PC Components

Jonsbo A4 in test – Elegant ITX case allows deep insights

The name Jonsbo stands for a world-renowned manufacturer of computer components from China. In addition to ATX and ITX cases, the product portfolio now also includes CPU coolers and AiO water cooling systems. Jonsbo focuses on a particularly extravagant design, which at the same time does not forget the purpose of the case. The UMX series is particularly well-known, which could impress with an aluminum outer shell. In the meantime, however, the manufacturer has significantly expanded its portfolio in the ITX segment as well.

About a year ago, Jonsbo introduced a new ITX case called A4. This chassis comes in three color variants (black, gray, silver) and has a volume of only 15 liters. Nevertheless, the buyer hardly has to compromise on hardware compatibility and workmanship and can even install a 240 AiO water cooling or four case fans if required. Regardless of the color, the A4 is priced at 155 Euros (current: € 154.90*). Find out whether the Jonsbo A4 is worth a recommendation in this review.

Technical details

Model: Jonsbo A4
Case Type: ITX
Dimensions: 169 mm (W) x 273 mm (H) x 340 mm (D)
Weight: 5.60 kg
Material: Aluminum, Steel, Tempered Glass
Color: Black
Front connectors 1x USB 3.2 Type-C, 1x USB 3.0 Type-A
Drive bays: 1x 3.5″ (replaces 1x 120 fan)
2x 2.5″ (internal)
Expansion slots: 2x horizontal
Form factors: ITX
Ventilation: Lid: 2x 120 mm
Bottom: 2x 120 mm
Radiators: Lid: 1x 240 mm
Max. CPU cooler height: 71 mm
Max. Graphics card length: 325 mm
Max. Graphics card height: 54 mm
Max. Net part length: SFX/ SFX-L
Price: € 154.90*
Features: Tempered Glass, dust filter, USB Type-C, PCIe 3.0 riser cable

Scope of supply

Jonsbo packages the A4 in a plain brown cardboard box. Printed on it in black lettering are a schematic drawing of the chassis, important features, and general technical specifications. Inside, the A4 is encased in a soft foam and plastic film. One of the foam pieces also contains the case feet, which have to be attached later. The other accessories are directly in the box between the foam pads. There are illustrated installation instructions, a mesh filter with adhesive tape, four cable ties, the PCIe 3.0 riser cable and an extension for the I/O panel cables. Additionally, the scope of delivery includes two pre-installed dust filters in the base. Jonsbo has conveniently attached all the necessary mounting screws inside the case on an acrylic plate.

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Jonsbo A4 (schwarz) price comparison

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Simon Lüthje

I am co-founder of this blog and am very interested in everything that has to do with technology, but I also like to play games. I was born in Hamburg, but now I live in Bad Segeberg.

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Hinter dem Namen Jonsbo verbirgt sich ein weltweit bekannter Hersteller von Computer-Komponenten aus China. Zum Produktportfolio gehören neben ATX- und ITX-Gehäusen mittlerweile auch CPU-Kühler und AiO-Wasserkühlungen. Dabei legt Jonsbo den Fokus vor allem auf ein besonders extravagantes Design, welches aber gleichzeitig nicht den Einsatzzweck des Gehäuses vergisst. Besonders bekannt ist UMX-Serie, die vor allem durch … (Weiterlesen...)

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