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Green circuit board memory module with black chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions CM512642400SO 4GB DDR4 2400 CL17 2Rx8

SKU CH-MBD8-AHK37

4GB DDR4 2400 CL17 SO-DIMM for Dell Latitude 3490, 3590 and 5290 laptops

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4GB capacity boosts multitasking on supported Dell Latitude laptops
  • DDR4 2400 speed delivers 19200 MB/s bandwidth for responsive performance
  • CL17 timing at 1.2V reduces latency while keeping power draw low
  • 2Rx8 unbuffered design ensures stable operation in dual-channel configurations
  • Tested compatible with Latitude 3490, 3590, 5290 and 5580, 5590, E5570 systems

4GB DDR4 SO-DIMM for Dell Latitude

This 4GB DDR4 2400 module uses a 260-pin SO-DIMM form factor with CL17 timing and 1.2V operation. It is built as a single 2Rx8 unbuffered stick without a heat spreader. The part is intended for owners of Dell Latitude 3490, 3590 or 5290 laptops who need a straightforward memory upgrade.

Check slot count and maximum memory

The compatible Latitude models listed have two memory sockets and support up to 32GB total capacity. Verify how many slots your unit currently has populated before ordering. Ensure the system runs DDR4 SO-DIMM memory and that the existing modules match the 2400 speed grade for best stability.

Unbuffered stick with major-brand chips

The module uses major-brand chipset components and carries no heat spreader, keeping the profile low for tight laptop chassis. A 260-pin edge connector aligns with the standard DDR4 SO-DIMM socket. Computer Memory Solutions guarantees compatibility with the listed Dell models and provides a limited lifetime warranty against manufacturing defects.

How it compares

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

Price $21.99
Cheaper than about 89% 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 $5.50 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512642400SO
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell Latitude 3490, 3590, 5290
In the box
Included items1Memory Ram Stick

Questions about this item

Does the CM512642400SO box contain only the 4 GB DDR4 2400 SO-DIMM or are tools or cables included?

The package includes one 260-pin DDR4 2400 CL17 2Rx8 SO-DIMM module; no tools, cables or additional components are supplied.

Should I choose the single 4 GB stick or a larger kit for my Dell Latitude 3490, 3590 or 5290?

This listing is a single 4 GB stick; the platforms support up to 32 GB across two sockets, so add a second matching module if you need more capacity.

What does the DDR4 2400 (PC4 19200) rating mean once the module is installed in a Latitude 3490?

It will run at 2400 MHz with CL17 timing at 1.2 V as non-ECC unbuffered memory, provided the system’s memory controller supports that speed.

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