Jonsbo has released a white version of its X400 PRO aluminum aquarium PC chassis. The company announced this new color variant on May 18, 2024. The chassis maintains the split-cabin backplane structure and aluminum frame found in previous iterations.
New white variant supports ATX backplane motherboards and features split-cabin design for improved MOS tube cooling.
The X400 PRO supports ATX backplane motherboards. It features a split-cabin design that allows for a patented air duct cover to improve MOS tube cooling. The case provides 13 fan mounts and supports 360mm radiators on three sides. Users can install two 3.5-inch HDDs and two 2.5-inch SSDs. When using an ATX backplane motherboard, the drive bay supports only one 3.5-inch HDD. The chassis accommodates power supplies up to 180mm in length. It also supports graphics cards up to 427mm long.

Jonsbo priced the white X400 PRO at 999 CNY (about $146). The chassis is available for purchase in China.
The X400 PRO targets builders who prefer the aquarium aesthetic with specific cooling requirements. The support for 360mm radiators on three sides offers significant cooling flexibility for high-performance builds. The split-cabin design aims to manage heat around critical motherboard components more effectively than traditional layouts.




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