# PC Case Cooler Master MasterBox 540 Desktop Black, Transparent

**URL:** https://aio.lv/en/product--cooler-master-mb540-kgnn-s00--4134315
**Data updated:** 2026-01-07 09:56 (EET)
**Category:** Computer Cases
**Manufacturer:** Cooler Master
**Manufacturer code:** MB540-KGNN-S00
**EAN:** 4719512117927
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 135.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 112.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cooler-master-mb540-kgnn-s00--4134315

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 6.88 EUR |

## Summary description

The Cooler Master MasterBox 540 is a stylish desktop PC case featuring a black and transparent design. It supports ATX power supplies and accommodates front fans of 120 and 140 mm, with one 120 mm rear fan pre-installed. The case supports 3.5" HDDs and has dimensions of 208.6 mm width, 499.3 mm depth, and 498 mm height, making it a versatile choice for gamers and PC builders.

## Long description

The Cooler Master MasterBox 540 is a desktop PC case with a black DarkMirror front and a full-width iridescent ARGB Ether front panel. The front features customizable ARGB lighting strips behind a transparent façade and includes a controller that can sync lighting with compatible motherboards. The top panel is fully removable for easier routing and installation of large radiators and fans, while a tempered glass side panel provides tool-free access secured by pins with an optional screw for extra fastening. The case supports multiple cooling configurations and a ventilated power supply shroud for flexible PSU orientation.
Advantages
The ARGB Ether front panel offers an automotive-inspired diffuser and integrated lighting structure for a distinctive illuminated front. Standardized ARGB connector and included controller allow both software and hardware control with preloaded lighting presets and a routed RESET/ARGB button. A removable top panel and screwless tempered glass side make assembly and component access simpler, and the breathable PSU cover enables installation of actively or passively cooled power supplies.
Suitable for
Custom gaming PC builds requiring ARGB lighting and high airflow
Liquid-cooling setups using dual 360 mm radiators (top and front)
Systems needing easy access during assembly or upgrades
Builders who want a tempered glass side panel with tool-free access
Key specifications
Form factor: Desktop; supports Mini-ITX, Micro ATX, ATX, EATX
Dimensions (W×D×H): 208.6 × 499.3 × 498 mm
Weight: 7.7 kg
Bays: 2 × 3.5" HDD, 4 × 5.25"
Pre-installed fans: 1 × 120 mm rear
Fan support: up to seven 120 mm fans
Radiator support: dual 360 mm (top and front)
Front panel: ARGB Ether with DarkMirror finish; ARGB connector and controller included
Side panel: Tempered glass, screwless pins with optional screw
Material: Mesh, plastic, tempered glass, steel
Front I/O: 2 × USB 3.2 Gen 1 Type-A
Power supply: ATX (not included); ventilated shroud for flexible fan orientation
How to use
Install the motherboard and components according to the motherboard and component manufacturers’ instructions. Connect the included ARGB controller to the front panel connector or to a compatible motherboard ARGB header to manage lighting. Remove the top panel when fitting large radiators or routing tubing and use the tempered glass side panel pins for quick access during assembly; secure with the optional screw if additional retention is desired. Place the PSU in the shroud and choose fan orientation based on cooling preference, ensuring ventilation openings are not obstructed.
Usage recommendations
For best compatibility, verify motherboard ARGB header type before connecting; use the included controller if your motherboard lacks a compatible header. When installing liquid cooling radiators, remove the top panel first to improve clearance and routing. Ensure the PSU ventilation aligns with the chosen orientation and allow clearance for cable management behind the motherboard tray.

## Specifications

### Design

| Feature | Value |
|---|---|
| Type | PC |
| Form factor | Desktop |
| Supported motherboard form factors | Mini-ITX, Micro ATX, EATX, ATX |
| Number of 3.5" bays | 2 |
| Number of 5.25" bays | 4 |
| Side window | Yes |
| Material | Mesh, Plastic, Tempered glass, Steel |
| Product colour | Transparent, Black |
| Illumination | Yes |
| Anti-dust filter | Yes |
| Illumination colour | Red, Green, Blue |
| Maximum CPU cooler height | 165 mm |
| Maximum graphics card length | 410 mm |
| Number of expansion slots | 7 |
| Maximum PSU length | 295 mm |
| Illumination location | Case fans, Front |
| Reset button | Yes |
| Tempered glass panel(s) | Yes |

### Power supply

| Feature | Value |
|---|---|
| Power supply included | No |
| Supported power supply form factors | ATX |

### Ports & interfaces

| Feature | Value |
|---|---|
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
| Audio input | Yes |
| Audio output | Yes |

### Cooling

| Feature | Value |
|---|---|
| Number of front fans supported (max) | 3 |
| Front fans diameters supported | 140, 120 |
| Rear fans diameters supported | 120 |
| Top fans diameters supported | 140, 120 |
| Number of rear fans supported (max) | 1 |
| Number of top fans supported (max) | 3 |
| Rear fans installed | 1x 120 mm |
| Rear radiator sizes supported | 120 |
| Front radiator sizes supported | 360, 280, 240, 140, 120 |
| Top radiator sizes supported | 120, 140, 240, 280, 360 |

### Storage

| Feature | Value |
|---|---|
| Supported HDD sizes | 3.5 |
| HDD/SSD combo cage | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 7.7 kg |
| Height | 498 mm |
| Width | 208.6 mm |
| Depth | 499.3 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 9030 g |
| Package depth | 558 mm |
| Package height | 584 mm |
| Package width | 290 mm |
| LED controller | Yes |

### Other features

| Feature | Value |
|---|---|
| Volume | 51.87 L |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733080 |

## FAQ

### How much does the PC Case Cooler Master MasterBox 540 cost, and is it available for purchase?

The price is 135.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 26.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can PC Case Cooler Master MasterBox 540 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Cooler Master products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Cooler Master service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, form factor, number of 3.5" bays, number of 5.25" bays, side window, power supply included, usb 2.0 ports quantity, usb 3.2 gen 1 (3.1 gen 1) type-a ports quantity, weight, supported motherboard form factors, material, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4134315/64949416_large.webp