Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Sharkoon VK4 Rainbow ATX PC Case. The VK4 Rainbow is designed with a minimalist exterior featuring a perforated front panel and includes four pre-installed 120mm fans with rainbow effect for optimal airflow. It offers ample space for large hardware components and supports radiators up to 360mm, alongside features for clean cable management.

Figura 1: Angle view of the Sharkoon VK4 Rainbow ATX PC Case, highlighting its perforated front and pre-installed rainbow fans.
Producte acabatview
The Sharkoon VK4 Rainbow ATX PC Case is engineered for efficient cooling and hardware compatibility. Key features include:
- Superior Cooling: Equipped with four pre-installed 120mm rainbow effect fans for excellent airflow. Additional fan mounting options are available.
- Suport de refrigeració d'aigua: The front panel supports radiators up to 360mm, and the top panel accommodates radiators up to 280mm.
- Interior espaiós: Designed to house large components such as graphics cards up to 35cm, CPU coolers up to 16cm, and power supplies up to 21cm.
- AmpEmmagatzematge: Supports up to two 3.5" HDDs or four 2.5" SSDs.
- Connectivitat convenient: Top panel features two USB 3.0 ports and a TRRS port for easy access.
- Interior organitzat: Generous space for cable management and pre-installed dust filters at all air intake points for cleanliness.
Components del cas

Figura 2: Frontal view with perforated panel and three 120mm rainbow fans.

Figura 3: lateral view espectacleasing the tempered glass panel.

Figura 4: posterior view with I/O shield area, expansion slots, and exhaust fan.

Figure 5: Top I/O panel with USB 3.0 ports and TRRS audio jack.
Configuració i instal·lació
Follow these steps to install your PC components into the Sharkoon VK4 Rainbow case.
1. Prepare the Case
- Carefully unpack the case and remove all packaging materials.
- Remove the tempered glass side panel by unscrewing the thumb screws at the rear and gently pulling it open.
- Traieu el panell lateral metàl·lic oposat per accedir a la zona de gestió de cables.

Figure 6: Internal layout of the VK4 Rainbow case, ready for component installation.
2. Instal·lació de la placa base
- The VK4 Rainbow supports Mini-ITX, Micro-ATX, and ATX motherboards.
- Instal·leu la protecció d'E/S al retall de la part posterior de la carcassa.
- Align your motherboard with the pre-installed standoffs and secure it with screws. Ensure all standoffs are used for proper support.
3. Instal·lació de la font d'alimentació (PSU)
- Install the PSU into the dedicated compartment at the bottom rear of the case.
- Fixeu la font d'alimentació amb els cargols de la part posterior de la carcassa.
4. Instal·lació de la unitat d'emmagatzematge
- The case supports up to two 3.5" HDDs or four 2.5" SSDs.
- Mount 3.5" HDDs in the drive cage located under the PSU shroud.
- Mount 2.5" SSDs on the dedicated mounting points behind the motherboard tray or on top of the PSU shroud.
5. Instal·lació de la targeta gràfica i la targeta d'expansió
- Traieu les cobertes de les ranures d'expansió necessàries a la part posterior de la carcassa.
- Insert your graphics card or other expansion cards into the PCIe slots on your motherboard and secure them with screws.
6. Gestió de cables
Aprofita els retalls de cables i els punts d'amarratge que hi ha darrere de la safata de la placa base per organitzar els cables. Això millora la circulació del flux i l'estètica.

Figure 7: Cable management area behind the motherboard tray.
Funcionament
Front Panel Connectivity
The top panel of the VK4 Rainbow case provides convenient access to essential ports:
- 2 ports USB 3.0: Per a la transferència de dades d'alta velocitat amb dispositius compatibles.
- 1x TRRS Port: A combined audio jack for headsets with a single 3.5mm plug (microphone and audio).
- Botó d'encesa: To turn your system on/off.
- Botó de restabliment: Per reiniciar el sistema.
Funcionament del ventilador
The four pre-installed 120mm rainbow effect fans are connected via Molex connectors. Due to this connection type, the fans operate at a constant speed and their speed cannot be adjusted via the motherboard. This ensures consistent airflow but may result in a noticeable fan noise level.
Manteniment
Un manteniment regular ajuda a garantir un rendiment òptim i una llarga vida útil dels components del teu PC.
Neteja del filtre de pols
- The VK4 Rainbow features pre-installed dust filters at all air intake points (front, top, and bottom).
- Periodically remove and clean these filters to prevent dust buildup inside the case, which can impede airflow and component cooling.
- Filters can typically be cleaned with compressed air or by rinsing with water and allowing them to dry completely before reinstallation.
Neteja general
- Use a soft, dry cloth to wipe down the exterior surfaces of the case.
- For the tempered glass panel, use a glass cleaner and a microfiber cloth to avoid streaks.
- Ensure the system is powered off and unplugged before performing any cleaning inside the case.
Resolució de problemes
Aquesta secció tracta problemes comuns que podeu trobar.
- High Fan Noise: The pre-installed fans are connected via Molex and operate at a constant speed. If fan noise is a concern, consider replacing the fans with PWM-controlled alternatives that can be regulated by your motherboard.
- Flux d'aire deficient/sobreescalfament:
- Check if dust filters are clean and not obstructed.
- Ensure all case fans are spinning correctly.
- Verify that cables are neatly managed and not blocking airflow paths.
- Dificultat amb la gestió de cables: While the case offers space, complex builds with many components may require careful planning. Utilize cable ties and routing channels effectively.
- Ports del panell frontal que no funcionen:
- Ensure the front panel connectors (USB 3.0, audio, power, reset) are correctly plugged into the motherboard headers.
- Check your motherboard manual for correct header pinouts.
Especificacions
| Característica | Detall |
|---|---|
| Marca | Sharkoon |
| Nom del model | Arc de Sant Martí VK4 |
| Número de model de l'article | SHA-VK4-RAINBOW BK |
| Tipus de cas | Torre ATX |
| Compatibilitat amb la placa base | Mini-ITX, Micro-ATX, ATX |
| Color | Negre |
| Material | Metall |
| Dimensions del producte (L x A x A) | 40.4 x 20.6 x 48.7 cm |
| Pes de l'article | 7.12 kg |
| Ventiladors preinstal·lats | 4x 120mm Rainbow Effect Fans |
| Màx. Longitud de la targeta gràfica | 35 cm |
| Màx. Alçada del refrigerador de la CPU | 16 cm |
| Màx. Longitud de la PSU | 21 cm |
| Suport del radiador (davanter) | Fins a 360 mm |
| Suport del radiador (superior) | Fins a 280 mm |
| Drive Bays | 2x 3.5" HDD or 4x 2.5" SSD |
| E/S frontal | 2x USB 3.0, 1x TRRS Audio |
Garantia i Suport
For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Sharkoon website. If you require technical assistance or have questions not covered in this manual, please contact Sharkoon customer support through their official channels.
Fabricant: Sharkoon Technologies GmbH
Weblloc: www.sharkoon.com





