1. Introduction
The Acasis EC-7252 is a high-performance dual-bay enclosure designed for 2.5-inch SATA HDDs and SSDs. It offers versatile data storage solutions with support for four RAID modes (RAID 0, RAID 1, JBOD, and SPAN), ensuring both speed and data security. Featuring a robust aluminum alloy casing for efficient heat dissipation and a USB 3.0 Type-C interface for fast 5Gbps data transmission, this enclosure is ideal for personal and company data centers.

2. Safety Information
- Ensure the enclosure is placed on a stable, flat surface.
- Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
- Do not open the casing or attempt to repair the device yourself. Refer to qualified service personnel.
- Use only the provided or recommended power adapter to prevent damage.
- Keep out of reach of children.
3. Package Contents
Please check the package for the following items:
- Acasis EC-7252 Dual-Bay 2.5 Inch HDD/SSD Enclosure
- USB Type-C to Type-C Cable (with Type-A adapter)
- DC 5V Power Adapter
- User Manual (this document)
4. Product Overview
The Acasis EC-7252 enclosure is designed for efficient and secure data management. Key features include:
- Dual-Bay Design: Supports two 2.5-inch SATA HDDs or SSDs (7-9.5mm thickness).
- High Capacity: Supports up to 12TB total storage (6TB per disk).
- Fast Transmission: USB 3.0 Type-C interface with up to 5Gbps transfer speed.
- Multiple RAID Modes: Hardware RAID support for RAID 0, RAID 1, JBOD, and SPAN.
- Efficient Cooling: Aluminum alloy casing for superior heat dissipation.
- Automatic Hibernation: Enters hibernation after 10 minutes of inactivity to prolong disk lifespan and save power.
- Wide Compatibility: Plug and play with Windows, Mac, and Linux operating systems.


5. Setup Instructions
5.1. Installing Hard Drives/SSDs
- Gently slide open the enclosure cover to reveal the drive bays.
- Insert your 2.5-inch SATA HDD(s) or SSD(s) into the available bays. Ensure they are securely seated in the SATA connectors. The enclosure supports drives with a thickness of 7-9.5mm.
- Slide the enclosure cover back until it clicks into place.

5.2. Connecting to Your Computer
- Connect one end of the provided USB Type-C cable to the USB-C port on the enclosure.
- Connect the other end of the cable to an available USB Type-C or Type-A port on your computer. Use the included adapter if necessary.

5.3. Power Supply
- Connect the DC 5V power adapter to the DC 5V port on the enclosure.
- Plug the power adapter into a wall outlet. This auxiliary power supply is crucial for stable operation, especially when using two hard disks.

6. Operating Instructions
6.1. RAID Mode Configuration
The Acasis EC-7252 supports four hardware RAID modes. It is critical to set the desired RAID mode switches BEFORE connecting the enclosure to your computer or applying power. Changing RAID modes will erase all data on the drives. Back up your data before changing modes.

- RAID-0 (FAST model): Data is divided and stored across both hard disks simultaneously. This mode maximizes transfer speed, theoretically doubling the speed of a single disk.
- Switch Settings: Set the RAID-0 switch to ON, and both disk switches (1 and 2) to ON.
- RAID-1 (SAFE model): One hard disk acts as a mirror of the other, providing data redundancy. If one disk fails, data can be restored from the other by replacing the faulty disk.
- Switch Settings: Set the RAID-1 switch to ON, and both disk switches (1 and 2) to ON.
- SPAN (Joint model): Combines the capacity of both hard disks into a single, larger logical volume. The total capacity is the sum of both disks.
- Switch Settings: Set the SPAN switch to ON, and both disk switches (1 and 2) to ON.
- JBOD (Normal mode): Each hard disk operates independently. Their capacities and speeds are not affected by each other. This is the default mode if no RAID is configured.
- Switch Settings: Set the JBOD switch to ON, and both disk switches (1 and 2) to ON.
After setting the switches, connect the power and USB cables. Your operating system should detect the enclosure and the configured storage volume.
6.2. Compatibility and Usage
The Acasis EC-7252 is compatible with Windows, Mac, and Linux operating systems without requiring additional drivers. It supports plug-and-play functionality.

The enclosure can be used with various devices, including PCs, TVs, gaming consoles (PS4/PS5), and routers for expanded storage.

6.3. Automatic Hibernation
To conserve power and extend the lifespan of your hard drives, the enclosure features an automatic hibernation function. If there is no data operation for 10 minutes, the device will automatically enter hibernation mode.

7. Maintenance
- Keep the enclosure clean by wiping it with a soft, dry cloth.
- Ensure proper ventilation around the device to aid in heat dissipation.
- Avoid dropping or subjecting the enclosure to strong impacts.
- Regularly back up important data, especially when using RAID modes that do not offer redundancy (e.g., RAID 0, SPAN).
8. Troubleshooting
- Device not recognized: Ensure all cables (USB and power) are securely connected. Try a different USB port or cable. Verify that the hard drives are properly seated in the enclosure.
- Slow transfer speeds: Confirm you are connected to a USB 3.0 port on your computer. Ensure the power adapter is connected for stable operation, especially with dual drives.
- Data loss after RAID configuration: Remember that changing RAID modes will erase all data. Always back up your data before reconfiguring RAID.
- Enclosure gets hot: The aluminum casing is designed for heat dissipation. If it feels excessively hot, ensure it has adequate ventilation and is not covered.
- Drives not spinning up: Ensure the DC 5V power adapter is connected and providing sufficient power.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | Acasis |
| Model Number | EC-7252 |
| Product Name | Dual-disk hard disk array enclosure |
| Case Material | Aluminum alloy |
| Color | Dark gray |
| Product Size | 129.3 x 85.1 x 28.4 mm |
| Hard Disk Interface | SATA |
| External Interface | USB 3.0 (Type-C) |
| Transmission Speed | 5Gbps |
| Supported Hard Disk | 2.5 inch SATA HDD/SSD (7-9.5mm thickness) |
| Supporting Hard Drive Capacity | Up to 12TB (6TB x 2) |
| Supported Systems | Windows, Mac, Linux |

10. User Tips
- RAID Mode Selection: Carefully consider your needs for speed vs. data redundancy before setting your RAID mode. RAID 0 offers speed but no redundancy, while RAID 1 offers redundancy but no speed gain. JBOD and SPAN offer different ways to utilize disk space.
- Initial Disk Formatting: After installing new drives and configuring the RAID mode, you may need to initialize and format the disk(s) through your operating system's Disk Management utility before they can be used.
- Power Stability: Always use the dedicated 5V power adapter for optimal performance and stability, especially when running two drives or performing intensive data transfers.
11. Warranty and Support
For warranty information and technical support, please refer to the official Acasis website or contact your retailer. Keep your purchase receipt for warranty claims.
12. Environmental Protection
Please dispose of this product responsibly at the end of its life cycle. Do not discard with general household waste. Consult your local authorities for information on electronic waste recycling programs.





