ORICO 9728C3
ORICO 2 Bay Hard Drive Enclosure User Manual
Model: 9728C3 | Brand: ORICO
Product Overview
The ORICO 2 Bay Hard Drive Enclosure (Model 9728C3) is a versatile direct-attached storage (DAS) solution designed for personal local database creation and backup. It supports both 2.5-inch and 3.5-inch SATA I/II/III hard drives, offering a massive expansion capacity of up to 22TB per disk, for a total of 44TB. Featuring a sleek, compact design with a press-to-open mechanism, it ensures ease of use and a modern aesthetic. The enclosure provides high-speed data transmission via USB 3.1 Gen1 (5Gbps) and includes a 60W power adapter for stable operation, complemented by a 60mm silent fan for optimal cooling and enhanced drive safety.

Figure 1: ORICO 2 Bay Hard Drive Enclosure (Model 9728C3)
Package Contents
Please verify that all items listed below are included in your package:
- 1 x ORICO 2 Bay DAS (Direct Attached Storage)
- 1 x 1-meter USB-C 2-in-1 Data Cable (USB-C to USB-A with USB-C adapter)
- 1 x 12V/4A Power Adapter
- 1 x Screw Set
- 1 x User Manual

Figure 2: Package List for ORICO 2 Bay Hard Drive Enclosure
Setup Guide
1. Hardware Installation
- Open the Enclosure: Gently press the top cover of the enclosure to release the latch and open it.
- Remove Drive Trays: Pull out the metal drive trays from inside the enclosure. These trays are designed to accommodate both 3.5-inch and 2.5-inch SATA drives.
- Install Hard Drives: Secure your 2.5-inch or 3.5-inch SATA hard drives onto the metal trays using the provided screw set and screwdriver. Ensure the SATA connectors align correctly.
- Insert Drive Trays: Carefully slide the loaded drive trays back into the enclosure until they firmly connect with the internal SATA ports.
- Close the Enclosure: Close the top cover of the enclosure, ensuring it clicks securely into place.

Figure 3: Hard Drive Installation Steps
2. Connecting to Your Device
The ORICO 9728C3 enclosure is compatible with a wide range of devices and operating systems, including Windows, Mac OS, Chrome OS, and Android. It supports both USB-A and USB-C connections.
- Power Connection: Connect the 12V/4A power adapter to the DC 12V port on the back of the enclosure and plug it into a power outlet.
- Data Connection: Use the provided USB-C 2-in-1 data cable to connect the enclosure to your computer or compatible device. The cable supports both USB-A and USB-C ports.
- Power On: Press the power button located on the back of the enclosure to turn it on.

Figure 4: Compatible Systems and Devices

Figure 5: Front and Rear Panel Overview with Indicator Lights and Ports
Operating Instructions
1. Disk Recognition and Formatting
Once connected and powered on, your operating system should automatically detect the hard drives within the enclosure. For new drives, you may need to initialize and format them through your computer's Disk Management (Windows) or Disk Utility (Mac OS) before use. Follow your operating system's instructions for disk initialization and formatting.
2. Data Transfer
The enclosure supports USB 3.1 Gen1 with transfer speeds up to 5Gbps (approximately 260MB/s real read/write speeds). You can drag and drop files to and from the drives as you would with any other external storage device. The indicator lights on the front panel will flash blue during data reading or writing.

Figure 6: High-Speed Data Transmission Capabilities
3. Intelligent Disk Sleep Function
The enclosure features an intelligent disk sleep function to conserve power. The drives will hibernate alongside your computer's operating system. While this is designed for energy saving, some users have reported issues with the device not waking up automatically from sleep mode. If this occurs, you may need to manually power cycle the enclosure using the power button on the back to re-establish connection.

Figure 7: Intelligent Disk Sleep Feature
4. Indicator Lights
- Blue (Solid): Standby mode.
- Blue (Flashing): Data reading or writing activity.
- Red (Flashing): Indicates drive abnormalities or failures.
Maintenance
- Cooling: The enclosure features a built-in 60mm silent fan to optimize chassis cooling. Ensure the fan vents are not obstructed to maintain proper airflow and enhance the safety and durability of the internal hard drives.
- Cleaning: Use a soft, dry cloth to clean the exterior of the enclosure. Avoid using liquid cleaners or abrasive materials.
- Environment: Place the enclosure on a stable, flat surface away from direct sunlight, heat sources, and excessive moisture.

Figure 8: Efficient Cooling System
Troubleshooting
- Device Not Recognized:
- Ensure the power adapter is securely connected and the enclosure is powered on.
- Verify the USB data cable is properly connected to both the enclosure and your computer. Try a different USB port or cable.
- For new drives, ensure they are initialized and formatted in your operating system's Disk Management/Disk Utility.
- Try power cycling the enclosure (turn off, unplug, wait 10 seconds, plug back in, turn on).
- Drives Not Waking from Sleep Mode:
- The intelligent disk sleep function may sometimes prevent automatic wake-up. Manually press the power button on the back of the enclosure to restart it.
- Check your computer's power management settings to ensure USB devices are not set to power down.
- Slow Transfer Speeds:
- Ensure you are connected to a USB 3.0/3.1/3.2 port on your computer. Older USB 2.0 ports will result in significantly slower speeds.
- If using multiple disks simultaneously, transfer speeds may be slightly reduced.
- Verify the health of your hard drives. Degraded drives can impact performance.
- Red Flashing Indicator:
- A red flashing light indicates a drive abnormality or failure. Check the drive connection, try reseating the drive, or test the drive in another enclosure or system if possible.
Specifications
| Feature | Detail |
|---|---|
| Model | 9728C3 |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Item Weight | 2.2 Pounds (approx. 1 kg) |
| Memory Storage Capacity | 44 TB (2 x 22TB max) |
| Compatible Devices | NAS, Laptop, Desktop computers, Router, Tablet |
| Hard Disk Form Factor | 2.5 Inches / 3.5 Inches SATA I/II/III |
| Max Number of Supported Devices | 2 (bays) |
| Data Transfer Rate | 260 Megabytes Per Second (USB 3.1 Gen1 5Gbps) |
| Manufacturer | SHENZHEN ORICO TECHNOLOGIES CO.,LTD |
| Product Dimensions | 3.7 x 5.77 x 8.38 inches |
| Hardware Interface | USB 3.1 Type C |
| Color | Black |
| Power Adapter | 12V/4A (60W) |
Warranty and Support
For warranty information and technical support, please refer to the official ORICO website or contact their customer service directly. Keep your purchase receipt for warranty claims.
You can visit the ORICO Store for more information: ORICO Official Store
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