# PC case ENDORFY Regnum 400 Air Tower Black — ATX/microATX, tempered glass, 3x120mm front, GPU up to 37 cm

**URL:** https://aio.lv/en/product--endorfy-ey2a008--5696620
**Data updated:** 2026-01-21 10:59 (EET)
**Category:** Computer Cases
**Manufacturer:** ENDORFY
**Manufacturer code:** EY2A008
**EAN:** 5903018666273
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 57.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 47.51 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--endorfy-ey2a008--5696620

## 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 | 6.54 EUR |

## Summary description

Mid-tower PC case for gaming and general builds, compatible with ATX, microATX and Mini-ITX motherboards. Features tempered glass side panel, front 3x120 mm and rear 1x120 mm fans installed, support for up to eight fans and 240 mm front liquid radiators. Fits GPUs up to 37 cm, CPU coolers up to 162 mm, two 2.5" and two 2.5"/3.5" drive bays, anti-dust filters, front audio and 2x USB-A ports.

## Long description

The ENDORFY Regnum 400 Air Tower Black is a mid-tower PC case sized at 472×442×220 mm that balances roomy internal layout with a compact external footprint. It is designed for high airflow builds, featuring a mesh front panel, a tempered-glass side window and support for multiple fan and radiator configurations. The case supports Mini-ITX, Micro-ATX and ATX motherboards, fits GPUs up to 370 mm, PSUs up to 275 mm, and can accommodate either two 3.5" drives plus two 2.5" drives or four 2.5" drives.
Advantages
The Regnum 400 Air provides extensive cooling options through a mesh front panel and space for up to eight fans; four Stratus 120 PWM fans are included. It supports large radiators (240/280 mm on top and up to 360 mm in the front) for effective liquid cooling. The tempered-glass side panel allows component visibility while the internal layout supports several drive configurations and full-size components including E-ATX-width compatibility within the stated limits.
Suitable for
High-airflow air-cooled gaming or workstation builds
Liquid-cooled systems using 240/280 mm top or 360 mm front radiators
Systems requiring multiple storage drives (2×3.5" + 2×2.5" or 4×2.5")
Mid-tower ATX builds with long GPUs (up to 370 mm) and standard PSUs (up to 275 mm)
Key specifications
Dimensions: 472 × 442 × 220 mm (W × H × D)
Form factor: Tower; supports Mini-ITX, Micro-ATX, ATX
Pre-installed fans: 4 × Stratus 120 PWM (front/back)
Fan support: up to 8 fans total
Radiator support: front up to 360 mm; top 240/280 mm
Storage bays: 2 × 3.5" and 2 × 2.5" (or 4 × 2.5")
Max GPU length: up to 370 mm
Max PSU length: up to 275 mm
Side panel: tempered glass
Colour: Black
How to use
Install the motherboard according to its form factor (Mini-ITX, Micro-ATX or ATX) using the included standoffs. Mount the power supply in the PSU bay and route cables through the cable management openings. Install storage drives in the appropriate 2.5" or 3.5" mounts. Configure cooling by installing additional fans where required and fit compatible radiators: front up to 360 mm or top 240/280 mm. Secure the tempered-glass side panel to view the build once assembly is complete.
Usage recommendations
For optimal airflow and cooling, keep the mesh front unobstructed, use the four included Stratus 120 PWM fans as intake at the front and configure exhaust fans at the rear/top. Verify GPU and PSU lengths against the specified maximums before purchase and consider cable routing behind the motherboard tray to maintain unobstructed airflow.

## Specifications

### Design

| Feature | Value |
|---|---|
| Type | PC |
| Form factor | Tower |
| Supported motherboard form factors | Mini-ITX, Micro ATX, ATX |
| Number of 3.5" bays | 2 |
| Number of 2.5" bays | 2 |
| Side window | Yes |
| Product colour | Black |
| Anti-dust filter | Yes |
| Maximum CPU cooler height | 162 mm |
| Maximum graphics card length | 370 mm |
| Number of expansion slots | 7 |
| Maximum PSU length | 296 mm |
| Reset button | Yes |
| On/off button | Yes |
| Tempered glass panel(s) | Yes |

### Power supply

| Feature | Value |
|---|---|
| Power supply included | No |

### Ports & interfaces

| Feature | Value |
|---|---|
| USB 2.0 ports quantity | 2 |
| Audio input | Yes |

### Cooling

| Feature | Value |
|---|---|
| Front fans installed | 3x 120 mm |
| Rear fans installed | 1x 120 mm |
| Rear radiator sizes supported | 120 |
| Front radiator sizes supported | 360, 280, 240, 120 |
| Top radiator sizes supported | 280, 240, 120 |

### Storage

| Feature | Value |
|---|---|
| Supported HDD sizes | 2.5, 3.5 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 442 mm |
| Width | 472 mm |
| Depth | 220 mm |

## FAQ

### How much does the PC case ENDORFY Regnum 400 Air Tower Black cost, and is it available for purchase?

The price is 57.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 54 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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 ENDORFY 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 ENDORFY 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, supported motherboard form factors, 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 ENDORFY Regnum 400 Air Tower Black?

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

https://aio.lv/img/cache/product/5696620/64981977_large.webp