1. Introduction
The ASHATA PH492-MD M.2 to Oculink SFF-8612 Adapter is designed to expand your system's storage capabilities by allowing you to connect PCIe NVMe SSDs via an Oculink SFF-8612 interface. This adapter facilitates fast and secure data transfer utilizing the NVMe protocol over PCIe 3.0/4.0 signals, providing a seamless connection for your SSD.
Key features include:
- Fast & Secure Transfer: Utilizes NVMe protocol for speedy and secure PCI Express signal transmission.
- Seamless Connection: Connect your SSD effortlessly using an optional cable for smooth data transfer.
- Easy Installation: Effortlessly plug in this PCIe 3.0 M.2 M Key to Oculink SFF-8611 SFF-8612 host adapter for quick setup.
- Expanded System: Enhance your system's capabilities with the SFF-8612 interface for seamless device connectivity.
2. Package Contents
Please verify that all items are present in your package:
- 1 x M.2 to SFF-8611 Host Adapter Card (PH492-MD)
- 1 x Screw
- 1 x Screw Bolt (may vary by package)
- 1 x Screwdriver
3. Specifications
| Feature | Description |
|---|---|
| Item Type | M.2 to SFF-8611 Host Adapter |
| Material | PCB |
| Support | PCIe 3.0 / 4.0 |
| Interface | SFF-8611 4i |
| Package Dimensions | 3.94 x 2.36 x 0.39 inches |
| Item Weight | 0.317 ounces |
| Model Number | PH492-MD |
4. Compatibility Notes
It is crucial to ensure your computer system meets the following compatibility requirements:
- Your computer's M.2 interface must support PCIe x4 NVMe M.2 SSDs.
- PCIe x2 and standard M.2 interfaces are not compatible with this adapter.

5. Setup and Installation
Follow these steps to install your ASHATA PH492-MD adapter:
- Prepare Your System: Power off your computer and disconnect it from the power source. Open your computer case to access the motherboard.
- Locate M.2 Slot: Identify an available M.2 slot on your motherboard that supports PCIe x4 NVMe SSDs. Refer to your motherboard's manual for specific M.2 slot capabilities.
- Insert the Adapter: Carefully align the ASHATA PH492-MD adapter with the M.2 slot and gently push it in until it is fully seated. The adapter is designed to fit securely.
- Secure the Adapter: Use the provided screw and screw bolt (if applicable) to secure the adapter to the motherboard's M.2 standoff. Use the included screwdriver for this step.


- Connect Oculink Cable: Connect an SFF-8611 cable (not included) to the SFF-8612 port on the adapter. Ensure the cable is securely connected.

- Connect to SSD/Device: Connect the other end of the SFF-8611 cable to your PCIe NVMe SSD or other compatible Oculink device. For example, it can be used with an SFF-8611 to SFF-8639 cable to connect to a U.2 U.3 hard disk.

- Close Case and Power On: Once all connections are secure, close your computer case, reconnect the power, and power on your system.
6. Operation
After successful installation, your operating system should detect the connected NVMe SSD or Oculink device. You may need to initialize and format the new storage device through your operating system's disk management tools before it can be used. Refer to your operating system's documentation for instructions on managing new storage devices.
7. Maintenance
The ASHATA PH492-MD adapter requires minimal maintenance. To ensure optimal performance and longevity:
- Keep the adapter free from dust and debris. Use compressed air if necessary to clean around the components.
- Handle the adapter with care to avoid physical damage to the PCB or connectors.
- Ensure proper airflow within your computer case to prevent overheating of components.
8. Troubleshooting
If you encounter issues with your ASHATA PH492-MD adapter, consider the following troubleshooting steps:
- Device Not Detected:
- Verify that the adapter is correctly seated in a compatible M.2 PCIe x4 slot.
- Ensure the Oculink cable is securely connected to both the adapter and the SSD/device.
- Check your motherboard's BIOS/UEFI settings to ensure the M.2 slot is enabled and configured for NVMe.
- Confirm that your operating system has the necessary drivers for NVMe devices.
- Slow Performance:
- Ensure your motherboard's M.2 slot supports PCIe 3.0 or 4.0 as required by your SSD.
- Verify that the connected SSD is functioning correctly.
- Physical Damage: Inspect the adapter and cables for any visible signs of damage. If damage is found, discontinue use and consider replacement.
If problems persist after following these steps, please contact ASHATA customer support for further assistance.
9. Warranty and Support
ASHATA products are manufactured to high-quality standards. For warranty information and technical support, please refer to the documentation included with your purchase or visit the official ASHATA website. When contacting support, please have your product model (PH492-MD) and purchase details readily available.
You can visit the ASHATA store for more information: ASHATA Store on Amazon