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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM512648500SODRH 4GB DDR3 1066MHz SODIMM Dell Latitude E6420 E6420 ATG

SKU CH-45HF-M82M3

4GB DDR3 1066MHz SODIMM module for Dell Latitude E6420 and E6420 ATG laptops

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 4GB capacity expands system memory for Dell Latitude E6420 and E6420 ATG
  • DDR3 1066MHz PC3-8500 speed matches original specifications
  • CL7 latency with 7-7-7 timing delivers responsive performance
  • 204-pin SODIMM form factor fits laptop memory slots directly
  • Unbuffered non-ECC design ensures straightforward compatibility

System-Specific Upgrade

This 4GB SODIMM is built for Dell Latitude E6420 and E6420 ATG notebooks. It uses 204-pin DDR3 technology rated at 1066MHz with CL7 timing. The module runs at 1.5V and is unbuffered and non-ECC. It installs directly into the factory memory slot.

Compatibility Profile

It suits owners of the listed Latitude models who need a single 4GB stick to replace a failed module or fill an empty socket. Buyers who want more storage or a different memory generation should look at something else. The part is not designed for desktop platforms or newer laptop architectures.

Deciding Specification

The 204-pin DDR3 1066MHz interface determines whether this module fits and functions. Only systems accepting PC3-8500 SO-DIMMs at 1.5V will recognise it correctly. Verify the notebook model before ordering.

How it compares

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

Price $17.99
Cheaper than about 92% 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 $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 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 systemsDell Latitude E6420, E6420 Atg
In the box
Included items1 Memory RAM Stick

Questions about this item

Does my Dell Latitude E6420 need an empty 204-pin SODIMM slot to install this module?

Yes, the module uses a standard 204-pin DDR3 SO-DIMM form factor, so an available SODIMM slot in the laptop is required.

Can I add this 4 GB stick to an existing 2 GB module for a total of 6 GB?

The system supports up to 8 GB across two sockets, but modules must be installed in matched pairs for dual-channel mode; mixing capacities will run in single-channel.

How can I confirm the memory is running at 1066 MHz with CL7 timing after installation?

Check the BIOS memory information or a tool such as CPU-Z; it should report DDR3-1066 (PC3-8500) with 7-7-7 timings at 1.5 V.

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