Lenovo 4XB1M86955 internal solid state drive 1 TB M.2 PCI Express 4.0 NVMe

The Lenovo 1 TB Performance PCIe Gen4 NVMe OPAL2 M.2 2280 SSD (model 4XB1M86955) is an internal solid state drive designed for laptop upgrades. With a 1 TB capacity in the M.2 2280 form factor and PCIe 4.0 NVMe interface, it delivers faster data transfer and improved system responsiveness for supported ThinkPad notebooks. The drive is OPAL2-compliant and is covered by a one-year warranty when used in qualifying devices.

Advantages

This SSD provides high-speed PCIe Gen4 NVMe performance in a compact M.2 2280 module, increasing boot and application load speeds and reducing latency compared with traditional SATA storage. The 1 TB capacity allows for substantial storage of applications and data while maintaining energy efficiency and low weight suitable for laptop use. OPAL2 support enables basic hardware-based encryption compatibility on supported systems.

Suitable for

• Upgrading ThinkPad notebooks that qualify for this Lenovo M.2 SSD
• Improving system responsiveness for everyday productivity and professional workloads
• Storage expansion for gaming, media editing, and large file handling

Key specifications

• Brand: Lenovo
• Model / MPN: 4XB1M86955
• Capacity: 1000 GB (1 TB)
• Form factor: M.2 2280
• Interface: PCI Express 4.0 (NVMe)
• Security: OPAL2 compliance
• Warranty: 1 year (qualified devices)
• EAN: 195892093091
• Weight: 0.0072 kg

How to use

Power down the laptop and disconnect power sources, then open the access panel following the manufacturer's service instructions. Locate the M.2 slot and carefully insert the SSD at the correct angle, securing it with the mounting screw. Reassemble the device, power it on, and enter the system BIOS/UEFI to confirm the drive is recognized. Initialize, partition, and format the new SSD in the operating system as required, then install or migrate the operating system and data if needed.

Recommendations

Use this Lenovo M.2 PCIe Gen4 NVMe SSD in notebooks listed as compatible by Lenovo or an authorized service guide. Ensure firmware and BIOS/UEFI are up to date before installation. Back up critical data before performing OS migration or drive replacement.