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Green rectangular circuit board with gold edge connector and black memory chips

Computer Memory Solutions

Computer Memory Solutions CM2048642400SO 16GB DDR4 19200 2400MHz Non-ECC SODIMM upgrade Dell Inspiron 15 5577

SKU CH-42Z9-04PN5

A 16 GB DDR4 SODIMM running at 2400 MHz with CL17 timing for Dell Inspiron 15 5577, Precision 5520 and XPS 15 9560 laptops

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 16 GB DDR4 2400 MHz boosts multitasking speed
  • CL17 1.2 V timing keeps latency low
  • 260-pin SODIMM fits Dell Inspiron 15 5577 slot
  • 2Rx8 rank supports up to 32 GB total
  • Lifetime warranty from Computer Memory Solutions

System-Specific Upgrade for Dell Laptops

This 16 GB DDR4 SO-DIMM module is built for the Dell Inspiron 15 5577, Precision 5520 and XPS 15 9560. It targets owners of those models who need a single 16 GB stick to reach the platform maximum of 32 GB across two slots. Buyers with other laptop lines or desktop boards cannot use this 260-pin form factor.

Sustained Operation at 1.2 V

Running at DDR4 2400 with CL17 17-17-17 timings, the unbuffered 2Rx8 module maintains its rated speed without a heat spreader. The low 1.2 V voltage keeps thermals steady during long workloads, so performance does not throttle under continuous memory pressure.

Straightforward Slot Installation

The stick inserts into any free SO-DIMM socket; no tools or firmware steps are required. Because the kit contains only one module, installers must match the existing stick’s speed and voltage to avoid mismatch errors. Systems already populated with two modules cannot accept this upgrade.

How it compares

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

Price $81.99
Cheaper than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.12 per GB
Cheaper than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642400SO
Total capacity16 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 Inspiron 15 (5577), Precision Mobile Workstation 5520, XPS 15 Laptop (9560)
In the box
Included items1Memory Ram Stick

Questions about this item

Does the 1.2 V DDR4 2400 MHz module run cooler than higher-voltage memory during all-day use?

The 1.2 V operating voltage is the standard low-power level for DDR4 SO-DIMMs, so heat output stays minimal during continuous operation.

My Dell Inspiron 15 5577 has two slots — can I add this 16 GB stick alongside the original 8 GB module?

Yes, the laptop supports up to 32 GB across its two 260-pin slots, so a 16 GB module pairs with an existing 8 GB stick for 24 GB total.

Will the CL17 2400 MHz timing work automatically with the factory memory already in my Precision 5520?

The module uses standard JEDEC DDR4-2400 CL17 timings, so the system will configure it automatically at the common speed without BIOS changes.

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