Computer case Chieftec CM-01B-U3-OP

Name: Computer case Chieftec CM-01B-U3-OP Midi CM-01B-U3-OP
Brand: CHIEFTEC
SKU: 297929
Price: 358.49 EUR
Availability: InStock

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Computer case Chieftec CM-01B-U3-OP Midi Tower Black

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Short description

The Chieftec CM-01B-U3-OP is a Midi Tower computer case designed for PC builds. It features a sleek black design, top-mounted power supply, and supports various fan sizes including 120 mm for front and side, and 92 mm for the rear. It accommodates 3.5" HDDs and has dimensions of 190 mm width, 456 mm depth, and 420 mm height, making it a versatile choice for any setup.

Available for order: 2 pcs.

Warranty: 2 Years

SKU: 297929

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Deliver the order:

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2b. Kengaraga str., Riga, Latvia, LV-1063

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From 6.15 € (Weight: 6.66 kg)

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Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa

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36 months installment: from 9.96 euros per month

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Product information

Description

The Chieftec CM-01B-U3-OP is a Midi Tower computer case in black, designed for PC builders who want a practical, space-efficient chassis. It features a top-mounted power supply layout, support for Micro ATX and ATX motherboards, four 3.5" drive bays and three 5.25" bays. The case supports front and side 120 mm fans and a rear 92 mm fan, and includes two USB 3.2 Gen 1 (Type-A) ports on the front panel.

Advantages

The CM-01B-U3-OP offers a balanced combination of functionality and cost-efficiency with a sturdy SECC steel construction and a compact Midi Tower form factor. Multiple front panel options with USB and HD Audio connectors provide flexibility for different setups, while the top-mounted PSU and support for common fan sizes simplify installation and cooling configuration.

Suitable for

Home and office PC builds using Micro ATX or ATX motherboards
Systems requiring multiple 3.5" HDDs (up to 4 bays)
Budget-conscious users seeking a reliable, easy-to-build case

Key specifications

Brand: CHIEFTEC
Model: CM-01B-U3-OP
Form factor: Midi Tower
Material: SECC steel
Supported motherboards: Micro ATX, ATX
3.5" bays: 4
5.25" bays: 3
Front I/O: 2 × USB 3.2 Gen 1 (Type-A), HD Audio (depending on front panel)
Fan support: front/side 120 mm, rear 92 mm
Power supply: top-mounted (not included)
Dimensions (W×D×H): 190 × 456 × 420 mm
Weight: 6.63 kg
Colour: Black

How to use

Install the motherboard (Micro ATX or ATX) onto the standoffs and secure it with screws. Mount the power supply in the top compartment and connect power cables to components. Install 3.5" HDDs in the dedicated bays and secure optical drives or other 5.25" devices in the front bays. Fit fans in supported positions (front/side 120 mm, rear 92 mm) to ensure adequate airflow. Connect front panel USB and HD Audio to the motherboard headers as required.

Usage recommendations

For balanced cooling, install at least one front 120 mm intake fan and a rear 92 mm exhaust fan. Use cable routing behind the motherboard tray where possible to improve airflow and simplify assembly. Verify front panel connector compatibility with your motherboard before installation.

Specifications

Type:: PC
Form factor:: Midi Tower
Number of 3.5" bays:: 4
Number of 5.25" bays:: 3
Side window:: No
Power supply included:: No
USB 2.0 ports quantity:: 0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:: 2
Weight:: 6.63 kg
Supported motherboard form factors:: Micro ATX, ATX
Material:: SECC
Product colour:: Black

All features

Design

Type:: PC
Form factor:: Midi Tower
Supported motherboard form factors:: Micro ATX, ATX
Number of 3.5" bays:: 4
Number of 5.25" bays:: 3
Side window:: No
Material:: SECC
Product colour:: Black
Built-in speaker(s):: No
Suitable for:: Home/Office
Number of internal 3.5" bays:: 3
Maximum CPU cooler height:: 155 mm
Maximum graphics card length:: 280 mm
Number of expansion slots:: 7
LED indicators:: Y

Power supply

Power supply included:: No
Power supply location:: Top

Ports & interfaces

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

Cooling

Number of front fans supported (max):: 1
Front fans diameters supported:: 120
Side fans diameters supported:: 120
Rear fans diameters supported:: 92
Number of side fans supported (max):: 2
Number of rear fans supported (max):: 1

Storage

Supported HDD sizes:: 3.5

Weight & dimensions

Material thickness:: 0.6 mm
Weight:: 6.63 kg
Height:: 420 mm
Width:: 190 mm
Depth:: 456 mm

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Instructions

mmo_18313932_1534776324_075_29770.pdf

Description

Instructions

mmo_18313932_1534776324_075_29770.pdf

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Customer questions

FAQ

How much does the Computer case Chieftec CM-01B-U3-OP cost, and is it available for purchase?

The price is 358.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 02.07.2026 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 Computer case Chieftec CM-01B-U3-OP 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 Computer case Chieftec CM-01B-U3-OP 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 CHIEFTEC 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 CHIEFTEC 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 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, weight, supported motherboard form factors, material, 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 Computer case Chieftec CM-01B-U3-OP?

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.

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