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Green rectangular circuit board with gold edge connectors and black memory chips on both sides

Computer Memory Solutions

Computer Memory Solutions CM512642400SO 4GB DDR4 2400 SO-DIMM C105

SKU CH-HH0B-1YWM0

4GB DDR4 2400 SO-DIMM validated for Dell Latitude 15 3580, CL17 unbuffered, 1.2V operation

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4GB capacity adds responsive multitasking headroom
  • DDR4 2400 speed delivers fast data throughput
  • CL17 latency supports smooth system operation
  • 2V low voltage reduces power draw
  • 260-pin SO-DIMM fits Dell Latitude 15 3580

4 GB DDR4 SO-DIMM for Dell Latitude 15 3580

This 260-pin module delivers 4 GB of DDR4 2400 memory for the Dell Latitude 15 3580. It runs at 1.2 V with CL17 timings in an unbuffered, non-ECC configuration. The single stick uses a 2Rx8 organisation with major brand chips. It targets owners of that specific laptop needing a straightforward capacity increase.

Steady operation at rated speed

The module maintains its 2400 MHz data rate under continuous workloads without thermal throttling because it has no heat spreader and draws only 1.2 V. Unbuffered signalling keeps latency predictable at 17-17-17 across extended sessions. The 2Rx8 layout supports the platform's dual-channel architecture when a second stick is added. Sustained throughput matches the PC4 19200 specification without degradation.

Plain green PCB fits the laptop slot

A bare circuit board with 260 gold contacts slides directly into the SO-DIMM socket, requiring no extra clearance or tools. The lack of a spreader keeps the profile thin enough for the chassis. One stick is included, leaving the second slot open for a future upgrade to the 16 GB system maximum. Compatibility is validated for the 3580 model.

How it compares

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

Price $18.99
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 $4.75 per GB
Cheaper than about 80% 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 15 3580
In the box
Included items1Memory Ram Stick

Questions about this item

How much power does the 1.2 V DDR4 module draw when the Dell Latitude 15 3580 runs all day?

The module operates at the standard 1.2 V DDR4 voltage, keeping power draw and heat low during continuous use in the Latitude 15 3580.

What must the laptop already have for this 260-pin SO-DIMM to work?

The Dell Latitude 15 3580 needs a free DDR4 SO-DIMM slot; the system supports two sockets with a maximum of 16 GB total.

Will this CL17 2400 MHz stick run correctly beside an older CL15 module in the second slot?

Both modules will run at the slower CL17 timing and 2400 MHz speed, so the older CL15 stick simply matches the new module's settings.

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