I need to know what pc case width is this?

The case dimensions (L x W x H) are: 496 x 217 x 469 mm, you can find the full product specs here: https://m.media-amazon.com/images/I/81Hbqjg6J7S.pdf

Tempered glass or not ??

yes, this is a tempered glass side panel

Are the 3x 120mm fans easily accessible to swap out/upgrade?

Yes very easy, 4 screws and done

Argb or rgb fans included ? And fan controller included ?

There is no ARGB or RGB fan included, you can look at the other options with the product and click on that one to get the ARGB or RGB version. With the ARGB version there is a HUB (not an controller) included which can be connected to a controller or the motherboard.

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Cooler MasterMasterBox MB511 - ATX PC Case with Front Mesh Panel, Racing Intakes, Transparent Side Panel, Flexible Air Flow Configurations - Red Accent

Cooler MasterMasterBox MB511 - ATX PC Case with Front Mesh Panel, Racing Intakes, Transparent Side Panel, Flexible Air Flow Configurations - Red Accent

Product ID: 77269708

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Details

Brand
Cooler Master
Motherboard compatibility
ATX
Case type
Mid Tower
Recommended uses for product
Gaming
Colour
Red
Material
Alloy Steel

🌀Max airflow with fine mesh front & top panels

⚙️Supports up to 410mm GPU & 165mm CPU cooler

🖥️Edge-to-edge transparent acrylic side panel

Description

🔥 Race ahead with airflow and style that commands attention!

SLEEK RED ACCENTS - Modern racing-inspired red highlights add a bold, professional edge to your workspace or gaming setup.
SHOW OFF YOUR BUILD - Edge-to-edge transparent side panel lets your custom rig shine in all its RGB glory.
SPACIOUS COMPATIBILITY - Fits standard ATX motherboards plus Mini-ITX and Micro-ATX, with generous clearance for high-end GPUs and coolers.
BREATHE EASY GAME HARD - Fine mesh panels deliver unmatched airflow while keeping dust at bay for peak performance.
ULTIMATE COOLING FLEXIBILITY - Supports multiple fan and radiator setups including up to 360mm front radiator for liquid cooling pros.

The Cooler Master MasterBox MB511 is a high-performance ATX PC case designed for gamers and professionals seeking superior airflow and customizable cooling. Featuring fine mesh front and top panels, it supports multiple fan and radiator configurations including up to a 360mm radiator. Its edge-to-edge transparent acrylic side panel showcases your build, while spacious interior dimensions accommodate large GPUs up to 410mm and CPU coolers up to 165mm tall. Finished with striking red accents, this case blends functionality with bold aesthetics.

Specifications

Brand	Cooler Master
Product Dimensions	49.6 x 21.7 x 46.8 cm; 6.45 kg
Item model number	MCB-B511D-KANN-S00
Manufacturer	Cooler Master Europe B.V.
Series	MasterBox MB11
Colour	Red
Form Factor	ATX
Wireless Type	802.11a
Number of USB 2.0 Ports	2
Number of USB 3.0 Ports	2
Are Batteries Included	No
Item Weight	6.45 kg
Guaranteed software updates until	unknown

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