1. Introduction
Thank you for choosing the Okinos Aqua 3 Micro ATX PC Case. This manual provides essential information for the proper setup, operation, and maintenance of your new PC case. The Aqua 3 features a panoramic design with tempered glass panels, pre-installed ARGB fans for efficient cooling, and a versatile front I/O panel including a Type-C port. Please read this manual thoroughly before beginning installation to ensure optimal performance and safety.
2. Safety Information
- Always disconnect power from all components before installation or maintenance.
- Handle tempered glass panels with care to prevent breakage. Avoid impacts or dropping.
- Be aware of sharp edges inside the case during installation.
- Wear an anti-static wrist strap or frequently touch a grounded metal object to prevent electrostatic discharge (ESD) when handling internal components.
- Keep the case away from direct sunlight, heat sources, and excessive moisture.
- Ensure proper ventilation around the case to prevent overheating.
3. Package Contents
Verify that all items listed below are included in your package:
- Okinos Aqua 3 Micro ATX PC Case (Black)
- 2 x 120mm 3-Pin ARGB Fans (Pre-installed at top)
- 1 x 120mm 3-Pin ARGB Fan (Pre-installed at rear)
- Accessory Box (Contains various screws, additional standoffs, and 1-to-3 fan splitter cable)
- User Manual (This document)
4. Product Overview
The Okinos Aqua 3 case is designed for optimal performance and aesthetic appeal. Below are key features and components.

Figure 4.1: Front view of the Okinos Aqua 3 PC Case, showcasing its panoramic glass panels and internal components with vibrant ARGB lighting.
4.1 Panoramic Design
The Aqua 3 features a 270° panoramic view with fully glass-covered front and side panels, providing an unobstructed view of your internal hardware. This design enhances the visual appeal of your build.

Figure 4.2: Illustration of the case's panoramic design with full glass coverage on the front and side panels.
4.2 Dimensions and Motherboard Support
The case dimensions are 350mm (Depth) x 210mm (Width) x 392mm (Height). It is compatible with MATX (Micro ATX) and ITX motherboards.

Figure 4.3: Case dimensions and standard fan configuration with two 120mm ARGB fans at the top and one at the rear.

Figure 4.4: Motherboard standoff locations and compatibility for ITX and M-ATX motherboards.
4.3 Front I/O Panel (Multi-Functional Zone)
The front I/O panel provides convenient access to essential ports and controls. It includes a power switch, ARGB fan control buttons, two USB 3.0 ports, audio jacks, and a high-speed Type-C 3.2 Gen 2 (10Gbps) interface for fast data transfer.

Figure 4.5: Detailed view of the front I/O panel, highlighting the Type-C 3.2 Gen 2 port, USB 3.0 ports, audio jacks, LED control, and power button.
4.4 Cooling System and Airflow
The case is equipped with a vertical airflow design, featuring two 120mm ARGB fans at the top and one 120mm ARGB fan at the rear for efficient heat dissipation. The bottom of the case features a 1.2mm fine steel mesh for massive air intake and dust resistance, which is finer than traditional 3.0mm meshes. Magnetic dust filters are located at the top and bottom for easy cleaning and maintenance.

Figure 4.6: Illustration of the vertical airflow channel and massive air intake through the 1.2mm mesh openings at the bottom.

Figure 4.7: Detailed view of the 1.2mm fine steel mesh, designed for optimal airflow and dust prevention.

Figure 4.8: Fan support configuration, allowing up to three 120mm fans for bottom-to-top vertical airflow. Note: Radiators are not supported on the top.
4.5 Component Compatibility
The Aqua 3 case supports graphics cards up to 320mm in length and CPU coolers up to 164mm tall, accommodating high-end components like the RTX 4070 series graphics card.

Figure 4.9: GPU compatibility, showing support for graphics cards up to 320mm in length.

Figure 4.10: CPU cooler compatibility, supporting coolers up to 164mm in height.

Figure 4.11: Comprehensive compatibility overview, including motherboard, GPU, CPU cooler, SSD, and HDD placement.
4.6 Cable Management
The case provides up to 23mm of space behind the motherboard tray for efficient cable management, ensuring a clean and organized build.

Figure 4.12: Cable management space behind the motherboard tray, offering up to 23mm for routing cables.
4.7 Advanced Quick-Release Panels
The front glass panel can be easily removed without the need for screws, facilitating convenient access during assembly and maintenance. It utilizes a secure rivet-mounted mechanism.

Figure 4.13: Quick-release mechanism for the front glass panel, allowing easy removal without tools.
5. Setup and Installation
Follow these steps for installing your PC components into the Okinos Aqua 3 case.
5.1 Preparing the Case
- Place the case on a stable, flat surface.
- Carefully remove the tempered glass side panel and front panel by gently pulling them away from the chassis.
- Unpack the accessory box and identify the necessary screws and standoffs.
5.2 Motherboard Installation
- Ensure the correct standoffs are installed for your MATX or ITX motherboard. Six standoffs are pre-installed, and three additional ones are in the accessory box if needed.
- Align your motherboard with the standoffs and the I/O shield opening at the rear of the case.
- Secure the motherboard with the provided screws.
5.3 Power Supply Unit (PSU) Installation
- Locate the PSU mounting area at the bottom rear of the case.
- If your PSU is longer than 140mm or you require more cable space, you can move the hard drive rack to increase the power supply compartment space (from 48mm to 65mm).
- Slide the PSU into position and secure it with screws from the rear of the case.

Figure 5.1: Power supply unit installation options, illustrating how to adjust the hard drive rack for additional PSU space.
5.4 Graphics Processing Unit (GPU) Installation
- Identify the appropriate PCIe slots on your motherboard.
- The case features advanced quick-release PCIe brackets. Gently loosen the screws on the bracket, insert your GPU into the PCIe slot, and then secure the GPU by tightening the bracket screws. You do not need to fully remove the screws.
- If the GPU bracket becomes loose, refer to the diagram for re-installation onto the chassis.

Figure 5.2: Step-by-step guide for GPU installation, showing how to loosen screws and secure the graphics card.
5.5 Storage Drive Installation (SSD/HDD)
The case provides dedicated mounting points for SSDs and HDDs. Refer to Figure 4.11 for locations.
- Mount your 2.5" SSDs to the designated SSD trays or mounting points.
- Install your 3.5" HDDs into the drive cage located near the PSU compartment.
- Secure all drives with the appropriate screws.
5.6 Fan and Cooling Installation
The case comes with three 120mm ARGB fans pre-installed (two at the top, one at the rear). You can add additional 120mm fans at the bottom if desired.
- Ensure all pre-installed fans are securely mounted.
- If installing additional fans, secure them to the designated mounting points.
- Connect the fan power cables to your motherboard or the included 4-port ARGB fan controller.
5.7 Cable Management and Front Panel Connections
Utilize the 23mm cable management space behind the motherboard tray to route and secure cables for a clean build and improved airflow.
- Connect the front panel I/O cables (USB 3.0, Type-C, Audio, Power Switch, LED/ARGB control) to the corresponding headers on your motherboard.
- The pre-installed ARGB fans are connected to a built-in 4-port ARGB controller. This controller can be synced with your motherboard for dynamic lighting effects. A 1-to-3 fan splitter cable is included for fan connections.

Figure 5.3: ARGB fan installation diagram, illustrating connections to the motherboard, power supply, and the included 1-to-3 fan splitter cable.
5.8 Final Assembly
- Once all components are installed and cables are managed, reattach the tempered glass side panel and front panel.
- Ensure all panels are securely fastened.
6. Operating Instructions
6.1 Powering On/Off
Press the power button on the front I/O panel to turn your system on or off.
6.2 Using Front Panel Ports
- USB 3.0 Ports: Connect USB devices for data transfer.
- Type-C 3.2 Gen 2 Port: Use for high-speed data transfer with compatible Type-C devices.
- Audio Jacks: Connect headphones and microphones.
Note: USB ports are primarily for data transfer and are not recommended for power charging, as most motherboards' USB ports support a maximum voltage of 5V.
6.3 ARGB Fan Control
The case features a dedicated button on the front I/O panel to control the ARGB lighting effects of the pre-installed fans. You can cycle through various lighting modes and colors. For advanced customization and synchronization with other ARGB components, connect the ARGB controller to your motherboard's ARGB header (if available) and use your motherboard's lighting software.
7. Maintenance
Regular maintenance helps ensure optimal performance and longevity of your PC case.
- Dust Filters: The magnetic dust filters on the top and bottom of the case can be easily removed for cleaning. Clean them regularly (e.g., monthly) by rinsing with water or wiping with a damp cloth. Ensure they are completely dry before reattaching.
- Glass Panels: Wipe the tempered glass panels with a soft, lint-free cloth and a non-abrasive glass cleaner. Avoid harsh chemicals that may damage the glass or coatings.
- Interior Cleaning: Periodically use compressed air to blow dust out of the case interior and off components like fans and heatsinks. Ensure the system is powered off and unplugged before cleaning.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fans not spinning or ARGB not lighting up. | Loose power connection, incorrect ARGB header connection, controller issue. | Check all fan power cables and ARGB connections. Ensure the ARGB controller is properly powered and connected to the motherboard or using the case button. |
| Front I/O ports (USB, Type-C, Audio) not working. | Front panel cables not correctly connected to motherboard headers. | Verify that all front panel cables (USB 3.0, Type-C, HD Audio) are securely connected to the correct headers on your motherboard. |
| System overheating / Poor airflow. | Dust buildup on filters/fans, improper fan orientation, obstructed airflow. | Clean dust filters and fans. Ensure fans are oriented correctly for vertical airflow (intake from bottom, exhaust from top/rear). Check for any internal cable obstructions. |
| Power button not responding. | Power switch cable disconnected from motherboard. | Check the power switch cable connection to the motherboard's front panel header. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | Aqua 3 |
| Item Model Number | OKICC-AQUA3-MATXB-H3BA |
| Dimensions (L x W x H) | 350mm x 210mm x 392mm (13.78 x 8.27 x 15.43 inches) |
| Item Weight | 9.17 pounds |
| Motherboard Compatibility | Micro ATX / ITX |
| GPU Max Length | 320mm |
| CPU Cooler Max Height | 164mm |
| Pre-installed Fans | 2 x 120mm 3-Pin ARGB (Top), 1 x 120mm 3-Pin ARGB (Rear) |
| Fan Support | Up to 3 x 120mm fans (Top: 2x120mm/140mm, Rear: 1x120mm, Bottom: 2x120mm slim) |
| Front I/O Ports | 2 x USB 3.0, 1 x Type-C 3.2 Gen 2 (10Gbps), Audio (Headphone/Mic Combo Jack), Power, LED Control |
| Material | Tempered Glass, Steel |
| Power Supply Mounting Type | Bottom Mount |
| Cooling Method | Air |
10. Warranty Information
For detailed warranty information regarding your Okinos Aqua 3 PC Case, please refer to the warranty card included with your product or visit the official Okinos website. Warranty terms and conditions may vary by region.
11. Support
If you encounter any issues or have questions not covered in this manual, please contact Okinos customer support or visit the official Okinos store for further assistance.
Okinos Store: https://www.amazon.com/stores/Okinos/page/819177EE-4994-478E-950A-31D6238B9421


