1. Introduction
This manual provides detailed instructions for the assembly, installation, and maintenance of your Zebronics Cube Gaming PC Cabinet, model ZEB-MERCURY 25. Please read this guide thoroughly before beginning installation to ensure proper setup and optimal performance. This cabinet is designed to accommodate mATX and ITX motherboards, offering a compact yet versatile platform for your gaming PC build.
2. Key Features
- Wide Motherboard Support: Compatible with mATX and ITX motherboards for flexible system builds.
- Advanced Cooling Support: Supports up to a 360mm radiator for high-performance liquid cooling.
- Pre-Installed ARGB Fans: Includes three 120mm ARGB fans (one center infinity ARGB, two reverse-blade) for balanced airflow and customizable lighting.
- Premium Glass Design: Features a panoramic 3-piece tempered glass panel to showcase internal components.
- Smart Airflow Control: Equipped with top and bottom magnetic dust filters to maintain clean airflow and reduce dust accumulation.
- Dual Chamber Layout: Separates major components for improved airflow and simplified cable management.
- Front I/O Connectivity: Provides 1 USB 3.0 port, 2 USB ports, and dedicated headphone and microphone jacks for convenient access.
- ARGB Sync Ready: Supports motherboard ARGB synchronization for a unified lighting setup.

Figure 2.1: Overview of the Zebronics Cube Gaming PC Cabinet (Mercury 25) showcasing its panoramic tempered glass and ARGB fans.
3. Initial Setup Guide
Before beginning the installation process, ensure you have a clean, static-free workspace. Gather all necessary tools, including screwdrivers, cable ties, and anti-static wrist strap if available.
3.1. Unpacking the Cabinet
- Carefully remove the PC cabinet from its packaging.
- Inspect the cabinet for any signs of damage during transit. Contact customer support immediately if any damage is found.
- Remove all protective films from the tempered glass panels.
- Locate the accessory box inside the cabinet, which contains screws, cable ties, and other small components.
4. Component Installation
4.1. Motherboard Installation
The ZEB-MERCURY 25 supports mATX and ITX motherboards. Ensure the correct standoffs are installed for your motherboard size.
- Install the I/O shield into the rear opening of the cabinet.
- Align your motherboard with the pre-installed standoffs.
- Secure the motherboard using the provided screws. Do not overtighten.

Figure 4.1: Motherboard mounting area with CPU cooler and VGA size clearances indicated.
4.2. Power Supply Unit (PSU) Installation
This cabinet features a bottom-mount PSU design within a dual chamber layout for improved thermal management and aesthetics.
- Position the PSU in its designated compartment at the bottom rear of the cabinet.
- Secure the PSU using the screws provided with your power supply.
- Route the necessary cables through the cable management cutouts to the main chamber.

Figure 4.2: Dedicated power supply space for a clean interior, part of the dual chamber design.
4.3. Storage Drive Installation
The cabinet supports 1 x 3.5" HDD and 2 x 2.5" SSD drives.
- Locate the drive bays/mounts behind the motherboard tray or in the PSU shroud area.
- Mount your 3.5" HDDs and 2.5" SSDs using the provided screws.
- Connect SATA data and power cables to the installed drives.

Figure 4.3: Locations for 3.5" HDD and 2.5" SSD installations.
4.4. Cooling System Installation (Fans & Radiators)
The ZEB-MERCURY 25 comes with three pre-installed 120mm ARGB fans and supports additional fans and radiators.
- Pre-installed Fans: The cabinet includes 3 x 120mm ARGB fans (1 center infinity ARGB, 2 reverse-blade).
- Additional Fan Support:
- Top: Up to 3 x 120mm or 2 x 140mm fans (optional)
- Rear: 1 x 120mm fan (pre-installed)
- Side: Up to 2 x 120mm or 2 x 140mm fans (optional)
- Bottom: Up to 3 x 120mm or 2 x 140mm fans (optional)
- Radiator Support:
- Top: Up to 360mm AIO cooler.

Figure 4.4: Overview of fan mounting locations and sizes.

Figure 4.5: Top mounting area for a 360mm AIO liquid cooler.
Ensure proper airflow direction for optimal cooling. The pre-installed fans are configured for balanced airflow. Refer to Figure 4.6 for an enhanced airflow diagram.

Figure 4.6: Enhanced airflow design with intake (blue arrows) and exhaust (red arrows) paths.
5. Front I/O Connectivity
The front I/O panel provides convenient access to essential ports and controls.
- 1 x USB 3.0 Port
- 2 x USB 2.0 Ports
- 1 x Headphone Jack
- 1 x Microphone Jack
- Power Button
- Reset Button
- LED Indicator
Connect these cables to the corresponding headers on your motherboard. Refer to your motherboard manual for specific header locations.

Figure 5.1: Detailed view of the front I/O ports and controls.
6. Maintenance
Regular maintenance helps ensure optimal performance and longevity of your PC components.
6.1. Dust Filter Cleaning
The ZEB-MERCURY 25 is equipped with top and bottom magnetic dust filters. These should be cleaned periodically to prevent dust buildup and maintain efficient airflow.
- Gently remove the magnetic dust filters from the top and bottom of the cabinet.
- Clean the filters using compressed air, a soft brush, or by rinsing them with water (ensure they are completely dry before reattaching).
- Reattach the filters to their respective positions.

Figure 6.1: Locations of the top and bottom magnetic dust filters for easy cleaning.
6.2. General Cleaning
- Use a microfiber cloth to wipe down exterior surfaces, especially the tempered glass panels.
- For interior cleaning, use compressed air to remove dust from fans and other components. Ensure the system is powered off and unplugged before cleaning.
7. Troubleshooting
This section addresses common issues that may arise during or after the assembly of your PC within the ZEB-MERCURY 25 cabinet.
| Problem | Possible Cause | Solution |
|---|---|---|
| System does not power on. | Power cables not connected correctly; front panel power switch not connected. | Verify all power connections (PSU to motherboard, components). Ensure front panel power switch cable is correctly connected to motherboard header. |
| Fans are not spinning or ARGB lighting is not working. | Fan power cables or ARGB cables not connected; motherboard ARGB sync not configured. | Check fan power connections. Ensure ARGB cables are connected to the motherboard's ARGB header (5V 3-pin) and configured via motherboard software. |
| Poor airflow or high temperatures. | Dust filters clogged; incorrect fan orientation; insufficient cooling. | Clean dust filters. Verify fan direction (intake/exhaust). Consider adding more fans or upgrading to a liquid cooler if temperatures remain high. |
| Front USB ports not functioning. | Front panel USB cables not connected to motherboard. | Ensure USB 3.0 and USB 2.0 headers from the front panel are securely connected to the corresponding motherboard headers. |
8. Technical Specifications
| Feature | Detail |
|---|---|
| Model Name | ZEB-MERCURY 25 |
| Case Type | Mid Tower |
| Motherboard Compatibility | Micro ATX, Mini ITX |
| Dimensions (D x W x H) | 42D x 28.5W x 36H Centimeters |
| Item Weight | 4680 Grams |
| Enclosure Material | Tempered Glass |
| Power Supply Mounting Type | Bottom Mount |
| Pre-installed Fans | 3 x 120mm ARGB Fans (1 center infinity, 2 reverse-blade) |
| Fan Support (Optional) | Top: 3x120mm / 2x140mm; Side: 2x120mm / 2x140mm; Bottom: 3x120mm / 2x140mm |
| Radiator Support | Top: Up to 360mm AIO Cooler |
| Drive Bays | 1 x 3.5" HDD, 2 x 2.5" SSD |
| Expansion Slots | 5 |
| Front I/O Ports | 1 x USB 3.0, 2 x USB 2.0, Headphone, Microphone |
| Max VGA Card Length | 480mm |
| Max CPU Cooler Height | 170mm |
| Special Features | Panoramic 3-Piece Tempered Glass, Dual Chamber Design, Magnetic Dust Filters, Motherboard ARGB Sync |
9. Warranty and Support
For warranty information and technical support, please refer to the official Zebronics website or contact their customer service department. Keep your proof of purchase for warranty claims.
Manufacturer Contact Information: No.13/7, Smith Road, Royapettah, Chennai - 600 002, Zebronics India Private Limited.
Country of Origin: China





