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Two green circuit boards with black memory chips and gold edge connectors

Computer Memory Solutions

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

SKU CH-E3EB-876JT

8GB kit of two 4GB DDR3 1333MHz CL7 SODIMM modules for the 2011 13-inch MacBook Pro

  • 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 lifts multitasking headroom on Late 2011 13-inch MacBook Pro
  • CL7 latency at 1333 MHz keeps response tight for everyday workloads
  • 5 V unbuffered SODIMMs match factory voltage spec exactly
  • Two 4 GB modules fill both slots for full 8 GB capacity
  • Tested compatible with MacBookPro8,1 and MD314LL/A identifiers

Targeted MacBook Pro upgrade

This 8 GB kit contains two 4 GB DDR3 1333 MHz SODIMM modules built for the Apple MacBook Pro "Core i7" 2.8 13" Late 2011. Each stick uses a 204-pin layout, runs at 1.5 V and carries CL7 7-7-7 timings. The unbuffered non-ECC design matches the factory specification for this notebook.

Replaces the original 4 GB or 8 GB configuration

The machine ships with two slots and a 16 GB ceiling, so this kit fills both sockets and doubles the stock 4 GB amount. Builders who already run 8 GB in a mismatched pair gain matched 2Rx8 ranks and guaranteed CMS compatibility. The jump is worth it when the system slows under multitasking or virtual machines.

Fits the 13-inch Late 2011 logic board directly

No heat spreader means the modules sit low under the keyboard deck without clearance issues. The 1.5 V rating draws standard power from the existing regulator. Buyers who need more than 16 GB total capacity or who use a different MacBook generation 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 $34.99
Cheaper than about 83% 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 $4.37 per GB
Cheaper than about 82% of the 20,941 comparable items (median $8.19 per GB).

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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 I7 in 2.8 13 in Late 2011
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will these 204-pin DDR3 SO-DIMM modules fit the two memory slots in my MacBook Pro 13-inch Late 2011?

Yes, the kit matches the 204-pin DDR3 SO-DIMM form factor and the system has two slots supporting up to 16 GB total, so both 4 GB sticks install directly.

What is the correct way to seat the modules so the Mac recognises the full 8 GB?

Insert each stick at an angle into the slot, then press firmly until the side clips click; the common mistake is stopping before the clips engage, which leaves the module partially connected.

When should I expect to replace these CL7 1.5 V modules?

They carry a limited lifetime warranty from CMS and have no moving parts; replacement is only needed if a stick fails or you upgrade beyond the 16 GB maximum the machine accepts.

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