COOLER MASTER Case Masterbox Lite 3.1 with Window Side Panel

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Identifiers
Model Cooler Master MCW-L3B3-KANN-01
MPN Cooler Master MCW-L3B3-KANN-01
Dimensions / Weight
Key Features
80plus rated
The efficiency certification level of a power supply unit, indicating the minimum percentage of input power that is converted to usable output at various load levels (e.g., 20%, 50%, 100%). Common ratings include "80 Plus", "80 Plus Bronze", "80 Plus Silver", "80 Plus Gold", "80 Plus Platinum" and "80 Plus Titanium". The value helps consumers compare energy efficiency and potential operating costs of different power supplies.
No
Accessories included
The total count of distinct accessory items that are part of the product’s standard package. Each accessory is a separate component such as a cable, adapter, battery, or manual. The value is expressed as an integer without any unit of measure.
Customizable trim colors
Audio input
Indicates whether the product includes a dedicated audio input port (e.g., 3.5 mm jack, RCA, optical). A value of "Yes" means an audio input is present; "No" means it is absent.
Yes
Audio output
The total count of physical audio connectors available on the product, such as headphone jacks, RCA outputs, or optical ports. The value is an integer indicating how many separate audio input or output points can be used to connect external devices.
Yes
Built-in card reader
Indicates whether the product includes a built‑in reader that can read removable memory cards such as SD, microSD, MMC or similar formats. A value of "Yes" means the device has such a reader; "No" means it does not.
No
Case colour
The colour or combination of colours that a product’s outer shell or enclosure is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the case for consumers.
Black
Case Edition
The edition or variant of a computer case, indicating a specific release such as "Standard", "Limited Edition", "Pro", or a numeric identifier. It distinguishes different versions of the same model and helps users identify the exact product they are viewing.
MasterBox Lite 3.1
Case form factor
The physical configuration or design of a computer case, such as ATX, Micro‑ATX, Mini‑ITX, Mid Tower, Full Tower, Rackmount, or other standardized form factors. It indicates the dimensions, mounting points and expansion options that determine compatibility with motherboards and components.
Mini Tower
Case type
The form or style of a protective enclosure for electronic devices, such as laptops, tablets, phones, or other gadgets. It indicates whether the case is a hard shell, soft sleeve, backpack, messenger bag, folio, flip cover, or any other design that protects and carries the device.
Tower
Chassis Contruction Materials
The set of materials that make up the chassis of a computer or electronic device, such as steel, aluminium, plastic, tempered glass, or composite blends. The value is typically a list of one or more material names separated by slashes.
Steel / Plastic
Colours
A colour is a visual attribute that describes the hue or shade of an object or surface. It can be a single dominant colour, a combination of colours, or a range such as "Black, White". The value may be expressed in common names (e.g., Black, Silver) or descriptive terms (e.g., One Colour, Assorted).
Black with Swappable Red/White/Black Trims
Cooler height
The vertical dimension of a cooling unit measured from its lowest to highest point. The value is expressed in a physical unit such as millimetres, centimetres or inches and applies to any cooler component where height is relevant, including air coolers, liquid radiators and passive heat sinks.
158 mm
Cooling System
The arrangement and number of fans supported by a computer case or cooling component, including the size (e.g., 120 mm, 140 mm) and placement (front, rear, top, side). It indicates how many fans can be installed in each location and whether any slots are pre‑filled with fans. This information helps users plan airflow and choose compatible fan sizes.
Front: Supports 2 x 120mm fansRear: Supports 1 x 120mm fan (included)
Depth
The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
456 mm
Dimensions
The pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates how many pixels are used to render the visual content and is commonly used for monitors, TVs, smartphones, cameras, and digital images.
208 x 381 x 456 (WxHxD mm)
Display model in showroom
The specific model name or number of a display that is presented in the showroom for customers to view and compare. It identifies the exact product variant, allowing shoppers to recognize features such as size, resolution, panel type, and brand.
No
Drive bays
The total number of drive bays available in a computer case or enclosure, expressed as a combination of the quantity of each bay type and its physical size (e.g., "4 x 2.5" Internal 2 x 3.5" Internal"). This attribute helps users understand how many drives can be installed and what sizes are supported.
1 x 2.5" Internal 2 x 3.5" Internal
E-sata
Indicates whether the product includes an E‑SATA interface for external storage devices. A value of "Yes" means the device has a dedicated E‑SATA port, while "No" indicates it does not.
No
Expansion slots
The total count of physical expansion slots available on a device for installing additional modules or peripherals such as PCI‑Express cards, M.2 drives, USB adapters, or other expansion hardware. It indicates how many separate slots can be used simultaneously or swapped between the product and other devices.
4 x Full Height
Fan Bays
The total number and sizes of fan slots available in the product, expressed as a series of "count x size" pairs (e.g., 4 × 120 mm). This attribute indicates how many fans can be installed and what dimensions they must have.
3 x 120mm
Fans Included
The number and size of fans that come with the product. Each entry lists how many fans of a specific diameter are included, such as "2 x 120mm" or "1 x 140mm w/ RGB LEDs". This information helps users understand the cooling capacity and lighting options available out of the box.
1 x 120mm
Firewire
Indicates whether the product has any FireWire (IEEE 1394) ports available for connecting compatible devices.
No
Form factor
Specifies the physical configuration or design of a product, such as ATX, Micro‑ATX, Mini‑ITX, tower, case with cover, etc. It describes how the device is built and what mounting or expansion options it supports.
Mid Tower Chassis
Front Radiator Compatibility
A list of the radiator dimensions that can be mounted on the front panel of a computer case. Each entry specifies how many radiators are supported and the range of fan sizes (in millimetres) that fit, e.g., "1 x 120/140/240 mm". This attribute helps users determine which radiators will fit their case without needing to check individual fan sizes.
1 x 120/240mm
GPU Length
The linear dimension of a graphics card measured in a standard unit such as millimetres, centimetres or inches. It represents the overall length from one edge to the other and is used to determine whether the GPU will fit within a computer case or enclosure.
380 mm
Headphone ports
Represents how many headphone or earphone connectors are physically present on the product. The value is a simple integer indicating the total count of headphone ports, regardless of type (e.g., 3.5 mm jack, USB‑C, Lightning) or whether they support audio output only or also input.
1 x 3.5mm Jack
Height
The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
381 mm
Illumination
Indicates whether a product has illumination or lighting capability. The value is "Yes" if the product includes any form of light source (LED, back‑lit display, built‑in lamp, etc.) and "No" otherwise.
Yes
Illumination colour
The hue or combination of hues emitted by a light source, expressed as common colour names such as "Red", "Green", "Blue" or comma‑separated lists like "Red, Green, Blue". This attribute indicates the perceived colour of the illumination produced by devices such as LEDs, lamps, or other lighting fixtures.
White/Red
Internal 3.5 Bay
The total count of internal bays that accommodate 3.5‑inch storage devices such as hard drives or optical drives. It indicates how many separate 3.5‑inch units can be installed inside the product at once.
2
LED fan
The color of the LED lighting on a product, indicating whether it has no LEDs, solid RGB, ARGB, or a specific single color such as Red, Blue, White, etc.
No LED
LED Lighting
Indicates whether the product incorporates LED lighting. A value of "Yes" means the device has one or more LEDs for illumination, while "No" indicates no LED components are present.
No
Max PSU Length
The maximum linear dimension of a power supply unit (PSU) that can fit within a computer case or enclosure, expressed in a standard length unit such as millimetres, centimetres or inches. It indicates the longest PSU that will physically accommodate the case’s internal space and helps users determine compatibility with their chosen power supply.
160 mm
Maximum graphics card length
The maximum linear dimension of a graphics card that can fit within the product’s enclosure, expressed in a standard length unit such as centimeters or inches. It indicates how large a GPU can be installed without exceeding the case or chassis limits.
38 cm
Motherboard form factor
The physical layout and size classification of a motherboard, such as ATX, Micro‑ATX, Mini‑ITX, or other standardized formats. It indicates the dimensions, mounting points, and expansion capabilities that determine compatibility with computer cases and components.
MicroATX Mini-ITX
Panel I/O
A comma‑separated list of the connector types and their quantities available on the front side of a device, such as USB ports, audio jacks, HDMI or power buttons. Each entry follows the format " x ", e.g., "2 x USB 3.0" or "1 x Headphone Out".
1 x Headphone Out 1 x Mic In 1 x USB 2.0 1 x USB 3.0
Power supply included No
Power supply location
The physical position where the power supply unit is installed or mounted within a device, such as top, bottom, rear, side, front, or built‑in. This attribute helps users understand where to find the power source and plan cable routing or ventilation.
Bottom
PSU Form Factor
The physical form factor of a power supply unit, indicating its size and mounting configuration (e.g., ATX, SFX, TFX). This attribute helps determine compatibility with computer cases and other hardware components.
ATX
PSU Included
Indicates whether a power supply unit (PSU) is supplied with the product as part of its standard package. A value of "Yes" means the PSU is included and ready for use, while a value of "No" means no PSU is provided and must be purchased separately.
No
Side window
Indicates whether the product includes a side panel window that allows visual access or ventilation to internal components.
Yes
Suitable for
Indicates the types of products, users or environments for which the item is intended or compatible. The value can be a single category such as "Gaming" or a specific product type like "Computer case".
Gaming
Supported HDD sizes
A list of the physical dimensions of hard drives that a product can accommodate, expressed in inches or millimeters (e.g., "2.5", "3.5", "M.2"). The values are typically separated by commas and indicate which drive form factors fit within the device’s bays or slots.
3.5"
Type
The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.
PC
USB 2.0 ports quantity
Represents the count of external USB 2.0 (high‑speed) connectors available on a device. The value is an integer indicating how many USB 2.0 ports can be used for data transfer or power delivery from the outside of the product, regardless of internal placement or version.
1
USB 3.0 Support
Indicates whether the product includes a USB 3.0 interface, allowing faster data transfer speeds compared to earlier USB standards.
Yes
Weight
The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.
3.95 kg (Approx)
Width
The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.
208 mm
Windows
Indicates whether the product is compatible with at least one version of Microsoft Windows. A value "Yes" means the device can run or support a Windows operating system, while "No" indicates incompatibility.
Yes
Cooler Master

Cooler Master is a Taiwanese computer hardware company that produces a wide range of products, including cases, power supplies, CPU coolers, and gaming peripherals. The company is well-known for its quality products and for its support of the modding community.