jONSBO U4 Mini Tower Case User Manual
- June 12, 2024
- JONSBO
Table of Contents
jONSBO U4 Mini Tower Case User Manual

Package Content
| Image | Q’ty | Used for |
|---|---|---|
| 17 | Screw – PSU | |
| 17 | Washer | |
| 4 | Screw – SSD | |
| 6 | Screw – HDD | |
| 4 | 2.5″SSD/3.5″HDD Dampener | |
| 5 | Cable tie | |
| 24 | Fan Screw | |
| 1 | PCI Bracket.__, | |
| 1 | Hex Standoff | |
| 1 | HEX wrench socket |
Connectors
| USB 3.0 | Type-C Connection |
|---|
|
HD Audio| F Panel
|
Parts Diagram

Parts
- Top Air Filter
- Right Side Panel
- Main Chassis
- Air Filter
- PSU Bracket
- Glass
- PCI-E Cover
Installation Instruction
-
Disassemble the left/right side panels before installing the hardware

Remove the left/right side panels before installing hardware -
Motherboard Installation

The motherboard is placed in the installation area and secured with screws -
PSU installation

-
Remove the PSUbracket from the case, and install PSU and PSU bracket, secure with screws
-
Insert the PSU assembly back in the case, secure the screws from both side
-
There are three positions for PSU mounting points.
-
Install 240 A10 or dual 120mm fans under the top cover
-
Install triple 120mm fans under the top cover
-
Install 360 A10 under the top cover
-
Motherboard Installation

-
Remove PCI slot cover, and PCI slot brackets
-
Insert the graphics card to MB slot, secure with screw
-
Fan and radiator

TOP: 120mm3 or 140mm2 fans
TOP: 240 or 280 or 360 A10
Base: 120mm3 fans / Base: 240 or 360 A10
Rear: 120mm1 fan -
3.5″ HDD installation

-
Put the hard disk on the corresponding position of the bottom cover
-
Secure the HDD with screws through the bottom cover
-
2.5″ SSD Installation

-
Assemble the SSD with screws and grommets.
-
Put the assembled hard disk into the corresponding slot and push it into slot.
-
Install the Side Panel

Install the Side Panel

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