{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

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
52.49 €

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
ENDORFY Signum 300 Air — PC case ATX Tower Photo 2
ENDORFY Signum 300 Air — PC case ATX Tower Photo 3
ENDORFY Signum 300 Air — PC case ATX Tower Photo 4
ENDORFY Signum 300 Air — PC case ATX Tower Photo 5
ENDORFY Signum 300 Air — PC case ATX Tower Photo 6
ENDORFY Signum 300 Air — PC case ATX Tower Photo 7
ENDORFY Signum 300 Air — PC case ATX Tower Photo 8
ENDORFY Signum 300 Air — PC case ATX Tower Photo 9
ENDORFY Signum 300 Air — PC case ATX Tower Photo 10
ENDORFY Signum 300 Air — PC case ATX Tower Photo 11
ENDORFY Signum 300 Air — PC case ATX Tower Photo 12
ENDORFY Signum 300 Air — PC case ATX Tower Photo 13
ENDORFY Signum 300 Air — PC case ATX Tower Photo 14
ENDORFY Signum 300 Air — PC case ATX Tower Photo 15
ENDORFY Signum 300 Air — PC case ATX Tower Photo 16
ENDORFY Signum 300 Air — PC case ATX Tower Photo 17
ENDORFY Signum 300 Air — PC case ATX Tower Photo 18
ENDORFY Signum 300 Air — PC case ATX Tower Photo 19
ENDORFY Signum 300 Air — PC case ATX Tower Photo 20
ENDORFY Signum 300 Air — PC case ATX Tower Photo 21
ENDORFY Signum 300 Air — PC case ATX Tower Photo 22
ENDORFY Signum 300 Air — PC case ATX Tower Photo 23
ENDORFY Signum 300 Air — PC case ATX Tower Photo 24
ENDORFY Signum 300 Air — PC case ATX Tower Photo 25
ENDORFY Signum 300 Air — PC case ATX Tower Photo 26
ENDORFY Signum 300 Air — PC case ATX Tower Photo 27
ENDORFY Signum 300 Air — PC case ATX Tower Photo 28
ENDORFY Signum 300 Air — PC case ATX Tower Photo 29
ENDORFY Signum 300 Air — PC case ATX Tower Photo 30
ENDORFY Signum 300 Air — PC case ATX Tower Photo 1
ENDORFY Signum 300 Air — PC case ATX Tower Photo 2
ENDORFY Signum 300 Air — PC case ATX Tower Photo 3
ENDORFY Signum 300 Air — PC case ATX Tower Photo 4
ENDORFY Signum 300 Air — PC case ATX Tower Photo 5
ENDORFY Signum 300 Air — PC case ATX Tower Photo 6
ENDORFY Signum 300 Air — PC case ATX Tower Photo 7
ENDORFY Signum 300 Air — PC case ATX Tower Photo 8
ENDORFY Signum 300 Air — PC case ATX Tower Photo 9
ENDORFY Signum 300 Air — PC case ATX Tower Photo 10
ENDORFY Signum 300 Air — PC case ATX Tower Photo 11
ENDORFY Signum 300 Air — PC case ATX Tower Photo 12
ENDORFY Signum 300 Air — PC case ATX Tower Photo 13
ENDORFY Signum 300 Air — PC case ATX Tower Photo 14
ENDORFY Signum 300 Air — PC case ATX Tower Photo 15
ENDORFY Signum 300 Air — PC case ATX Tower Photo 16
ENDORFY Signum 300 Air — PC case ATX Tower Photo 17
ENDORFY Signum 300 Air — PC case ATX Tower Photo 18
ENDORFY Signum 300 Air — PC case ATX Tower Photo 19
ENDORFY Signum 300 Air — PC case ATX Tower Photo 20
ENDORFY Signum 300 Air — PC case ATX Tower Photo 21
ENDORFY Signum 300 Air — PC case ATX Tower Photo 22
ENDORFY Signum 300 Air — PC case ATX Tower Photo 23
ENDORFY Signum 300 Air — PC case ATX Tower Photo 24
ENDORFY Signum 300 Air — PC case ATX Tower Photo 25
ENDORFY Signum 300 Air — PC case ATX Tower Photo 26
ENDORFY Signum 300 Air — PC case ATX Tower Photo 27
ENDORFY Signum 300 Air — PC case ATX Tower Photo 28
ENDORFY Signum 300 Air — PC case ATX Tower Photo 29
ENDORFY Signum 300 Air — PC case ATX Tower Photo 30

Excellent choice

Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

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

{{email}}
You keep track of price changes

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

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

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 52.49 €: 11 pcs.
Total available for order: 41 pcs.
Warranty: 2 Years
SKU: 5070197
Manufacturer: ENDORFY
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
28.09.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
01.10.2026 {{selectedOffer.courierDeliveryString}}
From 5.69 € (Weight: 6.00 kg)
Parcel couriers
Unisend LV / Latvijas Pasts nodaļa
01.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

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

USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: Number of USB 3.1 (3.1 Gen 2) ports with Type-C connector. USB 3.1 (3.1 Gen 2) is USB interface version which supports transfer rate up to 10 Gbit/s (SuperSpeed+). USB Type-C connector has symmetrical design architecture and compatible with Thunderbolt 3 interface.
0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
0
USB 2.0 ports quantity: Number of USB 2.0 ports (connecting interfaces) in the device. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), USB 2.0 ports are usually black.
2
Power supply included: There is a power supply with this product.
No
Number of 5.25" bays: A drive bay is a standard-area for adding hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed. A 5.25" drive bay, also known as full-height bays, were found in old PCs in the early to mid-1980s. They were 3¼″ high by 5¾″ wide, and up to 8″ deep (83 × 146 × 200 mm), used mainly for hard disks and floppy disk drives.
0
Number of 3.5" bays: A drive bay is a standard-area for adding hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed. A 3.5" drive bay is for floppy disks.
2
Type: Characteristics of the device.
PC
Form factor: The shape or design of the product.
Tower
Supported HDD sizes: The size of the hard disk drives which can be used by the device.
3.5, 2.5
Supported motherboard form factors: Design of the supported motherboards.
Mini-ITX, Micro ATX, ATX
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features

Weight & dimensions

Height: The measurement of the product from head to foot or from base to top.
447 mm
Depth: The distance from the front to the back of something.
216 mm
Width: The measurement or extent of something from side to side.
413 mm

Storage

Supported HDD sizes: The size of the hard disk drives which can be used by the device.
3.5, 2.5

Cooling

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

Ports & interfaces

Audio input: The type of audio input that the device requires, and the connection needed.
Yes
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: Number of USB 3.1 (3.1 Gen 2) ports with Type-C connector. USB 3.1 (3.1 Gen 2) is USB interface version which supports transfer rate up to 10 Gbit/s (SuperSpeed+). USB Type-C connector has symmetrical design architecture and compatible with Thunderbolt 3 interface.
0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
0
USB 2.0 ports quantity: Number of USB 2.0 ports (connecting interfaces) in the device. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), USB 2.0 ports are usually black.
2

Power supply

Power supply included: There is a power supply with this product.
No

Design

Maximum PSU length:
180 mm
Maximum graphics card length:
350 mm
Maximum CPU cooler height:
161 mm
Reset button:
Yes
On/off button:
Yes
Anti-dust filter:
Yes
Tempered glass panel(s):
Yes
Side window: A side window is a transparent side (or part of side) in a housing which enables you to see the internal space of the device.
Yes
Number of expansion slots:
7
Number of 2.5" bays:
2
Number of 5.25" bays: A drive bay is a standard-area for adding hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed. A 5.25" drive bay, also known as full-height bays, were found in old PCs in the early to mid-1980s. They were 3¼″ high by 5¾″ wide, and up to 8″ deep (83 × 146 × 200 mm), used mainly for hard disks and floppy disk drives.
0
Number of 3.5" bays: A drive bay is a standard-area for adding hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed. A 3.5" drive bay is for floppy disks.
2
Supported motherboard form factors: Design of the supported motherboards.
Mini-ITX, Micro ATX, ATX
Product colour: The colour e.g. red, blue, green, black, white.
Black
Type: Characteristics of the device.
PC
Form factor: The shape or design of the product.
Tower

Description

Machine translation. Load original

Similar products

{{product.title}}
Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}

Product comparison

The PC case ENDORFY Signum 300 Air Tower Black is compared against several alternative PC cases within the same category: ENDORFY Signum 300 Core, Signum 300 Solid, Signum 300 ARGB, an alternative version of Signum 300 Air, and the larger Regnum 400 Air. All compared models share fundamental traits such as Mini-ITX, Micro-ATX, and ATX motherboard support, identical storage bay counts, and standard tower structures. The primary differences lie in preinstalled fan configurations, side panel designs, lighting features, maximum graphics card clearance, and liquid cooling radiator support.

⚙️ The table below compares the most relevant specifications and differences of the evaluated models, including side panel material, preinstalled fan count, maximum GPU length, and cooling capacity.

Comparison parameterPC case ENDORFY Signum 300 Air Tower BlackPC Case ENDORFY Signum 300 Core Tower BlackPC case ENDORFY Signum 300 Solid Tower BlackPC case ENDORFY Signum 300 ARGB Tower BlackPC Tower ENDORFY Signum 300 Air Black 3x120mm Fans 360mm RadiatorPC case ENDORFY Regnum 400 Air Tower Black
Form factor & boardsATX Tower, Mini-ITX, Micro ATX, ATXATX, microATX, Mini-ITXATX Tower, Mini-ITX, Micro ATX, ATXATX Tower, Mini-ITX, Micro-ATX, ATXATX Tower, Mini-ITX, Micro ATX, ATXATX/microATX Tower, Mini-ITX, Micro ATX, ATX
Preinstalled fans3x120 mm front, 1x120 mm rearFront and rear 120 mm fans1x120 mm rear3x front, 1x rear 120 mm3x120 mm front, 1x120 mm rear3x120 mm front, 1x120 mm rear
LightingNo ARGB dataNo ARGB dataNo ARGB dataMulti-colour ARGB illuminationNo ARGB dataNo ARGB data
Maximum GPU length35 cm32.5 cm35 cm35 cmNot specified37 cm
Practical conclusionA well-rounded base model offering strong airflow out of the box with three front fans.Features slightly reduced maximum graphics card length clearance compared to standard Signum 300 variants.Equipped with only a single rear fan, requiring additional front fans to be purchased separately for full airflow.Delivers the same core layout as the Air version while adding vibrant ARGB lighting effects.Shares the core Air design while expanding front radiator compatibility up to 360 mm.Provides expanded internal space to accommodate longer high-end graphics cards up to 37 cm.

◎ The table below evaluates which product is most suitable for different user needs and real-world usage scenarios.

Use caseRecommended productWhy
Balanced gaming build with solid airflowPC case ENDORFY Signum 300 Air Tower BlackIncludes three preinstalled front fans for immediate out-of-the-box cooling efficiency.
Visual setup featuring vibrant lightingPC case ENDORFY Signum 300 ARGB Tower BlackEquipped with multi-colour ARGB fans to enhance the aesthetic appeal of a gaming desk.
System utilizing a very long high-end graphics cardPC case ENDORFY Regnum 400 Air Tower BlackOffers extra physical length capacity to comfortably house GPUs up to 37 cm.
Build requiring a large front liquid-cooling radiatorPC Tower ENDORFY Signum 300 Air Black 3x120mm Fans 360mm RadiatorSpecifically tailored to support larger 360 mm front liquid cooling setups.

The PC case ENDORFY Signum 300 Air Tower Black stands out as a balanced, airflow-focused choice equipped with three front fans right out of the box, making it ideal for standard gaming and everyday builds. Opt for the Solid version if you prefer building a custom cooling setup from scratch, the ARGB variant for lighting aesthetics, or the Regnum 400 Air / 360mm-compatible variant if your build requires extra room for massive components.

Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}
Stock data
Warehouse Stock Delivery to the store Store Price
EU16 11 28.09.2026
52.49 €
WH94 11 28.09.2026
52.99 €
BT19 8 Tuesday Best delivery
Fast shipping
71.99 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 11 12.10.2026
63.49 €
52.49 €
Stock: 11
Delivery Date: 28.09.2026
Warehouse: EU16
52.99 €
Stock: 11
Delivery Date: 28.09.2026
Warehouse: WH94
Fast shipping
71.99 €
Stock: 8
Delivery Date: Tuesday Best delivery
Warehouse: BT19
Available only for legal entities
63.49 €
Stock: 11
Delivery Date: 12.10.2026
Warehouse: WH109

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 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 41 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 28.09.2026 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: usb 3.2 gen 2 (3.1 gen 2) type-a ports quantity, usb 3.2 gen 2 (3.1 gen 2) type-c ports quantity, usb 3.2 gen 1 (3.1 gen 1) type-a ports quantity, usb 2.0 ports quantity, power supply included, number of 5.25" bays, number of 3.5" bays, type, form factor, supported hdd sizes, 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.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
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.