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Pair of green DDR3 memory modules with gold contacts

Simmtec, Inc

Simmtec, Inc 8GB 2x4GB DDR3 1066 PC3-8500 MacBook Pro 17 MC226LL/A Memory Upgrade

SKU CH-289E-PKW4V

8GB DDR3 1066 kit in two 4GB modules for the 17-inch MacBook Pro MC226LL/A

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • 8 GB capacity doubles multitasking headroom for demanding workloads
  • Dual-channel 2 x 4 GB kit maximises memory bandwidth on supported MacBook Pro 17 models
  • DDR3 1066 MHz (PC3-8500) matches factory speed for stable operation
  • System-specific design fits the MC226LL/A configuration without modification
  • 25 years component experience backs reliable module quality

Simmtec 8 GB DDR3 1066 kit

This Simmtec 8 GB kit contains two 4 GB DDR3 modules rated at 1066 MHz (PC3-8500). It is built as a system-specific upgrade for the 17-inch MacBook Pro identified by MC226LL/A. The memory arrives new from a supplier with 25 years of component experience.

For owners of the MC226LL/A MacBook Pro 17

This kit suits owners of the MC226LL/A 17-inch MacBook Pro who need an 8 GB DDR3 1066 upgrade. It is not for machines that take a different DDR3 speed grade or a different form factor. Buyers with other Mac models or non-Mac systems should verify their exact memory requirements first.

8 GB 2×4 GB DDR3 1066 specification

The decisive specification is the 8 GB capacity delivered as two 4 GB DDR3 1066 (PC3-8500) modules. Matching this exact capacity, module count, speed and form factor determines whether the upgrade will work in the target MacBook Pro.

How it compares

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

Price $23.99
Cheaper than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $3.00 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Total capacity8 GB (2 × 4 GB)
Performance
Rated speedDDR3 1066 (PC3 8500)

Questions about this item

Does my MacBook Pro 17 MC226LL/A need any specific firmware revision before installing this DDR3 1066 PC3-8500 memory?

The modules are built to the DDR3 1066 PC3-8500 specification that matches the MacBook Pro 17 MC226LL/A design, so no extra firmware step is required beyond the standard macOS updates Apple provides for that model.

Will this 2 x 4 GB DDR3 1066 kit run reliably if I keep the original 2 GB sticks installed alongside it?

Mixing capacities and speeds can prevent the MacBook Pro 17 MC226LL/A from booting or force it to run at the slowest module rate, so the manufacturer recommends populating both slots with this matched 8 GB kit and removing the old memory.

How can I confirm the new 8 GB DDR3 1066 kit is recognised at the correct speed after installation?

Open About This Mac or System Report and verify that Total Memory shows 8 GB and the Memory slot entries list DDR3 at 1066 MHz (PC3-8500) for each installed module.

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