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Two green DDR3 SODIMM modules with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR3 1333MHz CL7 SODIMM MacBook Pro 13" Late 2011 memory upgrade

SKU CH-A4SE-SD2A7

Two 4 GB DDR3 SODIMM modules rated at 1333 MHz CL7 for the 13-inch MacBook Pro (Late 2011)

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8GB dual-channel kit boosts multitasking on Late 2011 MacBook Pro 13
  • CL7 1333MHz timing delivers snappy responsiveness for everyday workloads
  • 5V unbuffered DDR3 SO-DIMM matches factory voltage and pinout exactly
  • Two 4GB modules fill both slots for maximum 16GB supported capacity
  • Major-brand chips backed by CMS lifetime warranty ensure long-term reliability

MacBook Pro Late 2011 memory kit

This 8 GB kit contains two 4 GB DDR3 SODIMM modules rated at 1333 MHz with CL7 timings. It is built for the 13 inch MacBook Pro with a 2.4 GHz Core i5 processor from late 2011. The unbuffered, non-ECC sticks use 1.5 V and install in the two available slots.

Sustained workload behaviour

The modules run at standard JEDEC voltage and timings, so they maintain their rated speed during extended sessions without thermal throttling. Major brand chips and 2Rx8 organisation provide stable throughput for everyday multitasking and media editing. No heat spreaders are fitted, relying on the notebook's internal airflow.

Installation notes

Installation requires removing the bottom case and seating both 204 pin sticks firmly until the latches click. The kit matches the factory slot count exactly, leaving no room for extra modules. Buyers who want more storage or a different memory generation cannot use this product.

How it compares

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

Price $36.99
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 $4.62 per GB
Cheaper than about 81% 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 nameComputer Memory Solutions
Model nameCM5126410600SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
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 "Core I5 in 2.4 13 in Late 2011
In the box
Included items2 Memory RAM Sticks

Questions about this item

How much power does the 1.5V DDR3 kit draw when the MacBook Pro runs all day?

The modules operate at 1.5V, the standard voltage for DDR3 SODIMMs, so power draw stays within the laptop's normal memory budget during sustained use.

Does the Late 2011 MacBook Pro need a firmware update before these 204-pin sticks will boot?

The kit is listed as compatible with the MacBook Pro 13" Late 2011 (MacBookPro8,1 / A1278) and requires no additional firmware beyond what Apple shipped for that model.

Will the CL7 timing work alongside the original 1333MHz modules already in the machine?

Yes — both the original memory and this CMS kit run at DDR3 1333 (PC3-10600), so the system will operate at the common speed without timing conflicts.

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