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Cooler Master MasterBox MB600L ATX Mid-Tower w/ Sleek Brushed Design, Red Side Trim, & Acrylic Side Panel

Ships from United States. Most customers receive within 4-8 days.

Sold and Shipped by NothingButSavings a-seller

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • Sleek Design w/Red Side Trim and Acrylic Side Panel
  • Supports 4 x 120mm Fans 1x Pre-Installed in the Back
  • Support up to 360mm Radiator
  • Support up to 400mm GPU/VGA Card
  • Full black coating and PSU cover

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
Master

MasterBox MB600L
Sleek and Elegant Design
The MasterBox MB600L with its sleek design, brushed front panel and red side trim gives the case an elegant outlook. The edge to edge transparent acrylic side panel provides easy access and a clear view to internal build components. A full black coating and PSU cover, for a clean build with easy cable management.

  • Sleek Design Red Side Trim
  • Acrylic Side Panel
  • Supports 4 x 120mm Fans
  • 240mm Radiator Support
  • 400mm GPU/VGA Support

GRAPHICS CARD SUPPORT UP TO 400MM

You won't ever have to worry about the fit of your graphics card, with support for even the largest, widest cards.

SLEEK AND ELEGANT OUTLOOK DESIGN

The stylish brushed front panel gives the chassis a sleek and elegant design.

Master
MasterBox Lite 3.1
Master
MasterBox Lite 5
Master
MasterBox Lite 5 RGB
Master
MasterBox MB600L
Model Number MCW-L3B3-KANN-01 MCW-L5S3-KANN MCW-L5S3-KGNN-02 MCB-B600L-KA5N-S00
Motherboard Support Micro-ATX, Mini-ITX E-ATX, ATX, Micro-ATX, Mini-ITX ATX, Micro-ATX, Mini-ITX ATX, Micro-ATX, Mini-ITX
Dimensions (L x W x H) 456 x 208 x 381mm 468.8 x 200 x 454.5 mm 468.8 x 200 x 454.5mm 464 x 212 x 454.5mm
Fans Included Rear: 120mm x 1 black fan Rear: 120mm x 1 black fan Front: 120mm x 3 RGB Fans*
(Additional controller or compatible motherboard required for RGB functionality)
Rear: 120mm x 1 black fan
Rear: 120mm x 1 black fan
Fans Support Front: 120mm x 2
Rear: 120mm x 1
Front: 120mm x 3 / 140mm x 2 fans
Rear: 120mm x 1
Front: 120mm x 3 / 140mm x 2 fans
Rear: 120mm x 1
Front: 120mm x 2 / 140mm x 2 (w/ODD)
Rear: 1 x 120mm
Radiator Support Front: 240mm x 1
Rear: 120mm x 1
Front: 240mm / 280mm / 360mm radiator (limited) up to 50mm thickness without fan
Rear: 120mm x 1
Front: 120 / 140 / 240 / 280 / 360mm radiator (limited) up to 50mm thickness without fan
Rear: 120mm x 1
Front: 120/140/240/280mm radiator (w/ODD)
Rear: 120mm x 1
Side Panel Acrylic Side Panel Acrylic Side Panel Tempered Side Glass Panel Acrylic Side Panel
Maximum CPU Cooler Height 160mm 160mm 160mm 180mm
Maximum GPU/PCI Card Length 380mm 400mm 400mm 400mm
Warranty 2 Years 2 Years 2 Years 2 Years

Learn more about the Cooler Master MCB-B600L-KA5N-S00

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
Ownership: 1 week to 1 month
Verified Owner
3/ 5
Simply Average With Faults 2/19/2020 6:15:48 PM

Pros: -Very versatile. You can move the "front panel" (which is actually on the side or top depending on how you plan to lay the case) on any of the 4 flat sides of the window. In case the photos don't explain it to you, you can lay this case on its side or stand it up like a regular box. The metal side of case, opposite the window, has rubber feet.
-The power supply can be mounted in several locations. That's a pro and a con.
-Removable magnetic filter screens on the outside of the case is pretty nice.
-The whole case (except the window and opposite side) is perforated so airflow shouldn't be an issue unless you clog the thing up with cables. So, front, back, top and bottom have vent\mounting holes all over it.

Cons: -Mounting the HDD\SSD is ridiculous. Unless there's some new power connector for these drives that I'm not aware of, once you screw the drive into the removable mount that they go on (behind\under the motherboard) you can't plug in the power connector unless your power supply comes with flat SATA power cables. My Corsair CX750 has all L style SATA power cables. The drives sit absolutely flat against the mount they screw in to so there's no way to plug them in. I still haven't come up with a workaround. Right now I have my SSD mounted by its 2 side holes on the top of the case just hanging in front of the motherboard. I have no idea what I'm going to do about my HDD.
-Pretty flimsy metal for the exterior of the case. It flexes pretty easily.
-This case is a lot smaller than I thought it would be. I have a mid tower case now that is much bigger. I figured mid tower cases would all be about the same size. Not with this one. I know they provide the measurements of the case, but how many people actually whip out a tape and start measuring stuff? Maybe that's a con because I'm lazy.
-No slot to mount a CD\DVD\Blu-Ray drive. Not that there would be space for it anyway.
-Maybe it's just me, but I'm very used to mounting a power supply on the case. Usually on the top back area or the bottom back area. Hell, even the bottom of the front of the case. This case has you mounting it inside the case not even directly against an outside wall and just kind of hanging there. This seems like the power supply will be dumping a lot of hot air into the case. Time will tell how efficient the airflow is.

Overall Review: -For someone who has a fully modular power supply (I do not) that has flat SATA power cables (Mine does not), this is a good case.
-If no CD\DVD\Blu-Ray drive is ok with you, good.
-Maybe not good for an ATX build. (Mine is ATX)

I hope this clears up some questions or concerns someone might have before buying this case. Once I figure out the kinks I'm sure everything will be fine. I'll update this review if things end up awesome or worse.

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Ownership: 1 month to 1 year
Verified Owner
4/ 5
Not bad for the price. 2/15/2020 9:55:27 PM

Pros: Huge front panel space for fans and coolers, stylish trim, nice paint/coating on the metal frame. Overall sturdy case, good ground clearance for PSU fan/airflow.

Cons: Cable management in this thing can be tricky because of the little PSU/storage drive box and limited side panel space. It definitely benefits from a modular PSU that lets you choose which cables you can do without.
Drives have very little wiggle room with standard power and SATA cable hookups, especially HDDs. Only comes with 1 120mm fan, I added 3 on the front panel and one of the wires almost couldn't reach available power jacks on the motherboard just because of the distances involved.

Overall Review: I came to this for a new build thinking I could go back to a regular mid-tower. My last one was a Coolermaster HAF full tower and you could fit anything in it, so moving down to this size again was pretty difficult compared to what I was used to.
Personally I don't care for all the clear acrylic side panel stuff and the separated PSU/storage area that seems to be hot right now but it does OK and looks slick once everything is together. The problem is getting it together, cable management in this thing is rough, and my GTX1080 side power cables had to be bent pretty aggressively to clear the acrylic side panel. On my motherboard some of the fan jacks were in hard to reach areas so I had to make some sacrifices in which fans went to particular controllers.

Still a good case for the price despite all of that. You can definitely do worse than this one.

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5/ 5
NR600 Incredible Minimalist Case 2/10/2020 10:47:04 AM

Pros: + Updated by Cooler Master: One of the HDD cage walls can now be removed (attached with screws not rivets). Creating a massive 340mm space in the basement shroud for psu and cable management.

+ Aesthetically pleasing minimalist design.

+ Plenty of room to work in. Great layout in my opinion. The tool-less 3.5" and 2.5" device storage is brilliant!

+ Great front to back airflow if you add one additional fan. Decent if left stock.

+ Both side panels fit flush, and the tempered glass side panel has a great slot-in and slide mounting mechanism.

Cons: - The two fans included are decent at best, but get the job done.

- Fit and finish was overall really great. Only one surface scratch on the top of the shroud, but it led to the discovery of the screws securing one hdd cage wall, so I'm really happy it was there.

- No USB 3.2 Type-C on the top console, but that doesn't really bother me.

Overall Review: Would absolutely recommend this case for anyone interested in an understated look and great airflow. With the addition of a second front fan, this thing is cool as ice. I received this as a gift from a friend and love everything about it!

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Ownership: 1 week to 1 month
Verified Owner
3/ 5
Poor configuration 2/6/2020 4:04:40 AM

Pros: Pros: This case is nice. It has room for everything you need, good Airflow and many spots for fan mounting

Cons: Only one fan but option to install up to 3 more, no LEDs, power Supply Area is little bit small .lacks metal adapter to mount additional 2.5’’ SSD drive(comes only with one)but there is space for installation SSD drives(don’t understand why?)

Overall Review: Good for the money, but if you have more then 2 SSD don't buy it

0 out of 2 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Really impressed! 2/5/2020 6:33:35 AM

Pros: - Efficient use of cubic footage. Really appreciate the effort to make this case small and useful
- Great airflow
- Love the magnetic screens; easy to clean
- Looks classy. Seems difficult to find a functional (and not flashy) case anymore
- USB3 in convenient location

Cons: - would prefer an option for glass instead of plastic window
- included fan is ---NOT--- PWM. I replaced with my own anyway, but might have stuck with the one provided if it was PWM
- the great airflow means extra noise unless you invest in quiet fans. For me, that was worth it. And since it provides a pro, I'm not sure it can be considered a con.

Overall Review: Highly recommended case. Same size as the MicroATX case, but with room for ATX! I just love it. The build quality is great and the included cable management is easy to use. I've paid more for cases that I liked less.

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
First Time Builder 1/28/2020 11:13:11 AM

Pros: This case worked out very well for me. It is larger than my old computer case so make sure to check the dimensions if you have space constraints. that extra space made it easier to work on for a first timer and my cables are cleanly organized in this case. There is also room for good ventilation and it looks nice.

Cons: Size if you are limited in that area

Overall Review: I recommend this case. It looks good and is easy to work with. Make sure to check the dimensions.

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Anonymous
3/ 5
not good/not bad 1/26/2020 2:59:13 AM

Pros: + dust filters on bottom and top and open front "filter" panel;
+ it'd been cool designed, when I bought it.

Cons: - plastic on the side instead of glass;
And 2 reasons why you shouldn't buy it:
- the main con is: when the front panel is set with 3 fans under it, it's too loud, but without the panel, they work great, u set the silent level and it's cool, but without this panel. Dust filters(b/t) are good.
- if u have CPU cooler like noctua U14s or something with heght 165mm, like in my case, it probably won't fit. You will close the side window, but the cooler will squeeze out the window. Noctua tells it's 165mm, but it's higher, so check it before u do sth. This is the con because many companeis tell you the max hight is 165 but they can add above this 3-5 mm, so not here.

Overall Review: I've bought it in 2018 summer/autumn, so price has changed. In those days it was the best option.
My problem with cooler fixed by using black plastic corner for slopes on Double-sided tape on frame of case, easy to do, cheap and invisible with installed window .

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Cooler Master Case 1/25/2020 10:59:38 AM

Pros: Nice case. Met all my requirements.

Cons: NONE

Overall Review: Good case for my needs.

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