# PC case Cooler Master Elite 300 Mini Tower Black

**URL:** https://aio.lv/en/product--cooler-master-e300-kn5n-s00--10060083
**Data updated:** 2025-12-30 08:38 (EET)
**Category:** Computer Cases
**Manufacturer:** Cooler Master
**Manufacturer code:** E300-KN5N-S00
**EAN:** 4719512130872
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Cooler Master Elite 300 Mini Tower is a compact PC case designed for efficient cooling and easy assembly. It supports ATX power supplies and features a bottom-mounted PSU for improved airflow. The case accommodates up to three HDD sizes (2.5", 3.5", 5.25") and includes one pre-installed 120 mm rear fan, with support for additional 120 mm fans at the front. Its dimensions are 203.5 mm (W) x 370 mm (D) x 410 mm (H), making it ideal for small setups.

## Long description

The Cooler Master Elite 300 Mini Tower Black is a compact micro-ATX PC case designed for efficient cooling, straightforward assembly and a minimized footprint. The case supports Mini-ITX and Micro-ATX motherboards, ATX power supplies mounted at the bottom, and offers options for tempered glass or steel side panels. It includes one pre-installed 120 mm rear fan, a large front intake grill with dust filtering, and space for multiple additional fans and radiators to maintain system temperatures under load.
Advantages
The Elite 300 combines a small footprint with support for long graphics cards (up to 345 mm) and tall CPU coolers (up to 161 mm). Its front panel provides large filtered intakes for improved airflow, and the ventilated PSU shroud conceals cables while allowing multiple PSU orientations. Builders can choose between tempered glass or steel side panels and use a toolless, removable HDD cage to increase compatibility with longer PSUs or install 2.5"/3.5" drives quickly.
Suitable for
Compact gaming builds using Micro-ATX or Mini-ITX motherboards
Home or office productivity PCs where space saving is important
Systems requiring multiple cooling options (fans and front/top radiators)
Key specifications
Form factor: Mini Tower (supports Mini-ITX, Micro-ATX)
Dimensions (W x D x H): 203.5 x 370 x 410 mm
Material: Steel and plastic
Colour: Black with full black interior coating and PSU cover
Drive bays: 2 x 3.5", 2 x 2.5", 1 x 5.25"
Pre-installed fans: 1 x 120 mm rear
Fan support: up to five 120 mm fans and front/top radiator support
Maximum GPU length: 345 mm
Maximum CPU cooler height: 161 mm
PSU: ATX (not included); ventilated PSU shroud
Front I/O: 2 x USB 3.2 Gen 1 Type-A
Weight: 4.6 kg
How to use
Install a Mini-ITX or Micro-ATX motherboard and mount an ATX power supply in the bottom compartment, routing cables under the PSU cover for a clean layout. Fit storage drives using the toolless HDD cage or the dedicated 2.5" mounts; remove the HDD cage if you need additional clearance for a long PSU. Add case fans or radiators in the supported front, top or rear locations to achieve the desired cooling balance. Choose the tempered glass side panel to display components or the steel side panel to emphasize a more enclosed configuration.
Usage recommendations
For optimal airflow, keep the front intake area clear and use at least one front intake fan in addition to the pre-installed rear fan. If installing a long GPU, remove the HDD cage to improve PSU and cable routing clearance.

## Specifications

### Design

| Feature | Value |
|---|---|
| Type | PC |
| Form factor | Mini Tower |
| Supported motherboard form factors | Mini-ITX, Micro ATX |
| Number of 3.5" bays | 2 |
| Number of 2.5" bays | 2 |
| Number of 5.25" bays | 1 |
| Side window | No |
| Material | Steel, Plastic |
| Product colour | Black |
| Anti-dust filter | Yes |
| Maximum CPU cooler height | 165.5 mm |
| Maximum graphics card length | 365 mm |
| Maximum PSU length | 160 mm |
| Cable management | Yes |

### Power supply

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

### Ports & interfaces

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

### Cooling

| Feature | Value |
|---|---|
| Number of front fans supported (max) | 2 |
| Front fans diameters supported | 120 |
| Rear fans diameters supported | 120 |
| Top fans diameters supported | 120, 140 |
| Number of rear fans supported (max) | 1 |
| Number of top fans supported (max) | 2 |
| Rear fans installed | 1x 120 mm |
| Rear radiator sizes supported | 120 |
| Front radiator sizes supported | 140, 120 |
| Top radiator sizes supported | 280, 140, 240, 120 |

### Storage

| Feature | Value |
|---|---|
| Supported HDD sizes | 2.5, 3.5, 5.25 |
| HDD/SSD combo cage | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 4.6 kg |
| Height | 410 mm |
| Width | 203.5 mm |
| Depth | 370 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 5700 g |
| Package depth | 472 mm |
| Package height | 470 mm |
| Package width | 267 mm |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### 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 2.5" 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.

### Where can I download the instructions for PC case Cooler Master Elite 300?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

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