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header-product Computer case Chieftec CM-01B-U3-OP Midi Tower Black
139.49 €

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

Computer case Chieftec CM-01B-U3-OP Photo 1
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Computer case Chieftec CM-01B-U3-OP Photo 10
Computer case Chieftec CM-01B-U3-OP Photo 11
Computer case Chieftec CM-01B-U3-OP Photo 12
Computer case Chieftec CM-01B-U3-OP Photo 1
Computer case Chieftec CM-01B-U3-OP Photo 2
Computer case Chieftec CM-01B-U3-OP Photo 3
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Computer case Chieftec CM-01B-U3-OP Photo 7
Computer case Chieftec CM-01B-U3-OP Photo 8
Computer case Chieftec CM-01B-U3-OP Photo 9
Computer case Chieftec CM-01B-U3-OP Photo 10
Computer case Chieftec CM-01B-U3-OP Photo 11
Computer case Chieftec CM-01B-U3-OP Photo 12
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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: 1 pcs.
Warranty: 2 Years
SKU: 297929
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
21.09.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
24.09.2026 {{selectedOffer.courierDeliveryString}}
From 6.15 € (Weight: 6.66 kg)
Parcel couriers
Unisend LV / DPD Paku skapis / Latvijas Pasts nodaļa
24.09.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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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

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:
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.
4
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.
3
Type: Characteristics of the device.
PC
Form factor: The shape or design of the product.
Midi Tower
Supported HDD sizes: The size of the hard disk drives which can be used by the device.
3.5
Supported motherboard form factors: Design of the supported motherboards.
Micro ATX, ATX
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features

Weight & dimensions

Material thickness:
0.6 mm
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
6.63 kg
Height: The measurement of the product from head to foot or from base to top.
420 mm
Depth: The distance from the front to the back of something.
456 mm
Width: The measurement or extent of something from side to side.
190 mm

Storage

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

Cooling

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

Ports & interfaces

Audio output: The type of audio output that the device produces, and the connector(s).
Yes
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-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:
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

Power supply location: Where the power supply is positioned.
Top
Power supply included: There is a power supply with this product.
No

Design

Maximum graphics card length:
280 mm
Maximum CPU cooler height:
155 mm
LED indicators:
Y
Built-in speaker(s): The device contains speaker(s) to produce sound.
No
Suitable for: Who can use the product, or what the product can be used for.
Home/Office
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 expansion slots:
7
Number of internal 3.5" bays:
3
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.
3
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.
4
Supported motherboard form factors: Design of the supported motherboards.
Micro ATX, 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.
SECC
Type: Characteristics of the device.
PC
Form factor: The shape or design of the product.
Midi Tower

Description

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Customer reviews

Customer questions

FAQ

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

The price is 139.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 21.09.2026 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, 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: 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.

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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