1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your ICY BOX IB-366StU3+B 3.5-inch HDD Enclosure. Please read this manual carefully before using the product to ensure proper functionality and to prevent damage.
The ICY BOX IB-366StU3+B is an external enclosure designed for a single 3.5-inch SATA hard disk drive (HDD). It features a robust aluminum alloy case, USB 3.0 connectivity with UASP support for high-speed data transfer, and an Easy Swap mechanism for tool-free HDD installation.
2. Package Contents
Please check the package contents upon unboxing. If any items are missing or damaged, contact your retailer.
- ICY BOX IB-366StU3+B 3.5-inch HDD Enclosure
- USB 3.0 Cable (Type-A to Type-B)
- Power Adapter
- Vertical Stand
- User Manual (this document)

Figure 2.1: The ICY BOX IB-366StU3+B enclosure, including the USB 3.0 cable and the detachable vertical stand.
3. Features
- External enclosure for one 3.5-inch SATA HDD.
- Supports SATA I/II/III up to 6 Gbit/s with no capacity limitation.
- USB 3.0 port with transfer rates up to 5 Gbit/s.
- UASP (USB Attached SCSI Protocol) support for enhanced performance.
- Durable aluminum alloy chassis.
- Easy Swap mechanism for tool-free HDD installation and removal.
- Supports both vertical and horizontal placement with the included stand.
4. System Requirements
- Operating System: Windows (compatible with various versions).
- Compatible Devices: Laptop or desktop computer with an available USB 3.0 (or USB 2.0 for backward compatibility) port.
5. Installation Guide
Follow these steps to install a 3.5-inch SATA HDD into the enclosure:
- Open the Enclosure: Locate the release button on the front panel of the enclosure. Press the button to unlock and open the front door. The internal tray will slide out.
- Insert the HDD: Carefully slide your 3.5-inch SATA HDD into the open tray. Ensure the SATA connectors on the HDD align with the connectors inside the enclosure. The HDD should fit snugly.

Figure 5.1: Illustrates the process of inserting a 3.5-inch SATA hard drive into the enclosure's open tray.
- Close the Enclosure: Gently push the front door back into place until it clicks, securing the HDD inside. The Easy Swap mechanism ensures a tool-free and secure fit.

Figure 5.2: The enclosure with a hard drive partially inserted, demonstrating the tool-free Easy Swap design.
6. Connection and Operation
Once the HDD is installed, connect the enclosure to your computer and power source:
- Connect Power: Plug the provided power adapter into the DC-IN port on the rear of the enclosure, then connect it to a power outlet.
- Connect USB: Connect one end of the USB 3.0 cable to the USB 3.0 port on the rear of the enclosure and the other end to an available USB 3.0 port on your computer.

Figure 6.1: The rear panel of the enclosure, highlighting the DC-IN power input and the USB 3.0 data port.
- Power On: Press the power button, usually located on the front or top of the enclosure. The LED indicator will illuminate, signifying that the device is powered on.
- Disk Recognition: Your operating system should automatically detect the new hardware. If it's a new HDD, you may need to initialize and format it through Disk Management (Windows) before it appears as a usable drive.

Figure 6.2: The enclosure in its vertical stand, showing the power indicator light.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the enclosure. Do not use liquid cleaners or solvents.
- Ventilation: Ensure the enclosure's ventilation holes are not obstructed to prevent overheating.
- Handling: Handle the enclosure with care. Avoid dropping it or subjecting it to strong impacts.
- Disconnection: Always safely eject the drive from your operating system before disconnecting the USB cable or power to prevent data corruption.
8. Troubleshooting
- Drive Not Detected:
- Ensure the power adapter is securely connected and the enclosure is powered on.
- Verify the USB cable is properly connected to both the enclosure and the computer.
- Try connecting to a different USB port on your computer.
- Check Disk Management (Windows) to see if the drive is recognized but uninitialized or unformatted.
- Ensure the HDD is correctly seated within the enclosure's SATA connectors.
- Slow Transfer Speeds:
- Ensure you are connected to a USB 3.0 port on your computer. USB 2.0 ports will result in slower speeds.
- Verify that your operating system and drivers support UASP for optimal performance.
- The actual speed may also depend on the performance of the installed HDD.
- Enclosure Overheating:
- Ensure adequate ventilation around the enclosure. Do not place it in an enclosed space.
- Avoid placing the enclosure on soft surfaces that might block airflow.
9. Specifications
| Model Number | IB-366STU3-B |
| Drive Type Supported | 1x 3.5-inch SATA I/II/III HDD/SSD |
| Interface (External) | USB 3.0 (backward compatible with USB 2.0) |
| Interface (Internal) | SATA III (6 Gbit/s) |
| Data Transfer Rate | Up to 5 Gbit/s (USB 3.0), Up to 6 Gbit/s (SATA III) |
| UASP Support | Yes |
| Material | Aluminum Alloy |
| Color | Black |
| Max. Storage Capacity | 4 TB (as per available information, may support higher capacities with newer firmware/OS) |
| Operating System | Windows |
10. Safety Information
- Do not expose the device to moisture, dust, or extreme temperatures.
- Use only the provided power adapter. Using an incorrect adapter may damage the device.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
- Keep the device away from strong magnetic fields.
11. Warranty and Support
This product comes with a manufacturer's warranty. Please refer to the warranty card included in your package or visit the official ICY BOX website for detailed warranty terms and conditions.
For technical support, driver downloads, or further assistance, please visit the ICY BOX support page or contact their customer service directly. Contact information can typically be found on the manufacturer's website.





