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header-product Lian Li B4-mATX Mesh Mini Tower Black PC Case for Micro ATX and Mini-ITX Motherboards
79.49 €

Lian Li B4-mATX Mesh Mini Tower Black PC Case for Micro ATX and Mini-ITX Motherboards

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Lian Li B4-mATX Mesh Mini Tower Black PC Case Photo 9
Lian Li B4-mATX Mesh Mini Tower Black PC Case Photo 1
Lian Li B4-mATX Mesh Mini Tower Black PC Case Photo 2
Lian Li B4-mATX Mesh Mini Tower Black PC Case Photo 3
Lian Li B4-mATX Mesh Mini Tower Black PC Case Photo 4
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Short description

Lian Li B4-mATX Mesh Mini Tower Black PC case designed for Micro ATX and Mini-ITX motherboards. Features a mesh design for optimal airflow, support for SFX and ATX power supplies, and flexible cooling options with support for 120mm and 140mm fans. Includes storage bays for 2.5-inch and 3.5-inch drives and convenient front I/O ports including USB Type-C. Ideal for building compact, high-performance desktop computer systems.
Available for order: 49 pcs.
Warranty: 2 Years
SKU: 12594044
Manufacturer: lian li
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
12.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
17.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
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Product information

Description

The Lian Li B4-mATX Mesh Mini Tower Black PC Case is a compact, high-performance chassis designed to support Micro-ATX and Mini-ITX motherboards. Co-developed with DAN Cases, this mini tower combines a space-saving 21.3-liter volume with exceptional hardware compatibility, allowing builders to assemble powerful desktop systems without compromising on thermal performance. Featuring a sleek black finish and a mesh design optimized for airflow, it balances a minimalist aesthetic with versatile configuration options, including support for both horizontal and vertical layouts.

Advantages

This PC case offers remarkable flexibility through its modular design, supporting large 4-slot graphics cards up to 358mm in length alongside an included anti-sag bracket for enhanced stability. Cooling performance is maximized by extensive fan and liquid cooling support, accommodating up to 360mm radiators and multiple fan placements across the top, side, bottom, rear, and front. Cable management is simplified with dedicated routing points, a removable top fan bracket, and a rotatable AC power connector that adapts seamlessly to different system orientations. Additionally, accessible front I/O connectivity featuring a high-speed USB Type-C port ensures convenient peripheral integration for daily workflows.

Suitable for

  • Building compact gaming desktop systems with high-end graphics cards
  • Assembling micro-ATX and Mini-ITX workstations for content creation
  • Desk setups requiring maximized space efficiency through a vertical layout
  • PC builds focused on optimized airflow and liquid cooling configurations

When it may not be suitable

This mini tower case may not be suitable for users planning to install full-sized ATX motherboards, as it is strictly limited to Micro-ATX and Mini-ITX form factors. Furthermore, builders looking to install extensive multi-drive storage arrays will find limited storage bays, as the chassis accommodates a maximum of one 3.5-inch drive and one 2.5-inch drive.

Key specifications

  • Mini Tower PC case form factor
  • Supports Micro-ATX and Mini-ITX motherboards
  • Compatible with SFX and ATX power supplies
  • Supports up to 358mm 4-slot graphics cards
  • Supports up to 360mm liquid cooling radiators
  • Includes USB Type-C and USB Type-A front ports
  • Drive bays: 1 x 3.5-inch and 1 x 2.5-inch
  • Black steel construction with mesh panel design

How to use

Begin your build by removing the tool-less panels to access the interior chassis. Install your chosen Mini-ITX or Micro-ATX motherboard, securing it alongside your CPU and memory components. Mount your power supply, selecting either an SFX or ATX unit depending on your clearance and cooling layout requirements. Install your graphics card, utilizing the pre-installed anti-sag bracket for structural support, and connect your storage drives to the designated bays. Route your cables using the integrated tie points and removable brackets to maintain clean airflow paths before closing the chassis panels and connecting your peripherals to the front I/O ports.

What to consider before purchase

  • Verify motherboard form factor compatibility with Micro-ATX or Mini-ITX standards
  • Check power supply dimensions, noting that radiator and GPU clearances vary between SFX and ATX PSUs
  • Consider your cooling preferences, as radiator thickness and bottom fan clearance depend on the size of your graphics card
  • Evaluate your storage requirements against the single 3.5-inch and single 2.5-inch drive bay limits
Usage recommendations: Ensure adequate clearance around the mesh panels and maintain clean dust filters periodically to sustain optimal airflow and cooling efficiency for your internal components.

Specifications

USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
0
USB 3.2 Gen 2x2 Type-C 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.
1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
2
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.
0
Power supply included: There is a power supply with this product.
No
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.
1
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
Type: Characteristics of the device.
PC
Form factor: The shape or design of the product.
Mini 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
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features

Other features

Noise level: The amplitude level of the undesired background noise, usually measured in decibels (db).
30.3 dB

Weight & dimensions

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

Certificates

Waste Electrical and Electronic Equipment (WEEE) compliance:
Yes

Technical details

Warranty period:
1 year(s)

Storage

SSD form factor: The size of the solid-state drive, given in inches
2.5"
Supported HDD sizes: The size of the hard disk drives which can be used by the device.
3.5, 2.5

Cooling

Side radiator sizes supported:
240, 280, 360
Liquid cooling capability:
Yes
Liquid cooling installed:
No
Fan speed:
0 - 1800
Maximum airflow:
64.2 cfm
Maximum air pressure:
2.4 mmH2O
Bottom fans diameters supported:
120, 140
Number of bottom fans supported (max):
3
Top fans installed:
2x 120 mm
Rear fans diameters supported:
120
Number of rear fans supported (max):
1
Side fans diameters supported:
140, 120
Number of side fans supported (max):
3
Front fans diameters supported:
120
Number of front fans supported (max):
1

Ports & interfaces

Combo headphone/mic port:
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.
1
USB 3.2 Gen 2x2 Type-C ports quantity:
0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
2
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.
0

Display

Built-in display: A display which is part of the product, so you do not need to attach another display.
No

Power supply

Supported power supply form factors:
SFX, ATX
Power supply included: There is a power supply with this product.
No

Design

Maximum PSU length:
140 mm
Maximum graphics card length:
358 mm
Maximum CPU cooler height:
162 mm
On/off button:
Yes
Cable management: Description of improved cable management
Yes
Built-in speaker(s): The device contains speaker(s) to produce sound.
No
Capacity: Maximum amount that something can contain.
21.3 L
Anti-dust filter:
Yes
Illumination: The device has illumination.
No
Suitable for: Who can use the product, or what the product can be used for.
Gaming
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.
No
Number of 2.5" bays:
1
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.
1
Supported motherboard form factors: Design of the supported motherboards.
Mini-ITX, Micro ATX
Product colour: The colour e.g. red, blue, green, black, white.
Black
Material: The material from which a thing is or can be made e.g. wood, plastic.
Steel
Type: Characteristics of the device.
PC
Form factor: The shape or design of the product.
Mini Tower

Description

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Customer reviews

Customer questions

FAQ

How much does the Lian Li B4-mATX Mesh Mini Tower Black PC Case cost, and is it available for purchase?

The price is 79.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 12.08.2026 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 Lian Li B4-mATX Mesh Mini Tower Black PC Case be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Lian Li B4-mATX Mesh Mini Tower Black PC Case online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 lian li 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 lian li 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 2x2 type-c 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 3.5" bays, number of 5.25" 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.
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