sep 25 – Sep 26
Recently Viewed
Style: MB520
Features
- DarkMirror Front Panel: Shade light through the DarkMirror front panel for a sharper contrast of the ARGB fans
- Mesh Intakes: Large, mesh intakes span each side of the front panel to provide additional airflow to system
- ARGB Lighting System: Three pre-installed ARGB fans can be managed by either the motherboard or an included controller, connected by the included splitter, to create a comprehensive ARGB lighting system
- Tempered Glass: Hardware, custom-loop cooling, and the pure pride of the builder is shown in panoramic view through an edge-to-edge tempered glass side panel
- Optimized Airflow: Filtered ventilation on the top panel provides additional thermal support while also offering mounting options for future cooling upgrades
Description
The MasterBox MB520 ARGB is the optimum ATX gaming PC chassis for showing off component lighting while keeping systems cool. The DarkMirror front panel is smoked a shade darker to add sharper contrast to the pre-installed ARGB fans. On each side of the front panel, mesh ventilation spans from top to bottom to provide the interior with considerable airflow. The front mesh ventilation works collectively with the top and rear ventilation to optimize airflow. With support for up to seven fans and front, top, and rear liquid cooling components, there is a high potential for both air-cooled and liquid-cooled builds. With a tempered glass side panel, ARGB fans, and a DarkMirror front panel, every build is properly displayed inside the MasterBox MB520 ARGB.
Brand: Cooler Master
Motherboard Compatability: ATX
Case Type: Full Tower
Color: ATX Mid-Tower ARGB
Material: Tempered Glass, Alloy Steel, Plastic
Power Supply Mounting Type: Bottom Mount
Cooling Method: Air
Item Weight: 6.59 Kilograms
Product Dimensions: 19.53"D x 8.58"W x 18.43"H
Number of Expansion Slots: 7
Wireless Type: 802.11a
Brand: Cooler Master
Item model number: MCB-B520-KGNN-RGB
Item Weight: 14.5 pounds
Product Dimensions: 19.53 x 8.58 x 18.43 inches
Item Dimensions LxWxH: 19.53 x 8.58 x 18.43 inches
Color: ATX Mid-Tower ARGB
Computer Memory Type: PC1066
Manufacturer: Cooler Master USA, Inc.
Is Discontinued By Manufacturer: No
Date First Available: September 20, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 25 – Sep 26
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: MB530P
Edit: 10-13-2020- Still using the case, it works great! Note: **You absolutely CAN fit a radiator in the top of the case. ** I have pictures included from my original install that plainly show that it is possible, and even easy. The price has gone up a bit, probably from how popular the case is, but it's well worth it! _______ original review below__________________ I've included screens of my build. Hopefully you can see on the bottom just how "clean" you can make this. I have no external HDDs or SSDs and am using two M.2 drives to make for an extremely quiet build. If you don't read my whole review, be sure to go to the end where I mention something that messed with me for about 2-3 hours that I finally figured out. (A mysterious SATA3 connector.) Going to list off the "pros" of this case: 1. The unobtrusive "cutouts". Cable management is a thing! And they do a great job here on this case. Along the bottom where your MOBO meets the case, there are several small holes that you can hardly see until you buy the thing. If you look at my attached pictures, you can get the idea how I ran the cables up through the bottom and did a quick loop back to plug in items like the HD Audio, USB 2 and in my case, the ARBG cable, etc. 2. Great cutouts on the sides. I expect to get middle cutouts -but these have some nice rubber padding that keeps a minimum of light from showing through. Additionally, they had the perfect set up for hiding the CPU power at the top of the case/mobo as well. (Look closely at the top left to see what I mean...) 3. Airflow. It's hard to get a really good feel for just how much flow is available, but the way they situated the glass panel in the front, and cutouts under the fans as well as on the sides means a TON of air flows through the case. As an added effect, when you look directly at the side of the case, the vents almost GLOW with the color of the fans. I built cases for 20 years and basically poo-poo'd the idea of RGB lighting (or even just plain red or green lights on fans) for years. But about a year ago, I finally got on board, and this case REALLY makes RGB lighting come alive. 4. The fans. Lots of complaints from current buyers for some reason. Again, I have no HDDs, though I do have a radiator. I also have the Asus ROG Strix x470 mobo - and it comes with an automatic fan adjuster (that works with overclocking). I'm running my CPU at a consistent 4000Ghz (about an 8 or 10% overclock) and it runs BELOW room temperature. That's with a coolermaster liquid cooler and this case fans on it. Yes, they stay on and only have one speed, but all things considered, it's super quiet, looks great, and does the job beautifully. 5. The glass panels and the metal panel cover on the back. The glass is legit. It's HEAVY. I've also dropped it, and it's durable. I love the grommets they use - it's the first time I've had glass panels that the screws stayed right inside the panel, and it's got elegant hooks on the bottom that make re-attaching the cover the .. seriously, bar none, and I've been a data center sys admin for 20+ years, and have probably put the covers on literally a thousand servers and desktops - the easiest cover to open, remove and re-attach of ANY PC/Mac/Tablet/Phone, etc etc - that I've ever touched. As for the metal cover - I love how easy it was to attach. I love that when I put the glass panel back on, since the metal is already lining all your cables up, it (again) makes the glass uber easy to put back on the case. (See my attached picture). All those cables (which include PCI-e and power for the MOBO, the fan cables for RBG and power, the case connectors, etc) - all tucked away, nice and neat under that metal panel. 6. Bells and whistles. It's got an extra inch or two of width. Makes fitting in radiators on the top of the case actually a thing. (I had to shop around just to find a case that would do that!) If you read the instructions - and the fact it has its own RGB controller (though it's only a button on the top of the case, so it's rather simplified controls...) that's frickin' cool. USB 2 and 3 (two of each) on the top of the case. I love that the power button has RGB and you can control it. Never, EVER seen a case that let me change the power button color. (Or rotate it along with the rest of the fans, etc). Comes with FOUR fans (One is not RGB, though). Oh, and it's ARGB, if you have a controller (or MOBO) that can take advantage of it. That makes this case REALLY economical. Cons: As someone else mentioned, the area for your power supply is pretty tight. Be sure to test the size of everything first. I'm using a modular 750W PSU, and it fits fine, but I had to plug all my cables that I wanted in first - it just didn't fit/wasn't enough room to try to plug them in after it was tucked in. I originally put my PSU in first, before attaching the modular cables and had to take it back out... Please be sure to look at the advertising material about the case. The pictures that show where your radiator goes are accurate. I used a 240MM radiator on the top and it fits beautifully. (See attached pictures.) It doesn't have a ton of extra screws. That part is true. The instructions are not great. The fact that it ONLY has HDD lights and power switch may throw you for a loop. (I was thankful of this, quite honestly.) There is a connector that came with this thing that REALLY messed with me. It's a SATA3 connector. Just plug it into your power supply. I spent hours looking for what it was supposed to plug into. Other notes (and sorry this got so long! But, I wanted to make sure I put in all the information I could, because this case delivers a TON of value...) Also, the controller cable for the RGB fans included ARE compatible with Asus, Asrock, Gigabyte and MSI. Said controller allows you to use all those manufacturer's motherboards. (One review listed 3 of the 4 above, another person said a motherboard controller couldn't be used at all. Yet, in the bottom row of pictures in Cooler Master's Amazon description (above) in the middle picture you can see the cable right there that allows you to use 4 manufacturer's motherboards.) If you don't have that cable and need it, be sure to return the item and get a version that has the cable. It works great. If you don't have one of the above manufacturers, the button next to the power button works as your RGB controller. (Note: it's not a Reset button. This case only doesn't come with a reset cable or button. Only Power switch and HDD lights. TL;DR: Given that it comes with 4 fans, 3 of them are ARGB, and it's a slightly larger mid-tower that can accommodate a 2 fan radiator (hard to find for less than $150!!) - this is my new favorite case. No, the fans aren't the equivalent of an $80 set, but they're darn close. They are quiet, completely configurable and with all the other bits of hidden engineering (air flow, cut outs, cable management, compatibility with mobo manufacturers, etc) - you get more bang for your buck than nearly any other case. If you check out various review sites regarding this case, you'll see that they agree with me. ;) Nice job, Coolermaster!
...
show more
Reviewed in the United States on February 28, 2019 by Agile Agile
Style: CMP 510
Pros 1 Nice case, Glass side cover is good quality tinted looks great, 2 good value, no sharp edges, easy to build in 3 Good cable management, good quality cables, 4 Included ARGB fans are quiet (well almost) 5 Great air flow, 6 I like the fact there is no window in PSU basement 7 3.5 drive cage is easily removable, 2X 2.5 inch drive mounting provisions behind motherboard with rubber gromet mounting make switching drives easy no tool removal. 8 ARGB controller included (well kind of) 9 front fans can use 3 pin fan header or Molex. you can run all 3 off one 3 pin fan header and daisy chain the other 2 via Molex Cons 1 not compatible with my Asus Rampage 3 Gene Micro ATX because it lacks provisions for 3 standoffs at the bottom of this motherboard, had to use my P6X58D-e instead. 2 One of the included ARGB fans is defective makes noise and vibration, Cooler Master dose not sell these fans separate if they fail outside of warranty, I will need to return it to cooler master and pay for the postage this could take over a month. 3 The ARGB controller $ucks will not display static colors only breathing and will not display only one color in other lighting effects no dimmer for lighting and no front IO to control ARGB 4 May not be compatible with 240mm (120x2) AIO, might block access to or even come in contact with ram, I couldn't mount my cooler master 120mm AIO at the top front because of this. I wanted direct air from the front fans now all the hot air from the GPU and other components must exhaust through it from the rear. 5 no provisions for vertical mounted GPU riser 6 No removable front dust filter 7 side panel screws are not threaded well, I recommend chasseing the threads with tap and die before installation my old Cooler master side case screws feel solid and thread in and out as they should, these feel cheap. 8 Would be nice if the panels were hinged, can be difficult to install side panels. but once installed gaps look good. be careful with back side panel the metal can bend easily. 9 No front USB 2.0 only USB 3.0 had to purchase a PCIE to 3.0 USB card may not be a problem for newer motherboards
...
show more
Reviewed in the United States on April 12, 2022 by BrotherMan BrotherMan
Style: ATX Mid-Tower
For the price this case has good space and it’s easy to route cables. Glad this has the slot for a disc drive, as most cases don’t anymore. I did a vinyl wrap on the inside and outside to give it some interesting character. I also made a slight modification to change the mounted glass panel to a hinged one. One note: I did want to put my cpu cooler radiator on the top, but it wouldn’t quite fit properly with the other hardware, so I had to mount it on the front panel instead.
...
show more
Reviewed in the United States on December 25, 2023 by Eluinn Eluinn