# Computer case Cooler Master MasterFrame 400 Mesh Black mATX with transparent side panel and 1x 120mm ARGB fan

**URL:** https://aio.lv/en/product--cooler-master-mf400m-khnn-s00--12369304
**Data updated:** 2026-04-26 20:42 (EEST)
**Category:** Computer Cases
**Manufacturer:** Cooler Master
**Manufacturer code:** MF400M-KHNN-S00
**EAN:** 4719512162651
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 140.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 116.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cooler-master-mf400m-khnn-s00--12369304

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 8.84 EUR |

## Summary description

Cooler Master MasterFrame 400 Mesh is an mATX computer case in black featuring a transparent side panel and one 120mm ARGB fan. Designed for micro-ATX builds, it provides front mesh ventilation for airflow and showcases internal components through the windowed side. Suitable for compact gaming or workstation systems that need efficient cooling and visual presentation.

## Long description

Cooler Master MasterFrame 400 Mesh Black is a micro-ATX computer case designed to combine compact dimensions, effective airflow and a clear view of internal components. The case includes a transparent side panel and one preinstalled 120mm ARGB fan, and features a front mesh panel to support intake airflow. It is intended for mATX motherboards and smaller builds where space efficiency and thermal performance are required.
Advantages
The MasterFrame 400 Mesh offers a balance of ventilation and component visibility: the front mesh improves airflow to intake cooling components while the transparent side panel provides an unobstructed view of the interior. The included 120mm ARGB fan provides basic lighting and airflow out of the box, reducing the need for immediate accessory purchases. Its compact mATX form factor allows installation in smaller setups without compromising on standard desktop hardware compatibility.
Suitable for
Compact gaming PCs using micro-ATX motherboards
Home or office workstations requiring a small footprint
Builds where visibility of components (RGB lighting, cable management) is desired
Systems that benefit from improved front intake airflow
When it may not be suitable
Because this is an mATX case with a compact internal layout, it may not be suitable for full-size ATX motherboards or builds requiring many large expansion cards. High-end cooling configurations such as multiple large radiators or very long GPU + extensive storage arrays may be limited by available internal space and mounting locations.
Key specifications
Form factor: micro-ATX compatible
Side panel: transparent windowed panel
Preinstalled cooling: 1 × 120mm ARGB fan
Front panel: mesh design for intake airflow
Drive bays and expansion: accommodates typical mATX expansion slots and 2.5/3.5" drives depending on internal configuration
Front I/O and accessibility: standard top/front I/O layout for small cases (power, USB, audio) — check actual panel configuration before purchase
How to use
Install a micro-ATX motherboard and standard-length power supply following the case manual and manufacturer mounting points. Route cabling through the provided openings and secure drives in available 2.5" or 3.5" bays. Use the front mesh area for intake fans and position the included 120mm ARGB fan according to the case’s recommended airflow direction. If additional cooling or lighting is required, compatible ARGB headers on the motherboard can be used to synchronize lighting effects.
What to consider before purchase
Confirm motherboard form factor is micro-ATX or smaller
Check GPU length and CPU cooler height against the case’s internal clearance
Verify the number and types of drive bays you need (2.5" vs 3.5")
Ensure your power supply length fits the compact chassis
Usage recommendations
For balanced cooling, use the front mesh for at least one intake fan (in addition to the included 120mm ARGB) and ensure unobstructed airflow paths. Keep cabling tidy to maintain airflow and consider adding one exhaust fan at the rear or top if thermals require it. Match ARGB connections to a compatible header or controller to manage lighting effects.

## FAQ

### How much does the Cooler Master MasterFrame 400 Mesh mATX case cost, and is it available for purchase?

The price is 140.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 09.07.2026 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Cooler Master MasterFrame 400 Mesh mATX case 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

## Image

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