1. Introduction
The Akasa AK-HDA-03 is a robust mounting bracket designed to convert a standard 3.5-inch internal drive bay into a space for up to two 2.5-inch Solid State Drives (SSDs) or Hard Disk Drives (HDDs). This adapter provides an efficient solution for integrating smaller form factor drives into desktop PC cases, optimizing internal space and ensuring secure installation.
This manual provides detailed instructions for the installation, operation, and maintenance of your Akasa AK-HDA-03 adapter.
2. Product Overview
Features:
- Transforms a 3.5-inch internal drive bay to accommodate up to two 2.5-inch HDDs or SSDs.
- Space-saving design, ideal for Mini PCs or systems with limited drive bays.
- Constructed from durable SECC steel for long-lasting sturdiness.
- Universal compatibility with all types of 2.5-inch hard drives (SSDs and HDDs) and standard 3.5-inch PC slots.
Package Contents:
- 1 x Akasa AK-HDA-03 3.5-inch to 2.5-inch Drive Bay Adapter
- Mounting screws for 2.5-inch drives and case installation

Image 1: The Akasa AK-HDA-03 mounting bracket, ready for drive installation.
3. Setup and Installation
Follow these steps to install your 2.5-inch drives into the adapter and then install the adapter into your PC's 3.5-inch drive bay.
Step 1: Prepare Your Drives
Ensure your 2.5-inch SSDs or HDDs are ready for installation. The adapter supports drives with heights ranging from 7mm to 15.5mm. Refer to the diagram below for compatible configurations.

Image 2: Diagram illustrating compatible 2.5-inch drive height configurations for the adapter.
Step 2: Mount 2.5-inch Drives to the Adapter
- Align your 2.5-inch drive(s) with the screw holes on the adapter. The adapter is designed to hold one or two drives.
- Secure the drive(s) to the adapter using the provided small screws. Ensure they are tightened firmly but do not overtighten.

Image 3: Two 2.5-inch SSDs securely mounted within the Akasa AK-HDA-03 adapter.

Image 4: Two 2.5-inch HDDs securely mounted within the Akasa AK-HDA-03 adapter.
Step 3: Install the Adapter into a 3.5-inch Drive Bay
- Locate an available 3.5-inch drive bay in your PC case.
- Slide the assembled adapter (with drives) into the 3.5-inch bay.
- Secure the adapter to the PC case using the larger screws provided. Ensure it is firmly attached to prevent vibration.
- Connect the necessary SATA data and power cables to your 2.5-inch drives.

Image 5: The Akasa AK-HDA-03 adapter, with drives installed, mounted within a 3.5-inch drive bay of a PC case.
4. Operating
The Akasa AK-HDA-03 is a passive mounting bracket. Once installed and connected, the drives will operate as standard 2.5-inch drives within your system. Ensure your operating system recognizes the newly installed drives and format them if necessary.
5. Maintenance
The Akasa AK-HDA-03 requires minimal maintenance. Periodically check that all screws remain tight to prevent vibration and ensure secure mounting. If dust accumulates, gently clean the bracket and surrounding area with a soft, dry cloth or compressed air. Do not use liquid cleaners.
6. Troubleshooting
Drives Not Detected:
- Ensure all SATA data and power cables are securely connected to both the drives and the motherboard/power supply.
- Verify that the drives are properly seated and screwed into the adapter.
- Check your PC's BIOS/UEFI settings to ensure the SATA ports are enabled and the drives are recognized.
- If using a new drive, it may need to be initialized and formatted in Disk Management (Windows) or Disk Utility (macOS).
Bracket Not Fitting in 3.5-inch Bay:
- Ensure you are attempting to install it into a standard 3.5-inch internal drive bay.
- Check for any obstructions within the drive bay.
- Some PC cases may require specific mounting rails or trays for 3.5-inch bays; ensure these are compatible or removed if not needed.
7. Specifications
| Attribute | Value |
|---|---|
| Model Number | AK-HDA-03 |
| Material | SECC Steel (Alloy Steel) |
| Color | Black |
| Drive Compatibility | 2 x 2.5-inch SSD/HDD (7mm - 15.5mm height) |
| Bay Compatibility | 1 x 3.5-inch internal drive bay |
| Hardware Platform | PC |
8. Warranty and Support
Akasa products are manufactured to high standards and come with a manufacturer's warranty. For specific warranty details, please refer to the warranty information provided with your purchase or visit the official Akasa website. If you encounter any issues or require technical assistance, please contact Akasa customer support through their official channels.