Great Wall has listed the Neptune H5W on JD.com, offering a low-cost entry into the pillarless 'sea view' PC case market. Buyers looking for a spacious chassis that showcases internal components without paying a premium will find this model relevant. The design removes structural pillars to provide an unobstructed view of the hardware inside.

Pillarless chassis supports 360mm AIOs and ATX motherboards
The chassis measures 426x285x448mm and supports ATX, Micro-ATX, and ITX motherboards. This flexibility allows users to build compact or full-sized systems within the same footprint. The open-frame aesthetic prioritizes visual clarity for enthusiasts who value transparency in their builds.
Specifications
- Dimensions: 426x285x448mm
- Motherboard Compatibility: ATX / Micro-ATX / ITX
- GPU Max Length: 415mm
- CPU Cooler Max Height: 160mm
- Fan Support: Up to 10 fans (Top: 3x 120mm/360mm AIO, Side: 3x 120mm or 2x 140mm/360mm AIO, Rear: 1x 120mm, Bottom: 3x 120mm)
Cooling flexibility is a core feature, with support for up to ten fans across multiple positions. The top and side panels can accommodate 360mm all-in-one liquid coolers or multiple 120mm fans. The rear and bottom sections provide additional airflow options to maintain stable temperatures under load.
Storage options include space for three 2.5-inch drives or a combination of two 2.5-inch and one 3.5-inch drive. Graphics cards up to 415mm in length fit comfortably, while CPU coolers must stay under 160mm in height. The top I/O panel offers two USB-A 3.0 ports, one USB-C 3.2 Gen 2 port, and a 3.5mm audio jack.
The Great Wall Neptune H5W is available in China for 369 CNY (around $54.44). This price point positions the case as an affordable option for budget-conscious builders seeking a modern aesthetic. The listing confirms immediate availability through major Chinese retailers.



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