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Two green 204-pin DDR3 SO-DIMM sticks, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR3 1066MHz CL7 1.5V 204-Pin SO-DIMM Kit

SKU CH-K7BD-M8NK6

An 8 GB two-stick DDR3 1066 MHz SO-DIMM kit for the Apple MacBook Pro 15.4-inch Core 2 Duo 2.53 GHz MC118LL/A

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8GB dual-channel kit boosts multitasking on supported MacBook Pro
  • DDR3 1066 MHz CL7 timing delivers responsive memory performance
  • 5 V unbuffered SO-DIMM matches original voltage specification
  • 204-pin form factor fits the 15.4-inch Core 2 Duo model
  • Lifetime warranty from Computer Memory Solutions backs long-term reliability

Apple MacBook Pro 15.4 upgrade kit

This 8 GB kit contains two 4 GB DDR3 1066 MHz SO-DIMM modules built for the Apple MacBook Pro 15.4-inch Intel Core 2 Duo 2.53 GHz (MC118LL/A). It targets owners of that specific notebook who need to reach the machine's 8 GB maximum across its two memory slots. The unbuffered non-ECC design matches the original specification exactly.

Low-voltage DDR3 operation

Each module runs at the standard 1.5 V with CL7 7-7-7 timing, so power draw and heat output stay within the laptop's original thermal envelope. No heat spreader is fitted, keeping the sticks thin enough for the tight SO-DIMM bays. Acoustic impact is zero because the memory adds no moving parts.

Direct slot replacement

The 204-pin form factor drops straight into the two factory sockets without adapters or cable routing. Using both slots frees no extra bay but satisfies the board's dual-channel architecture. Builders who need ECC, registered modules or speeds beyond PC3-8500 cannot use this kit.

How it compares

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

Price $35.99
Cheaper than about 82% 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 $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512648500SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsApple Macbook Pro 15.4 Intel Core 2 Duo 2.53 Mc118Ll/A
In the box
Included items2 Memory RAM Sticks

Questions about this item

How do I install the two 204-pin SO-DIMM sticks into the MacBook Pro 15.4 and what step is often missed?

Remove the battery and bottom cover, insert each module at an angle until the clips snap shut, then replace the cover before powering on; the step often missed is pressing firmly enough to engage both retaining clips on each slot.

What maintenance or replacement will this 8GB DDR3 kit need over time?

No routine maintenance is required; the modules have no heat spreader and carry a limited lifetime warranty from Computer Memory Solutions, so replacement is only necessary if a stick fails or the system is upgraded beyond the 8 GB maximum.

What limit appears first when the memory runs at 1066 MHz under sustained load?

The 8 GB capacity ceiling of the MacBook Pro 15.4 is reached before any bandwidth or thermal limit, since the system only supports two sockets and a maximum of 8 GB total.

More in Model-Specific Memory Upgrades

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