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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

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 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.

Highlights

  • 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

Specifications

BrandComputer Memory Solutions
ModelCM512648500SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Macbook Pro 13.3 Intel Core 2 Duo 2.4Ghz Mc374Ll/A
Package Content1 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.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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