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The Jonsbo U4-Silver/Window Mini Tower is a solid ATX aluminium case. With a steel panel structure and tempered glass side panel, this mid-level case boasts a design that looks and feels high-end .
After many years experience manufacturing PC cases, Jonsbo has a design that is both streamlined and durable. Combining an outer aluminium chassis, steel interior, and innovative structural joining technology, the strong structure and polished aesthetic are perfectly fused for lasting durability.
For the Jonsbo U4 Mini-Tower case’s 5mm tempered glass side panel, CNC machinery has been used to cut the edges accurately for a smooth and sleek finish. As a side panel, tempered glass not only provides a wide-angle display for illuminated hardware, but also offers improved noise isolation along with reduced resonance compared to traditional metal side panelling.
The U4 Mini Tower case has extensive storage options. It’s capable of holding up to three 2.5 SSDs and one 3.5 HDD, so your PC can host even more high-speed gaming storage. Alternatively, the case can be configured to accommodate up to two 2.5 SSDs and two 3.5 HDDs.
The U4 Mini Tower Case also supports 170mm radiators, high-end graphics cards up to 310mm in length and 120/240mm coolers. All in all, this means the Jonsbo U4 can host extensive cooling for all your high-end hardware.
| Model | U4 |
| Colour | White |
| Dimensions | 205mm(W)x340mm(D)x428mm(H) |
| Material | Internal Structure: 1.0mm SGCC Steel Body/Back/Right Side Panel: 2.0+1.5mm Aluminium Left Side Panel: 5.0mm Tempered Glass |
| Motherboard | ITX / M-ATX / ATX (Within 305mm×245mm) |
| Drive Bay | 2.5SSD×3 + 3.5HDD× 1 Or 2.5SSD×2 + 3.5HDD×2 |
| Cooling System | Front: 2x120mm fan (Optional) Back: 1x20mm fan (Optional) |
| Power Supply | Standard ATX PS2(Not longer than 250mm) |
| CPU Cooler | Not higher than 170mm |
| Graphics Card | Not longer than 305mm |
| Front I/O Port | USB 3.0×2 / AUDIO×1/ MIC×1 |
| Expansion Slot | 7 |
| Weight | Net 4.8kg |
| Case Features | |
| I/O position | Side |
| Side panel | closed |
| Drive Bays | |
| 3.5 inch internal drive bay | 4 |
| 2.5 inch internal drive bay | 5 |
| Colour | |
| Primary Colour | White |
| Secondary Colour | Black |
| Fan Main Colour (Frame) | Black |
| Fan Main Colour (Rotor) | White |
| Dimensions | |
| Length / Depth | 340 mm |
| Width | 205 mm |
| Height | 428 mm |
| Weight | 4.8 kg |
| Internal Dimensions | |
| Max. CPU Cooler Height | 170 mm |
| Max. GPU Length | 305 mm |
| Max. PSU Length / Depth | 250 mm |
| Radiator Support | |
| Max. Radiator Compatibility | no |
| Motherboard Support | |
| Compatible Motherboard Formats | ATX, Micro-ATX, ITX |
| Max. Motherboard Format | ATX |
| Materials | |
| Materials | Aluminium, Steel, Tempered Glass |
| Case | |
| Case Type | Mini Case |
| Lighting | |
| Lighting | Yes |
| Expansion Slots | |
| Expansion slots / PCI slots | 7 |
| Power Supply | |
| PSU included | No |
| PSU Format | ATX |
| Power Supply Position | rear bottom |
| External Ports | |
| USB 3.0 (external) Type A | 2 |
| Audio outputs & inputs | 1x output + 1x input (3.5 mm jack, 3-pin, TRS) |
| Fan Support | |
| 120 mm fans | 3 |
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