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RAM for ThinkPad ThinkPad X220 (4291)

Model Years: 2011–2012

Max RAM: 16GBRAM Slots: 2RAM Type: DDR3 PC3-10600 1333MHz
✓ RAM Upgradeable

Quick answer

Our data matches the ThinkPad ThinkPad X220 (4291) with Kingston 8GB DDR3-1333 SODIMM (DDR3 PC3-10600, SO-DIMM, 1333MHz, 8GB); Crucial 8GB DDR3L-1600 SODIMM (DDR3 PC3-12800, SO-DIMM, 1600MHz, 8GB); Kingston 4GB DDR3-1333 SODIMM (DDR3 PC3-10600, SO-DIMM, 1333MHz, 4GB), plus 1 more option listed below.

Supported memory profile: DDR3 PC3-10600, SO-DIMM, 1333MHz, up to 16GB max, 2 slots.

Before buying, confirm your exact model number, memory generation, form factor (SO-DIMM), speed, and maximum supported capacity. Live eBay listings are shown below and may change.

Compatible RAM for the ThinkPad ThinkPad X220

Listings and prices are pulled from eBay and may change. Always verify compatibility before purchase. Listings are updated daily.

Frequently Asked Questions

What RAM fits the ThinkPad ThinkPad X220 (4291)?

Based on our compatibility data, the ThinkPad ThinkPad X220 (4291) supports DDR3 PC3-10600, SO-DIMM, 1333MHz, up to 16GB max, 2 slots. Matched modules include Kingston 8GB DDR3-1333 SODIMM (DDR3 PC3-10600, SO-DIMM, 1333MHz, 8GB); Crucial 8GB DDR3L-1600 SODIMM (DDR3 PC3-12800, SO-DIMM, 1600MHz, 8GB); Kingston 4GB DDR3-1333 SODIMM (DDR3 PC3-10600, SO-DIMM, 1333MHz, 4GB); Crucial 4GB DDR3-1333 SODIMM (DDR3 PC3-10600, SO-DIMM, 1333MHz, 4GB). Always confirm your exact model number before purchasing.

How do I verify RAM compatibility?

Check that your device label or manual shows 4291 (or ThinkPad X220). Confirm memory generation, form factor (SO-DIMM), speed, slot count, and maximum supported capacity match the specs on this page before ordering.

Can I mix RAM speeds or capacities?

Many systems run best with matched pairs (same capacity and speed). Mixing capacities or speeds may work but can force lower speeds or single-channel mode — check your OEM documentation.

Are these listings live and current?

Current eBay listings for compatible RAM modules are shown below. Prices and availability change frequently — verify listing details and seller ratings before you buy.

RAM Upgrade Guide for the ThinkPad ThinkPad X220

This device uses DDR3 PC3-10600 at 1333MHz. Maximum supported capacity is 16GB.

This model has 2 RAM slots. Installing matched pairs (dual-channel) gives the best performance — use identical capacity modules in both slots.

Always power off and unplug your device before installing RAM. Ground yourself to avoid static discharge.