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header-product PC case ENDORFY Signum 300 Air Tower Black — ATX tower, tempered side window, 3x120mm front fans, supports GPU 35 cm, PSU 18 cm
45.99 €

PC case ENDORFY Signum 300 Air Tower Black — ATX tower, tempered side window, 3x120mm front fans, supports GPU 35 cm, PSU 18 cm

Fast delivery available
ENDORFY Signum 300 Air — PC case ATX Tower Photo 1
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PC case ENDORFY Signum 300 Air Tower Black — ATX tower, tempered side window, 3x120mm front fans, supports GPU 35 cm, PSU 18 cm

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PC case ENDORFY Signum 300 Air Tower Black — ATX tower, tempered side window, 3x120mm front fans, supports GPU 35 cm, PSU 18 cm

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Usual Price: 63.99 €
Your Price:
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The discount is valid from 08.06.2026 to 08.07.2026

Short description

ENDORFY Signum 300 Air is a black ATX tower PC case with a tempered side window, reset and power buttons, and anti-dust filters. It includes 3x120 mm front and 1x120 mm rear fans, supports up to 8 fans and liquid cooling, fits ATX/Micro-ATX/Mini-ITX motherboards, up to 35 cm GPU, 16.1 cm CPU cooler and 18 cm PSU. Two 2.5"/3.5" drive bays and two USB Type-A ports provide basic connectivity for gaming and home builds.
Available at price 45.99 €: 30 pcs.
Total available for order: 40 pcs.
Warranty: 3 Years
SKU: 5070197
Manufacturer: ENDORFY
delivery
to the Customer Service Center at Kengaraga 2b, Riga
25.06.2026 {{selectedOffer.officeDeliveryString}}
free
Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
25.06.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
30.06.2026 {{selectedOffer.courierDeliveryString}}
From 5.69 € (Weight: 6.00 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend / DPD Paku skapis / Omniva / Venipak Pickup / Venipak Locker / Latvijas Pasts nodaļa
30.06.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The ENDORFY Signum 300 Air Tower Black is a mid-tower PC case designed for efficient airflow and flexible component layout. The case features a tempered glass side panel, support for multiple drive configurations, and room for long graphics cards and tall CPU coolers. With space for up to eight fans and included Stratus 120 PWM ARGB fans, the Signum 300 Air targets users who need strong cooling potential in a black tower chassis.

Advantages

The case offers a spacious interior that accommodates two 3.5-inch and two 2.5-inch drives (or four 2.5-inch drives), a 350 mm long graphics card, and a tall CPU cooler. A tempered glass side panel provides a clear view of internal components. Signum 300 Air includes four Stratus 120 PWM ARGB fans that support PWM control and fluid dynamic bearings for quiet, efficient operation. Multiple fan mounts and support for 120/240/360 mm radiators enable versatile air or liquid cooling setups.

Suitable for

  • Building a gaming PC with high-performance GPU and robust cooling
  • Home and office workstations that require quiet airflow and component visibility
  • Compact ATX or Micro-ATX builds with multiple storage drives

Key specifications

  • Form factor: Tower (supports ATX, Micro ATX, Mini-ITX)
  • Drive bays: 2 × 3.5" and 2 × 2.5" (or up to 4 × 2.5")
  • Maximum GPU length: 350 mm
  • Fan support: up to 8 fans; includes 4 × Stratus 120 PWM ARGB fans
  • Radiator support: 120 / 240 / 360 mm
  • Side panel: Tempered glass
  • Front I/O: 2 × USB 2.0
  • Dimensions (approx.): 413 × 216 × 447 mm
  • Colour: Black

How to use

Install the motherboard (ATX, Micro-ATX or Mini-ITX) onto the standoffs, then mount the PSU in the designated bay. Fit storage drives into the 3.5" or 2.5" brackets depending on your configuration. Install the CPU cooler and graphics card (up to 350 mm) ensuring clearance for cables and airflow. Connect the included Stratus 120 PWM ARGB fans to the motherboard or a controller for PWM speed control and ARGB lighting management. Route cables behind the motherboard tray to keep airflow unobstructed.

Usage recommendations

For best cooling performance, combine front intake fans with top or rear exhaust fans, keep cable routing tidy to avoid blocking airflow, and use PWM fan headers to balance noise and cooling. If using liquid cooling, verify radiator placement and clearance before assembly.

Specifications

Type:
PC
Form factor:
Tower
Number of 3.5" bays:
2
Number of 2.5" bays:
2
Number of 5.25" bays:
0
Side window:
Yes
Power supply included:
No
USB 2.0 ports quantity:
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
0
Supported motherboard form factors:
ATX, Micro ATX, Mini-ITX
Product colour:
Black
All features

Design

Type:
PC
Form factor:
Tower
Supported motherboard form factors:
ATX, Micro ATX, Mini-ITX
Number of 3.5" bays:
2
Number of 2.5" bays:
2
Number of 5.25" bays:
0
Side window:
Yes
Product colour:
Black
Anti-dust filter:
Yes
Maximum CPU cooler height:
161 mm
Maximum graphics card length:
350 mm
Number of expansion slots:
7
Maximum PSU length:
180 mm
Reset button:
Yes
On/off button:
Yes
Tempered glass panel(s):
Yes

Power supply

Power supply included:
No

Ports & interfaces

USB 2.0 ports quantity:
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity:
0
Audio input:
Yes
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
0

Cooling

Front fans installed:
3x 120 mm
Rear fans installed:
1x 120 mm
Rear radiator sizes supported:
120
Front radiator sizes supported:
360, 240, 120
Top radiator sizes supported:
240, 120

Storage

Supported HDD sizes:
2.5, 3.5

Weight & dimensions

Height:
447 mm
Width:
413 mm
Depth:
216 mm

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
EU1 30 25.06.2026
Discount 28%
45.99 € Best price
BT19 9 Monday Best delivery 75.99 €
EU85 1 30.06.2026 81.49 €
Discount 28%
45.99 €
Stock: 30
Delivery Date: 25.06.2026
Warehouse: EU1
75.99 €
Stock: 9
Delivery Date: Monday Best delivery
Warehouse: BT19
81.49 €
Stock: 1
Delivery Date: 30.06.2026
Warehouse: EU85

Customer reviews

Customer questions

FAQ

How much does the ENDORFY Signum 300 Air — PC case ATX Tower cost, and is it available for purchase?

The price is 45.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 40 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 25.06.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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 ENDORFY Signum 300 Air — PC case ATX Tower?

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.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.