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Green printed circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 4GB DDR3 1066MHz PC3-8500 SODIMM 204-Pin Memory Upgrade

SKU CH-Q7SR-JPHB5

4GB DDR3 1066MHz SODIMM module for 2008-2010 MacBook Pro, MacBook, iMac and Mac mini models

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 4GB capacity lets Mac run more apps together
  • DDR3 1066MHz speed matches original Mac spec
  • 204-pin SODIMM fits Late 2008 to Mid 2010 MacBook Pro
  • 50V unbuffered non-ECC design works with Apple memory controller
  • Major-brand chips give reliable operation in iMac, MacBook and Mac mini

4GB DDR3 1066MHz SODIMM for Apple Mac

This 4GB DDR3 1066MHz PC3-8500 SODIMM module is built for specific Apple MacBook Pro, MacBook, iMac and Mac mini models released between 2008 and 2010. It uses a 204-pin unbuffered non-ECC design with major-brand chips and operates at 1.50V. The kit contains a single 4GB stick ranked 2Rx8.

Suits owners of listed 2008–2010 Macs.

The memory matches Apple order numbers such as MB417LL/A, MB418LL/A, MC507LL/A and model IDs including iMac9,1, MacBookPro5,1 and Macmini3,1. Buyers with Macs released after 2010 or systems needing a different pin count, voltage or DDR generation cannot use this module. Check your exact model identifier before ordering.

1066MHz DDR3 speed and 204-pin SODIMM form factor

The decisive specification is the DDR3 1066MHz (PC3-8500) speed combined with the 204-pin SO-DIMM form factor. Only Macs that officially support this exact speed, voltage and pin layout will recognise and run the module correctly.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $3.75 per GB
Cheaper than about 86% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR3 Apple Mac RAM Memory Upgrades
Total capacity4 GB
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

Which A-Tech DDR3 1066 MHz SODIMM capacity should I pick for my Late 2009 iMac?

This module is a single 4 GB stick; add one or two depending on how many slots your iMac has free and the maximum memory Apple specifies for that model.

What does the PC3-8500 rating mean once the module is installed in a MacBook Pro?

PC3-8500 confirms a 1066 MT/s data rate; the MacBook Pro will run the memory at that speed, giving the bandwidth the platform expects for DDR3 1066 operation.

Will the 204-pin SO-DIMM fit the DDR3 slot in a Mid 2010 Mac mini?

Yes — the 204-pin SO-DIMM form factor matches the DDR3 memory slots used in the Mid 2010 Mac mini and the other listed Apple systems.

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