DELOCK interface adapter U.2 (SFF-8639) to M.2 Key M NVMe SSD, model 64301, black, host male

The DELOCK interface adapter allows installation of an M.2 PCIe NVMe SSD with M key or an M.2 SATA SSD with B key in 2280, 2260, 2242 and 2230 formats. When a NVMe SSD is used the adapter connects to the host via a U.2 (SFF-8639) interface; when a SATA M.2 SSD is used it connects via the SATA interface. The unit is designed for insertion into a 2.5" bay of a docking station for HDD/SSD and features a black metal top with a thermal conduction pad to help dissipate heat from the drive.

Advantages

The adapter supports both NVMe (M key) and SATA (B key) M.2 form factors in multiple module lengths, enabling flexible use of available M.2 SSDs. Installation is tool-free: the M.2 module is inserted into the slot and secured with a rubber nipple, simplifying drive swaps. The metal top with an internal thermal conduction pad provides direct contact with the SSD to improve cooling during operation.

Suitable for

• Installing M.2 NVMe (Key M) SSDs in systems with U.2 host ports
• Using M.2 SATA (Key B) SSDs where a SATA connection is available
• Mounting an M.2 SSD into a 2.5" drive bay of docking stations or enclosures

When it may not be suitable

This adapter requires a matching host interface (U.2/SFF-8639) for NVMe operation or an available SATA interface for SATA M.2 drives; it will not provide NVMe performance if the host connection does not support PCIe lanes. The product is a passive mechanical/electrical adapter and does not include active controllers, power supplies or enclosure-level features beyond the metal top and thermal pad.

Key specifications

• Supported M.2 module sizes: 2280, 2260, 2242, 2230
• Supported M.2 keys: M (NVMe) and B (SATA)
• Host interface: U.2 (SFF-8639) for NVMe; SATA for SATA M.2
• Cooling: metal top with thermal conduction pad
• Installation: tool-free with rubber nipple retention
• Colour: black

How to use

Insert the M.2 SSD into the M.2 slot on the adapter matching the module length and key type, then press the drive down and secure it using the rubber nipple on the board. For NVMe drives connect the adapter to the host using the U.2 interface; for SATA M.2 drives connect to the SATA interface. Place the assembled adapter into a 2.5" bay of a compatible docking station or enclosure and ensure the host system recognises the drive. Ensure connections are made with the system powered down where applicable and follow the host platform’s instructions for hot‑swap support if needed.

What to consider before purchase

• Verify the host device provides a U.2 (SFF-8639) port for NVMe operation or a SATA connection for SATA M.2 drives
• Confirm the M.2 SSD form factor (length 2280/2260/2242/2230) and key (M or B) are compatible
• Check whether your system supports NVMe over the provided host interface to achieve expected performance

Recommendations

Use this adapter with compatible U.2 host ports for NVMe drives to obtain full NVMe performance, and ensure good airflow around the 2.5" bay to aid the metal top and thermal pad in cooling the SSD.