1. Introduction
The AD-Link PCIe 5.0 Gen5 M.2 NVMe to U.2/U.3 SSD Adapter Hard Drive Box is a high-performance solution designed to convert M.2 NVMe SSDs into U.2 (SFF-8639) or U.3 (SFF-TA-1001) form factors. This adapter supports the latest PCIe 5.0 X4 standard, offering blazing fast transfer speeds of up to 128Gb/Sec, while maintaining backward compatibility with Gen3 and Gen4 PCIe standards. Its robust design features an all-aluminum alloy shell for excellent heat dissipation and durability, along with advanced circuit protection to ensure the safety and stability of your SSD.

2. Specifications
| Attribute | Value |
|---|---|
| Brand Name | ADT-Link |
| Product Models | R74B, R74C |
| Type | Hard Drive Adapters |
| Transfer Speed (Max) | PCIe Gen4 x4: 64Gb/Sec, PCIe Gen5 x4: 128Gb/Sec |
| Compatibility | M.2 NGFF Key M (2230, 2242, 2260, 2280) NVMe SSD |
| Output Interface | U.2 (SFF-8639) / U.3 (SFF-TA-1001) |
| Shell Material | CNC Aluminum Alloy |
| Dimensions | 100.3 x 70 x 7mm (approximate) |
| Weight | 60g (approximate) |
| Connector | Foxconn PCIe Gen5 LDP 1683-15B38-9H (30u thick gold plating) |
| Power Management | DCDC high current module for stable voltage |
| Safety Features | Protective circuits to prevent SSD damage |
| Certification | RoHS |


3. Package Contents
The package typically includes:
- 1x AD-Link PCIe 5.0 Gen5 M.2 NVMe to U.2/U.3 SSD Adapter (R74B or R74C model)
- 1x Aluminum Alloy Shell (top and bottom plates)
- Mounting Screws for SSD and enclosure

4. Setup and Installation
Follow these steps to install your M.2 NVMe SSD into the AD-Link adapter:
- Prepare the Adapter: Carefully remove the top cover of the aluminum alloy shell from the adapter board.
- Insert M.2 NVMe SSD: Locate the M.2 slot on the adapter board. Gently insert your M.2 NVMe SSD (2230, 2242, 2260, or 2280 size) into the slot at an angle.
- Secure the SSD: Press down the SSD and secure it with the provided screw into the appropriate mounting hole (2230, 2242, 2260, or 2280) on the adapter board.
- Assemble the Enclosure: Place the top aluminum cover back onto the adapter board, ensuring it aligns correctly.
- Secure the Enclosure: Use the remaining screws to fasten the top and bottom plates of the aluminum shell together.
- Connect to Host System: Connect the U.2 (SFF-8639) or U.3 (SFF-TA-1001) connector of the assembled adapter to a compatible port on your host system (e.g., server, workstation, or PC with a U.2/U.3 interface).


5. Operating Instructions
Once the M.2 NVMe SSD is installed in the adapter and connected to your host system, it should be recognized as a storage device. The operating system will typically detect it automatically. You may need to initialize and format the SSD if it's new or if you wish to reconfigure it.
- For New SSDs: Open Disk Management (Windows) or Disk Utility (macOS/Linux) to initialize the disk, create partitions, and format it for use.
- Data Transfer: You can now use the SSD for data storage, operating system installation, or as a high-speed scratch disk.
- Performance: The adapter is designed to deliver maximum performance for PCIe Gen4 and Gen5 NVMe SSDs. Ensure your host system's U.2/U.3 port and PCIe lanes support the desired generation for optimal speeds.

6. Maintenance
The AD-Link SSD adapter is designed for durability and requires minimal maintenance. However, consider the following:
- Cleaning: Keep the adapter and its enclosure clean and free from dust. Use a soft, dry cloth for cleaning. Avoid liquid cleaners.
- Heat Management: The aluminum alloy shell provides excellent heat dissipation. Ensure adequate airflow around the adapter, especially in high-performance scenarios, to prevent overheating of the SSD.
- Firmware Updates: Periodically check the ADT-Link website for any firmware updates for the adapter, although these are typically not required for passive adapters.
- Physical Inspection: Occasionally inspect the connectors for any signs of wear or damage.
7. Troubleshooting
- SSD Not Detected:
- Ensure the M.2 NVMe SSD is correctly seated in the adapter's M.2 slot and secured.
- Verify that the adapter's U.2/U.3 connector is firmly connected to the host system.
- Check if your host system's U.2/U.3 port is enabled in the BIOS/UEFI settings.
- Confirm that your M.2 SSD is NVMe (not SATA M.2), as this adapter only supports NVMe.
- Test the SSD directly in a compatible M.2 slot on a motherboard if possible, to rule out SSD issues.
- Slow Performance:
- Ensure your host system's U.2/U.3 port and PCIe lanes support the PCIe generation of your SSD (Gen4 for 64Gb/s, Gen5 for 128Gb/s).
- Check for updated drivers for your motherboard's chipset and U.2/U.3 controller.
- Monitor SSD temperature; excessive heat can lead to thermal throttling and reduced performance. The aluminum shell helps, but proper system airflow is still important.
- Physical Damage:
- If the adapter or SSD appears physically damaged, discontinue use and contact support.
8. User Tips
- Always handle the adapter and SSD with care to avoid electrostatic discharge. Consider using an anti-static wrist strap.
- When installing the M.2 SSD, ensure it clicks into place before securing it with the screw.
- For optimal thermal performance, ensure the aluminum enclosure is properly assembled and all screws are tightened.
- If using in a server environment, verify that your server's backplane supports U.2/U.3 NVMe drives.
9. Warranty and Support
For warranty information and technical support, please refer to the official ADT-Link website or contact your point of purchase. Keep your proof of purchase for any warranty claims.