Introduction
Thank you for choosing the Acasis 2.5/3.5 Inch HDD Docking Station. This external hard drive enclosure is designed to provide a convenient and efficient solution for expanding your storage, backing up data, and accessing your 2.5-inch and 3.5-inch SATA HDDs and SSDs. With USB 3.0 connectivity, UASP and TRIM support, and a maximum capacity of 24TB, it offers fast data transfer and reliable performance across various devices.

Image: Acasis 2.5/3.5 Inch SATA HDD Case supporting UASP+TRIM and 24TB.
Safety Information
- Keep the device away from water, fire, and high temperatures.
- Do not attempt to disassemble or modify the device.
- Use only the provided power adapter to prevent damage.
- Avoid dropping or subjecting the device to strong impacts.
- Ensure proper ventilation to prevent overheating.
Package Contents
Please check the package for the following items:
- Acasis 2.5/3.5 Inch HDD Docking Station (EC-5351C)
- USB 3.0 Data Cable
- 12V/2A Power Adapter
- EVA Shock-absorbing Pads
- User Manual
Specifications
| Feature | Description |
|---|---|
| Brand | Acasis |
| Model Number | EC-5351C |
| Product Name | 2.5"/3.5" SATA Hard Drive Enclosure |
| Product External Size | 195mm x 115mm x 35mm (7.67in x 4.52in x 1.37in) |
| Product Internal Size | 152mm x 105mm x 25mm (5.98in x 4.13in x 0.98in) |
| Color | Black |
| Internal Interface | SATA |
| External Interface (Upstream) | USB 3.0 |
| DC Diameter | 2.1mm |
| Applicable Hard Disk | 2.5"/3.5" SATA HDD/SSD |
| Supporting Hard Drive Capacity | Up to 24TB |
| Compatible System | Windows, Mac, Linux |
| Plug Type | EU Plug, US Plug, AU Plug, UK Plug (varies by region) |
| Warranty Time | 1 Year |

Image: Detailed product parameters including dimensions and compatibility.
Setup
Tool-Free Hard Drive Installation
The Acasis HDD Docking Station features a tool-free design for easy installation of your hard drive:
Open the Enclosure: Slide down the back cover of the enclosure to open the hard disk compartment.

Image: Step 1 of hard drive installation, showing the back cover sliding down.
Insert Hard Drive: After opening, gently push your 2.5-inch or 3.5-inch SATA hard disk upwards into the SATA interface connector inside the enclosure. Ensure it is firmly seated.

Image: Step 2 of hard drive installation, showing the hard disk being inserted into the SATA interface.
Apply EVA Cushion (Optional for 2.5" drives): For enhanced protection, especially with 2.5-inch drives that might have more space, paste the two provided EVA shock-absorbing pads onto the hard disk. This helps secure the drive and reduce vibration.

Image: Step 3 of hard drive installation, showing EVA pads being applied to the hard disk.
Close Enclosure: Confirm that the hard drive is correctly installed and secure. Then, push the back cover back into place until it clicks shut.

Image: Step 4 of hard drive installation, showing the back cover being closed.
Power and Data Connection
Connect Power: Plug the 12V/2A power adapter into the DC input port on the docking station, then connect the adapter to a power outlet.

Image: The HDD enclosure connected to a laptop and powered by a 12V/2A adapter.
Connect to Computer: Use the provided USB 3.0 data cable to connect the docking station to an available USB port on your computer or other compatible device.

Image: The HDD enclosure connected to a laptop via USB 3.0, highlighting fast data transfer.
Operating Instructions
Data Transfer and Access
Once connected, your operating system (Windows, Mac, Linux) should automatically detect the hard drive. You can then access, transfer, and manage files as you would with any internal or external drive. The USB 3.0 interface supports speeds up to 5Gbps, allowing for rapid data transfer, such as 1GB of files in seconds. The enclosure also supports UASP (USB Attached SCSI Protocol) and TRIM commands for optimized performance with compatible systems and SSDs.

Image: The HDD enclosure connected to a PC, illustrating its use as extra storage.

Image: The HDD enclosure enhancing application open rates when connected to a computer setup.
Universal Compatibility
This docking station offers broad compatibility with various devices:
- Connect to Computer: Use it to resolve space issues on your PC or Mac and safeguard important data.
- Connect to PS4/PS5/Xbox: Expand your game collection and dive into immersive gameplay by using the enclosure for additional console storage.
- Connect to TV/STB: Indulge in stunning high-definition visuals by connecting your hard drive to a TV or Set-Top Box for media playback.
- Connect to Router: Unlock NAS-like remote access capabilities. For specific operating instructions and compatibility, please consult your router manufacturer's manual.

Image: Universal compatibility diagram for the HDD enclosure with various devices.
Hard Drive Compatibility Note
The Acasis EC-5351C is designed exclusively for SATA interface hard drives. It is not compatible with IDE interface hard drives.

Image: Visual comparison of supported SATA interface and unsupported IDE interface.
Maintenance
Cleaning
To clean the enclosure, gently wipe it with a soft, dry cloth. Do not use liquid cleaners or solvents, as these may damage the finish or internal components.
Storage and Protection
When not in use, store the docking station in a cool, dry place. The enclosure features a comprehensive protection design, including fan-type holes for strong convection to ensure optimal performance and prevent overheating. A built-in EVA cushion provides enhanced protection against shocks and vibrations for your hard drive.

Image: Diagram illustrating the fan-type holes for cooling and the internal EVA cushion for protection.
Troubleshooting
- Device Not Recognized: Ensure the hard drive is correctly seated in the SATA interface and the enclosure is properly connected to both power and your computer via the USB cable. Try a different USB port or cable. For new hard drives, they may need to be initialized and formatted through your operating system's Disk Management (Windows) or Disk Utility (Mac) before they appear.
- Slow Transfer Speeds: Verify that you are connected to a USB 3.0 port on your computer. Older USB 2.0 ports will result in significantly slower speeds. Ensure your operating system and hard drive support UASP for optimal performance.
- Power Issues: Confirm the 12V/2A power adapter is securely connected to both the enclosure and a working power outlet.
- Hard Drive Not Spinning: If the hard drive does not spin up, ensure it is a SATA drive and not an IDE drive. Check the power connection.
User Tips
- Always safely eject the hard drive from your operating system before disconnecting the enclosure to prevent data corruption.
- For optimal performance, especially with larger drives or during extended use, ensure the enclosure is placed in a well-ventilated area.
- If using with a router for NAS-like functionality, ensure your router's firmware is up to date and supports external storage.
- When installing a new hard drive, remember to initialize and format it if it doesn't appear automatically in your file explorer.
Warranty and Support
The Acasis 2.5/3.5 Inch HDD Docking Station (EC-5351C) comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or the Acasis customer service directly. Refer to the product packaging or the official Acasis website for contact details.





