Jonsbo unveils D401 Black mid-tower with double tempered glass panels
Jonsbo is expanding its chassis lineup with the release of the D401 Black, a mid-tower case that breaks away from traditional box aesthetics. Featuring an external frame finished in dark metallic grey, the case is designed to offer a balance of structural rigidity and open-air visual appeal for showcase builds.
Jonsbo has equipped the D401 (via Hermitage Akihabara) with large tempered glass panels on both the front and left side, providing a panoramic view of the hardware. While glass-heavy “aquarium” style cases often suffer from airflow restrictions, the D401 attempts to mitigate this with a right-side panel featuring dedicated venting, working in tandem with perforations across the top and bottom panels to create unobstructed channels for intake and exhaust.
Cooling support is substantial for a chassis of this class. The layout supports a variety of configurations, with up to three 120 mm fans on the side panel and either three 120 mm or two 140 mm fans on the top. Unusually for a standard mid-tower, the PSU shroud is also perforated to mount three additional 120 mm fans, feeding fresh air directly into the GPU. Regarding liquid-cooling compatibility, the case supports dual 360mm radiators simultaneously (top and side), making it a viable candidate for custom loops or high-end AIOs.
Internally, the D401 Black supports Mini-ITX to ATX motherboards, with seven rear expansion slots. Graphics card clearance is generous at 439 mm, while air cooler height is capped at 169 mm. The design also supports vertical GPU mounting, though builders will need a separate riser cable. Power supplies up to 200 mm in length can be fitted. Storage options are kept relatively minimal to maintain the clean interior aesthetic, with a convertible drive bay supporting either a 3.5-inch HDD or a 2.5-inch SSD, alongside two dedicated 2.5-inch mounts. The I/O panel, located at the bottom of the left panel, covers the essentials, including USB connectivity (1x Type-C 3.2 and 2x Type-A 3.0) and standard audio jacks.
KitGuru says: The D401 is an aesthetically pleasing case with room for almost anything you want to throw at it. However, looks aren't enough, and the limited storage options, I/O panel location, and interrupted panoramic view might deter some from pursuing this case.
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