Cooler Master launches the sleek-looking MasterBox 520 with tempered glass and cooler mesh options

Cooler Master MasterBox 520
(Image credit: Cooler Master)

What you need to know

  • Cooler Master launched the MasterBox 520 PC case in two variants, one with a tempered glass front window and another with a mesh panel.
  • This ATX PC case comes with three pre-installed ARGB fans from Cooler Master and can support up to seven in total.
  • Dual 360mm radiator support allows for the installation of AIO liquid coolers and a custom water-cooling loop.
  • The MasterBox 520 and MasterBox 520 Mesh will be available for $89.99 and $84.99, respectively.

Cooler Master launched three new products at IFA, comprising two cases and a vertical GPU bracket. The Cooler Master MasterBox 520 is a new ATX PC case with two versions available, one with a tempered glass window up front and another replacing it with a mesh panel. To accompany these new cases, Cooler Master also outed the Vertical Graphics Card Holder Kit V3.

Whether you're a beginner who's putting together a first PC build or one who's built more systems than you can recall, the new MasterBox 520 offers some impressive features for everyone. Available in black or white, the MasterBox 520 is versatile with most panels being removed without requiring the aid of a screwdriver. Compared to the classic MasterBox design, there's a new more robust dust filter bracket.

For cooling out of the box, Cooler Master includes three preinstalled CF120 ARGB fans. Being full ATX cases, you can install pretty much anything (and yes, that includes an E-ATX motherboard). Even the best graphics card will fit inside this chassis without an issue. 

Cooler Master MasterBox 520

(Image credit: Cooler Master)
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SpecificationCooler Master MasterBox 520Cooler Master MasterBox 520 Mesh
Form factorMid-towerMid-tower
MotherboardATX, MicroATX, Mini-ITXATX, MicroATX, Mini-ITX
I/O1x USB-A 3.2 Gen11x USB-A 3.2 Gen1
Row 3 - Cell 0 1x USB-C 3.2 Gen21x USB-C 3.2 Gen2
Row 4 - Cell 0 1x 3.5mm audio jack1x 3.5mm audio jack
Expansion7x Horizontal7x Horizontal
StorageSSD: 3+2SSD: 3+2
Row 7 - Cell 0 HDD: 2HDD: 2
Included fans3x 120mm F120 ARGB3x 120mm F120 ARGB
Row 10 - Cell 0 1x 120mm MasterFan Lite 120Row 10 - Cell 2
Front fans3x 120mm/2x 140mm 3x 120mm/2x 140mm
Top fans3x 120mm/2x 140mm3x 120mm/2x 140mm
Rear fans1x 120mm1x 120mm
Front radsUp to 360mmUp to 360mm
Top radsUp to 360mmUp to 360mm
Rear radsUp to 120mmUp to 120mm
FiltersBottom, Front, TopBottom, Front, Top
ClearanceCPU: 165mmCPU: 165mm
Row 19 - Cell 0 GPU: 410mmGPU: 410mm
Dimensions443 x 210 x 498mm443 x 210 x 498mm
MaterialsSGCC steel, tempered glassSGCC steel, tempered glass
Warranty2 Years2 Years
ColorsBlack, WhiteBlack, White

Up to two 360mm radiators can be installed for maximum cooling performance when using an AIO liquid cooler or custom water-cooling loop. Regardless of which route one takes, the MasterBox 520 offers plenty of customizability for creating a unique PC build. An ARGB fan hub is included to bring everything together and synchronize all the installed lighting.

On paper, these new cases seem to have everything one would expect to see from something included in our best PC cases collection. The new Cooler MasterBox 520 and MasterBox 520 Mesh will be available for $89.99 and $84.99, respectively.

Rich Edmonds
Senior Editor, PC Build

Rich Edmonds was formerly a Senior Editor of PC hardware at Windows Central, covering everything related to PC components and NAS. He's been involved in technology for more than a decade and knows a thing or two about the magic inside a PC chassis. You can follow him on Twitter at @RichEdmonds.