1. Introduction
Thank you for choosing the Blueendless External HDD/SSD Enclosure (Model: BS-MR35TC3). This device allows you to convert your 2.5-inch or 3.5-inch SATA hard drives or solid-state drives into portable external storage. With its tool-free design, high-speed data transfer, and robust power protection, it provides a convenient and secure solution for expanding your storage capacity and utilizing idle hard drives.

Image: The Blueendless external enclosure designed for 2.5 and 3.5-inch SATA portable storage, enabling the use of idle hard drives.
2. Safety Information
- Do not expose the device to moisture, extreme temperatures, or direct sunlight.
- Avoid dropping or subjecting the device to strong impacts.
- Use only the provided power adapter to prevent damage to the device and connected hard drive.
- Keep out of reach of children.
- Ensure proper ventilation to prevent overheating.
3. Package Contents
Please check the package for the following items:
- Blueendless External HDD/SSD Enclosure (BS-MR35TC3)
- USB Type-C to USB 3.0 Data Cable
- 12V/2A Power Adapter (US or EU plug, depending on region)

Image: The Blueendless HDD enclosure shown with a US plug power adapter.
4. Specifications
| Feature | Detail |
|---|---|
| Model | BS-MR35TC3 |
| Color | Black |
| Disk Compatibility | 2.5-inch / 3.5-inch SATA HDD/SSD |
| Max Capacity | Up to 20TB |
| External Interface | USB Type-C (USB 3.0 standard) |
| Internal Interface | SATA |
| Data Transfer Speed | Up to 5Gbps (USB 3.0) |
| System Compatibility | Mac OS, Windows, Linux, Android |
| Installation | Tool-free / Screwless |
| Power Input | DC 12V/2A |
| Material | ABS Plastic |
| Dimensions (L*W*H) | 194mm * 117mm * 32.7mm |

Image: Detailed product specifications including dimensions and compatibility.

Image: Diagram illustrating compatible 2.5-inch SSD, 2.5-inch HDD, and 3.5-inch HDD, and confirming SATA interface support (LDE not supported).
5. Setup Guide
The Blueendless HDD/SSD Enclosure features a tool-free design for quick and easy installation.
Step 1: Open the Enclosure
Gently press the case and slide it open to reveal the internal bay.

Image: Illustration of pressing and sliding the enclosure open.
Step 2: Insert the Hard Drive
Align your 2.5-inch or 3.5-inch SATA HDD/SSD with the internal interface connectors and slide it firmly into place until it is securely seated.

Image: Illustration of aligning and inserting a hard drive into the enclosure.
Step 3: Close and Connect
Close the enclosure by sliding the cover back until it clicks into place. Then, connect the USB data cable from the enclosure to your computer or other device, and connect the 12V/2A power adapter to the enclosure and a power outlet. Finally, press the power switch to turn on the device.

Image: The enclosure connected to a laptop via USB and powered on, showing the power switch and LED indicators.
6. Operating Instructions
6.1 Power On/Off
The enclosure features a dedicated power switch. Press the switch to power on the device. There is no need to unplug cables to power off; simply press the switch again. An LED indicator will show the operational status.
6.2 Connecting to Devices
The enclosure is compatible with various operating systems (Mac OS, Windows, Linux, Android) and supports driver-free installation. Simply connect the USB Type-C cable to your desired device.
- Computer: Connect to your computer to expand storage or access data.
- TV: Connect to a TV for movie viewing.
- Gaming Console (e.g., PS4): Connect to a gaming console for expanded game storage.
- Router: Connect to a compatible router to expand home network data storage.

Connect to Computer

Connect to TV

Connect to PS4

Connect to Router
6.3 Data Transfer
The enclosure supports SATA 3.0 to USB 3.0 transfer, providing speeds up to 5Gbps for rapid transfer of large files.

Image: Visual representation of 5Gbps data transfer speed, capable of transferring a 1GB file in 3 seconds.
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 multi-row heat vents are not obstructed to maintain efficient heat dissipation and prolong hard drive lifespan.
- Safe Removal: Always safely eject the hard drive from your operating system before disconnecting the enclosure to prevent data corruption.
- Storage: When not in use, store the enclosure in a cool, dry place away from dust and direct sunlight.

Image: Diagram showing the bottom multi-row heat vents for efficient heat dissipation, reduced operating temperature, extended hard drive lifespan, and enhanced transfer stability.
8. Troubleshooting
Device Not Recognized:
Ensure the power adapter is securely connected and the enclosure is powered on. Check that the USB data cable is properly connected to both the enclosure and your device. Try connecting to a different USB port or a different computer to rule out port issues. If it's a new hard drive, it might need to be initialized and formatted in your operating system's Disk Management (Windows) or Disk Utility (Mac OS).
Slow Data Transfer Speed:
Ensure you are using a USB 3.0 compatible port on your computer. Older USB 2.0 ports will limit speeds to 480Mbps. Verify that the hard drive itself is not experiencing performance issues. Large file transfers can sometimes appear slower due to system overhead.
Enclosure Not Powering On:
Confirm the power adapter is plugged into a working wall outlet and securely connected to the enclosure. Ensure the power switch on the enclosure is in the 'On' position. If possible, try a different power outlet.
Hard Drive Not Fitting:
Ensure your hard drive is a 2.5-inch or 3.5-inch SATA HDD/SSD. This enclosure is not compatible with IDE drives or other interface types. Refer to the "SATA Interface Compatibility Diagram" in the Specifications section.
9. User Tips
- This enclosure supports high-capacity hard drives, including those up to 20TB, making it suitable for extensive data storage needs.
- Leverage the tool-free design for quick swapping of hard drives, ideal for data recovery or accessing multiple drives.
- The stable 12V power supply and built-in protection features (overcurrent, overvoltage, leakage, short circuit) enhance the safety and longevity of your hard drives.

Image: The enclosure capable of storing up to 20TB of content with ease, highlighting its large capacity expansion.

Image: The enclosure's stable 12V power supply, featuring overcurrent, overvoltage, leakage, and short circuit protection for hard drive safety.
10. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact Blueendless customer service directly. Keep your purchase receipt as proof of purchase.





