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Jonsbo D300 black

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Jonsbo D300 black
black white
Chassis Form Factor:Mini Tower
Motherboard size:micro-ATX
PSU power:no PSU
Internal bays 3.5":2
Internal bays 2.5":3
Front panel:USB A 2 pcs, USB C 1 pcs
Supports motherboards <a href="/list/187/pr-51726/">with reverse connection</a>
Supports reverse-wired motherboards.

A Mini Tower gaming case built around the “aquarium” concept. The model was launched by Jonsbo in 2024 and, among other things, stands out by supporting motherboards with back-connect layouts (when connectors and cables are placed on the rear side for an ultra-clean look in the main chamber). Front and side glass panels create a display-like effect, showing off components without cable visual noise—especially valuable for systems with custom cooling and RGB lighting.

Despite the compact Mini Tower category with dimensions of 460x236x421 mm, it fits GPUs up to 430 mm and CPU coolers up to 180 mm, surpassing many full-size cases in component clearance. The Jonsbo D300 ships without preinstalled fans, giving users complete freedom to choose a cooling setup for their specific needs. Ten fan mounting points offer exceptional flexibility: three side positions for 120 mm models, up to three on top with 140 mm support, a bottom combination to create positive pressure inside the case, and one rear exhaust position.

Liquid cooling support includes a 360 mm top radiator and 140 mm at the rear, enabling powerful CPU and GPU cooling in a compact form factor. A rigid 8 kg steel build enhances stiffness and reduces vibrations, the bottom-mounted power supply up to 200 mm includes a dust filter, and the hidden cable routing works especially well thanks to the motherboard’s back-connect design.

All specifications
Specifications D300 Black
Colour
Featuresgaming
Form factorMini Tower
Mountvertical
Motherboard supportmicro-ATX
Board placementvertical
Reverse layout motherboard support
PSU form factorATX (regular)
Computer case
Dimensions (HxWxD)460x236x421 mm
PSU max lenght200 mm
Graphics card max lenght430 mm
Fan max height180 mm
Weight8 kg
Materialsteel
Side panelremovable
Storage
PSU
PSU mountbottom
3.5" bays2 / вместо 2,5" /
internal 2.5" compartments3
Expansion slots5
Cooling
Fans (back)1x140mm / 1x120mm /
Fans (side)3x120mm
Fans (top)2x140mm / 3x120mm /
Fans (bottom)1x140mm / 2x120mm + 1x120mm /
Fan mounts total10
Dust filterbottom
Liquid cooling system support
Liquid cooling system
Liquid cooling (rear)140 mm
Liquid cooling (top)360mm
Liquid cooling mounts2
Connectors and functions
Placementon top of the case
USB-A 5Gbps2 pcs
USB-C 10Gbps1 pcs
Audio (microphone/headphones)
More features
Front panelglass
Side panel windowtempered glass
More featureshidden wiring
CPU cooling mount window
Official Websitejonsbo.com
Added to E-CatalogMarch 2024
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Jonsbo D300 blackfrom £42.992 offers
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