KXRORS S300 Mini-ITX Gaming PC Case User Manual

1. Product Overview

The KXRORS S300 is a compact and portable Mini-ITX gaming PC case, designed for enthusiasts seeking a small form factor build without compromising performance. It features a durable aluminum construction, efficient cooling with three-sided mesh panels, and convenient front I/O including USB 3.0 and Type-C ports.

Figure 1: KXRORS S300 Mini-ITX Gaming PC Case (White)

Figure 2: Case Dimensions (12.2 x 5.3 x 7.6 inches, 8.1L volume)

Key Features:

• Compact Design: 8.1L portable handheld Mini-ITX case.
• Enhanced Connectivity: Front I/O with USB 3.0 Type-C Port.
• Optimal Airflow: Three-sided MESH panels for effective hot and cold air exchange.
• SFX Power Supply Support: Compatible with 100-130mm SFX/SFX-L power supplies.
• ITX Motherboard Compatibility: Supports 170x170mm standard ITX motherboards.
• GPU Support: Compatible with graphics cards up to 305mm in length, 55mm height (2.5 slots), and 130mm width. Includes a premium PCIe 3.0 16X Riser Cable.
• CPU Cooler Clearance: Maximum CPU fan height of 60mm.

2. Safety Information

Please read and understand all safety precautions before assembling or operating your PC. Failure to do so may result in personal injury or damage to components.

• Always disconnect the power supply from the wall outlet before installing or removing any components.
• Wear anti-static gloves or use an anti-static wrist strap to prevent electrostatic discharge (ESD) damage to sensitive electronic components.
• Handle components carefully. Avoid touching gold-plated connectors.
• Ensure proper ventilation around the case to prevent overheating.
• Keep small parts and tools away from children.

3. Package Contents

Verify that all items are present and in good condition:

• KXRORS S300 Mini-ITX Gaming PC Case
• PCIe 3.0 16X Riser Cable
• Accessory Kit (screws, cable ties, etc.)
• User Manual (this document)

4. Setup and Assembly Guide

Follow these steps for a successful PC build within the S300 case. It is highly recommended to watch the assembly tutorial video for visual guidance.

4.1 Motherboard Preparation

1. Install CPU: Carefully open the CPU socket lever, align the CPU with the triangle marker, and gently place it into the socket. Close the lever to secure the CPU.
2. Install M.2 SSD: Locate the M.2 slot on your motherboard. Insert the M.2 SSD at an angle and secure it with the provided screw or retention clip. If your motherboard has an M.2 heatsink, install it over the SSD.
3. Install RAM: Open the retention clips on the RAM slots. Align the RAM module with the notch in the slot and press firmly on both ends until the clips snap into place.
4. Install CPU Cooler: Apply thermal paste to the CPU if not pre-applied on your cooler. Mount your low-profile CPU cooler (max 60mm height) according to its instructions, ensuring it is securely fastened.

Figure 3: Installation of CPU, M.2 SSD, and RAM on the Mini-ITX Motherboard.

4.2 Case Preparation

1. Remove Side Panels: Unscrew the thumbscrews on the rear of the case and slide off the mesh side panels.
2. Install PCIe Riser Cable: Secure the included PCIe 3.0 16X Riser Cable to the motherboard's PCIe slot. Ensure it is firmly seated. Important Note: Please set the PCIE speed of the motherboard BIOS to GEN3 for using with 3.0 graphics card extension line, or the computer will not work.

Figure 4: PCIe 3.0 16X Riser Cable for GPU installation.

4.3 Component Installation

1. Install Motherboard: Carefully slide the prepared motherboard assembly into the case, aligning the rear I/O with the cutout. Secure it with screws.
2. Install SFX Power Supply: Mount the SFX power supply (100-130mm length) into its designated bracket and secure it with screws. Connect the necessary power cables to the motherboard and other components.
3. Install Graphics Card: Connect the graphics card to the PCIe riser cable. Carefully slide the GPU into position within the case, ensuring it fits within the dimensions (max 305mm length, 55mm height, 130mm width). Secure the GPU to the case with screws.
4. Cable Management: Route all cables neatly to ensure proper airflow and a clean build.

Figure 5: Internal layout showing SFX Power Supply and ITX Motherboard placement.

Figure 6: Internal layout showing Graphics Card and HDD placement.

4.4 Final Steps

1. Reattach Panels: Slide the mesh side panels back into place and secure them with the thumbscrews.
2. Connect Peripherals: Connect your monitor, keyboard, mouse, and other peripherals to the appropriate ports on the rear I/O and front I/O.

Figure 7: Close-up of the Front I/O with Type-C, USB 3.0, and Power Button.

5. Operating Instructions

Once assembled, connect the power cable to the power supply and a wall outlet. Press the power button on the front I/O panel to turn on your system. The LED on the power button will illuminate.

For optimal performance, ensure all drivers for your components (motherboard, GPU, etc.) are installed and up to date.

6. Maintenance

Regular maintenance helps prolong the life of your PC components and ensures optimal performance.

• Dust Cleaning: Periodically clean the mesh panels and internal components using compressed air to remove dust buildup. Dust can impede airflow and cause overheating.
• Dust Filters: The case includes dust filters. Clean these regularly by removing them and gently brushing off accumulated dust.
• Cable Management: Ensure cables remain neatly organized to maintain good airflow.

Figure 8: High-density mesh panels for improved air exchange.

7. Troubleshooting

7.1 PC Not Booting / Display Issues

• PCIe Speed Setting: If using a PCIe 3.0 graphics card extension line, ensure the PCIE speed of your motherboard BIOS is set to GEN3. Incorrect settings will prevent the computer from working. Refer to your motherboard manual for BIOS settings.
• Component Seating: Verify that all components (CPU, RAM, GPU, SSD) are correctly and firmly seated in their respective slots.
• Power Connections: Double-check all power cables (24-pin ATX, CPU 8-pin, GPU PCIe power) are securely connected.

7.2 Overheating Issues

• Airflow Obstruction: Ensure no cables or components are blocking the mesh panels or internal fan positions.
• CPU Cooler Installation: Verify the CPU cooler is properly installed and making good contact with the CPU, with adequate thermal paste.
• Fan Orientation: Check that any installed case fans are oriented correctly for optimal airflow (intake/exhaust).

8. Specifications

Figure 9: Detailed Product Parameters.

9. Warranty and Support

KXRORS products come with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please visit the official KXRORS website or contact their customer service directly.

KXRORS Store: Visit KXRORS Store on Amazon