1. Product Overview
The Aigo Apollo A275 is a compact mini-tower PC case designed for efficient component housing and optimized airflow. It features a tempered glass side panel and a meticulously planned interior to accommodate high-performance hardware in a reduced footprint, ensuring ease of installation and effective cooling.
Key Features:
- Compact Mini-Tower design.
- Tempered glass side panel for component visibility.
- Support for M-ATX and ITX motherboards.
- Optimized ventilation with multiple fan mounting options.
- Support for water cooling radiators up to 240mm.
- Front panel connectivity including USB 3.0 and USB 2.0 ports.

Figure 1.1: Front-side view of the Aigo Apollo A275 PC Case, showcasing its tempered glass panels and compact design.

Figure 1.2: Top-front view of the Aigo Apollo A275, highlighting the perforated top panel for ventilation and the accessible front I/O ports.
2. Setup and Component Installation
This section guides you through the process of installing your computer components into the Aigo Apollo A275 PC case. Ensure all power is disconnected before beginning installation.
2.1 Preparing the Case
- Unpack the Case: Carefully remove the case from its packaging.
- Remove Side Panels: Locate and unscrew the thumbscrews on the rear of the case to remove the tempered glass side panel and the solid steel side panel. Set them aside safely.

Figure 2.1: Interior view of the Aigo Apollo A275, showing the motherboard mounting area and internal structure.
2.2 Motherboard Installation
- Install Standoffs: Ensure the correct standoffs are installed on the motherboard tray for your M-ATX or ITX motherboard.
- Place Motherboard: Carefully align your motherboard with the standoffs and the rear I/O shield opening.
- Secure Motherboard: Use the provided screws to secure the motherboard to the standoffs. Do not overtighten.
2.3 Storage Drive Installation
The case supports 1x 3.5" HDD and 2x 2.5" SSDs.
- 3.5" HDD: Locate the 3.5" drive bay. Slide the HDD into the bay and secure it with screws.
- 2.5" SSDs: Mount the 2.5" SSDs to the designated mounting points, typically on the back of the motherboard tray or specific brackets. Secure with screws.

Figure 2.2: Internal view highlighting fan mounting locations and storage drive bays.
2.4 Power Supply Unit (PSU) Installation
- Position PSU: Slide the PSU into its designated compartment, typically at the rear or bottom of the case.
- Secure PSU: Align the PSU with the screw holes at the rear of the case and secure it with screws.

Figure 2.3: Rear-bottom perspective of the case, illustrating the power supply unit mounting area and expansion slots.
2.5 Graphics Card (GPU) and Expansion Card Installation
- Remove Slot Covers: Remove the necessary expansion slot covers from the rear of the case.
- Insert Card: Carefully insert your GPU or other expansion card into the appropriate PCIe slot on the motherboard.
- Secure Card: Secure the card to the case with screws.
2.6 Fan and Water Cooler Installation
The case supports various fan configurations and a 240mm water cooler at the top.
- Fan Support: Top 2x120mm | Side 2x120mm | Bottom 2x120mm | Rear 1x120mm.
- Water Cooler: Install a 240mm radiator and fans to the top mounting points.
2.7 Cable Management
Utilize the cable routing cutouts and tie-down points behind the motherboard tray to manage cables for improved airflow and aesthetics.

Figure 2.4: Rear interior view, illustrating the space available for cable management behind the motherboard tray.
3. Operating Instructions
Once all components are installed and cables are connected, you can begin operating your computer system.
3.1 Front Panel Connectivity
- Power Button: Press to turn the computer on or off.
- Reset Button: Press to restart the computer.
- USB 3.0 Ports (1x): For high-speed data transfer with compatible devices.
- USB 2.0 Ports (2x): For connecting various USB devices.
- HD Audio Jacks: For connecting headphones and microphones.
4. Maintenance and Care
Regular maintenance helps ensure optimal performance and longevity of your PC case and components.
4.1 Cleaning
- Exterior: Use a soft, damp cloth to wipe down the exterior surfaces. Avoid abrasive cleaners.
- Tempered Glass: Clean with a glass cleaner and a microfiber cloth.
- Dust Filters: Periodically remove and clean any dust filters to maintain optimal airflow.
- Interior: Use compressed air to remove dust from inside the case and components. Ensure the system is powered off and unplugged before cleaning the interior.
4.2 General Care
- Avoid placing the case in direct sunlight or near heat sources.
- Ensure adequate space around the case for proper ventilation.
- Do not place heavy objects on top of the case.
5. Troubleshooting
This section addresses common issues you might encounter.
5.1 System Not Powering On
- Check Power Connections: Ensure the PSU is properly connected to the wall outlet and the motherboard.
- Front Panel Connectors: Verify that the power button cable from the front panel is correctly connected to the motherboard's front panel header.
- PSU Switch: Confirm the power switch on the PSU is in the 'ON' position.
5.2 USB Ports Not Functioning
- Internal Connections: Check that the USB 3.0 and USB 2.0 cables from the front panel are securely connected to the corresponding headers on the motherboard.
- Driver Issues: Ensure your operating system has the correct USB drivers installed.
5.3 Poor Airflow or Overheating
- Fan Orientation: Verify that all installed fans are oriented correctly for optimal intake and exhaust.
- Dust Buildup: Clean dust filters and internal components as described in the Maintenance section.
- Cable Management: Improve cable routing to reduce obstructions to airflow.
6. Specifications
| Feature | Detail |
|---|---|
| Model | Aigo Apollo A275 (AC-A275-B-HQ1) |
| Case Type | Mini-Tower |
| Material | 0.45mm SPCC Steel, Tempered Glass |
| Motherboard Compatibility | M-ATX, ITX |
| Dimensions (L x W x H) | 300 x 275 x 298 mm |
| Max GPU Length | 290 mm |
| Max CPU Cooler Height | 155 mm |
| Max PSU Length | 140 mm |
| Drive Bays | 1x 3.5" HDD, 2x 2.5" SSD |
| Fan Support | Top: 2x120mm, Side: 2x120mm, Bottom: 2x120mm, Rear: 1x120mm |
| Radiator Support | Top: Up to 240mm |
| Front I/O | 2x USB 2.0, 1x USB 3.0, HD Audio, Power, Reset |
| Product Weight | 3.64 kg |
7. Warranty and Support
7.1 Manufacturer's Warranty
The Aigo Apollo A275 PC Case comes with a 12-month manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, modification, or unauthorized repair.
7.2 Technical Support
For technical assistance, troubleshooting, or warranty claims, please contact your retailer or the official Aigo support channels. Refer to the Aigo official website for the most up-to-date contact information and support resources.





