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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1066MHz SODIMM for MacBook Pro 13.3 MC374LL/A

SKU CH-A3J9-DS4QD

4GB DDR3 1066MHz SODIMM upgrades the Apple MacBook Pro 13.3 MC374LL/A to 8GB maximum across two slots

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 4GB DDR3 1066MHz module upgrades MacBook Pro 13.3 MC374LL/A
  • 204-pin SODIMM form factor fits the laptop memory slot exactly
  • CL7 7-7-7 timing at 1.5V delivers responsive system performance
  • Single 4GB stick leaves second slot free for future expansion
  • Computer Memory Solutions brand with lifetime warranty ensures reliable operation

MacBook Pro 13.3 DDR3 SODIMM

This Computer Memory Solutions module is a 4 GB DDR3 SODIMM built for the Apple MacBook Pro 13.3-inch Intel Core 2 Duo 2.4 GHz model MC374LL/A. It installs in a 204-pin slot and runs at 1066 MHz with CL7 timing.

Upgraders with one slot free

Owners of the named MacBook Pro who need a single 4 GB stick to reach the 8 GB maximum will find this module a direct fit. Builders working on any other laptop or desktop, or anyone needing ECC, registered memory or a different voltage, should look elsewhere.

DDR3 1066 CL7 specification

The stick operates at PC3 8500 speed with 7-7-7 timings at 1.5 V, unbuffered and non-ECC. Matching these exact figures is the deciding factor for compatibility with the target system.

How it compares

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

Price $19.99
Cheaper than about 91% 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 $5.00 per GB
Cheaper than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512648500SODRH
Total capacity4 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 13.3 Intel Core 2 Duo 2.4 GHz Mc374Ll/A
In the box
Included items1 Memory RAM Stick

Questions about this item

Will this 204-pin DDR3 SODIMM fit the memory slot in my MacBook Pro 13.3 MC374LL/A?

Yes, the module uses the standard 204-pin DDR3 SO-DIMM form factor that matches the two slots in your MacBook Pro 13.3 MC374LL/A.

Which way round does the notch on this 204-pin stick go when I slide it into the slot?

Line up the off-centre notch on the gold edge with the key in the socket, press firmly until the side clips click, then repeat for the second slot if you are installing two.

Do I ever need to replace this 4GB DDR3 1066MHz module once it is working?

The stick has no moving parts and no heat spreader, so it rarely fails; if a memory error appears years later, swap the module for another DDR3 1066MHz SO-DIMM.

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