With the VK4 ARGB and the VK4 Rainbow, Sharkoon is launching two new ATX cases onto the market that not only have a clear visual positioning, but also aim to impress in terms of cooling performance and features. The two models are aimed at users who value good ventilation, a modern RGB look and sufficient space for high-performance components – all at an extremely attractive price.
- VK4 ARGB with four pre-installed ARGB PWM fans and RGB control
- Support for radiators up to 360 mm at the front or 280 mm at the top
- Space for graphics cards up to 35 cm in length and extensive memory options
- VK4 Rainbow with four fans in rainbow light effect as an affordable alternative
Performance-oriented design with sophisticated ventilation
The VK4 ARGB comes with four 120 mm ARGB PWM fans ex works, which can be individually adjusted via integrated RGB and PWM control. This not only ensures attractive lighting, but also powerful and quiet cooling. The perforated front also promotes airflow and gives the case an aggressive look that blends in well with gaming setups.

Those who rely on water cooling will also be well served: radiators with up to 360 mm fit in the front, while models with up to 280 mm can be mounted on the case lid. A total of up to eight fan slots are available, which leaves plenty of room for individual cooling concepts – from air-cooled high-end systems to sophisticated custom loops.
Meanwhile, the VK4 Rainbow is aimed at price-conscious users who do not want to do without an impressive look. Here too, four 120 mm fans are pre-installed – but with a fixed rainbow lighting effect instead of addressable RGB control. In terms of cooling and space, however, it does not differ significantly from the ARGB model.
Spacious interior for modern components
Despite their compact appearance, both VK4 cases offer sufficient space for the latest hardware. Graphics cards can be up to 35 cm long, while the CPU cooler should not exceed a maximum height of 16 cm. Power supply units are well protected in the lower power supply tunnel and can be up to 21 cm long.
Up to two 3.5-inch hard disks and four 2.5-inch SSDs can be accommodated – a configuration that should also be sufficient for larger game libraries or extensive media collections. A well-designed cable management system with generous space behind the mainboard tray keeps everything tidy.

The I/O panel on the top of the case is equipped with two USB 3.0 ports and a combined audio connection (TRRS), so that peripherals can be connected quickly and conveniently. Further connections are possible at the rear, depending on the mainboard used.
Maintenance has also been taken into account: Pre-installed dust filters on all air inlets ensure a clean air supply and make maintenance easier – an often underestimated aspect that has a positive long-term effect on the service life of the components.
Conclusion
With the VK4 ARGB and VK4 Rainbow, Sharkoon is launching two cases on the market that offer a strong combination of cooling performance, RGB optics and a functional interior – and at an extremely attractive price. The VK4 ARGB is now available for 59.90 euros and the VK4 Rainbow for 49.90 euros. Both models therefore offer a successful entry into the world of well-ventilated, stylish gaming PCs – without compromising on functionality and compatibility.