Lenovo 4XB0W79581 internal solid state drive 512 GB M.2 PCI Express NVMe

The Lenovo ThinkPad 512GB PCIe NVMe OPAL2 M.2 2280 SSD (MPN 4XB0W79581) is an internal solid-state drive designed as an upgrade for compatible ThinkPad notebooks. With a 512 GB capacity in the M.2 2280 form factor and PCIe NVMe interface, it delivers faster system responsiveness and application load times compared with conventional hard drives.

Advantages

This SSD provides high sequential read speeds up to 3500 MB/s and write speeds up to 2900 MB/s, low weight (0.009 kg), and OPAL2 support for basic self-encryption. Its M.2 2280 format and NVMe protocol ensure compact installation and efficient data transfer suitable for modern laptops.

Suitable for

• Upgrading compatible Lenovo ThinkPad notebooks
• Improving boot and application load times on laptops
• Replacing older SATA drives with a faster NVMe solution

Key specifications

• Capacity: 512 GB
• Form factor: M.2 2280
• Interface: PCIe NVMe
• Sequential read speed: up to 3500 MB/s
• Sequential write speed: up to 2900 MB/s
• Security: OPAL2 (self-encryption)
• Weight: 0.009 kg
• Manufacturer part number (MPN): 4XB0W79581

How to use

Power down the notebook, disconnect power and battery if applicable, and open the service access panel according to the manufacturer’s instructions. Insert the M.2 2280 SSD into the M.2 slot at the correct angle and secure it with the mounting screw. Reassemble the device, power on, and initialize the drive in the operating system (partition, format, and install the OS or migrate data as needed).

Recommendations

Verify that your ThinkPad model supports M.2 2280 PCIe NVMe SSDs and OPAL2 if encryption is required. Use proper ESD precautions during installation and back up important data before performing any drive replacement or migration.