Skip to content
WhatRAMFits.com
Apple logo

RAM for Apple MacBook (Late 2009) (A1342)

Model Years: 2009–2010

Max RAM: 8GBRAM Slots: 2RAM Type: DDR3 PC3-8500 1066MHz
✓ RAM Upgradeable

Quick answer

Our data matches the Apple MacBook (Late 2009) (A1342) with Crucial 4GB DDR3-1066 SODIMM (DDR3 PC3-8500, SO-DIMM, 1066MHz, 4GB); Kingston 4GB DDR3-1066 SODIMM (DDR3 PC3-8500, SO-DIMM, 1066MHz, 4GB).

Supported memory profile: DDR3 PC3-8500, SO-DIMM, 1066MHz, up to 8GB 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 Apple MacBook (Late 2009)

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 Apple MacBook (Late 2009) (A1342)?

Based on our compatibility data, the Apple MacBook (Late 2009) (A1342) supports DDR3 PC3-8500, SO-DIMM, 1066MHz, up to 8GB max, 2 slots. Matched modules include Crucial 4GB DDR3-1066 SODIMM (DDR3 PC3-8500, SO-DIMM, 1066MHz, 4GB); Kingston 4GB DDR3-1066 SODIMM (DDR3 PC3-8500, SO-DIMM, 1066MHz, 4GB). Always confirm your exact model number before purchasing.

How do I verify RAM compatibility?

Check that your device label or manual shows A1342 (or MacBook (Late 2009)). 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 Apple MacBook (Late 2009)

This device uses DDR3 PC3-8500 at 1066MHz. Maximum supported capacity is 8GB.

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.