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Green 260-pin DDR4 SODIMM memory module with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126417000SO 4GB DDR4 2133MHz SODIMM

SKU CH-TCS5-QPV3W

4GB DDR4 SODIMM running at 2133 MHz with CL15 timing, built for Dell XPS 15 9550 laptops

  • Capacity4GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Timing15-15-15
  • Voltage1.2V
  • 4GB capacity adds responsive multitasking headroom for Dell XPS 15 9550
  • DDR4 2133MHz speed matches factory specification for stable operation
  • CL15 15-15-15 timing delivers low-latency data access
  • 2V unbuffered design runs cool without extra power draw
  • 260-pin SODIMM form factor fits directly into the laptop memory slot

Compatible Dell XPS 15 9550 Upgrade

This 4 GB DDR4 SODIMM module is built for the Dell XPS 15 9550 laptop. It delivers a straightforward capacity increase for owners of that specific system. The single stick fits one of the two available slots and supports the platform's maximum of 32 GB total memory.

260-Pin Unbuffered Layout

The stick uses a standard 260-pin SO-DIMM edge connector with no heat spreader, keeping the profile low for tight laptop bays. Unbuffered, non-ECC organisation and a single-rank 1Rx8 layout mean it drops straight into the factory socket without configuration changes. One module ships in the package.

1.2 V Operation at 2133 MHz

Rated at DDR4 2133 (PC4-17000) with CL15 15-15-15 timings, the module runs at the JEDEC-standard 1.2 V. Low voltage and the absence of a spreader keep thermals modest inside the slim chassis. Power draw stays minimal during typical workloads, helping battery life and acoustic profile.

Highlights

  • 4GB capacity adds responsive multitasking headroom for Dell XPS 15 9550
  • DDR4 2133MHz speed matches factory specification for stable operation
  • CL15 15-15-15 timing delivers low-latency data access
  • 2V unbuffered design runs cool without extra power draw
  • 260-pin SODIMM form factor fits directly into the laptop memory slot

Specifications

BrandComputer Memory Solutions
ModelCM5126417000SO
Capacity4GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Timing15-15-15
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell XPS 15 Laptop (9550)
Package Content1 Memory RAM Stick

Questions about this item

What speed does the DDR4 2133 MHz SODIMM actually run at in the Dell XPS 15 9550?

The module is rated at DDR4 2133 (PC4 17000) and will operate at that speed if the laptop's memory controller supports it; otherwise it downclocks to the highest speed the platform allows.

Will the 260-pin SODIMM fit the Dell XPS 15 9550's memory slots?

Yes, the stick uses the standard 260-pin DDR4 SO-DIMM form factor that matches the two slots in the XPS 15 9550.

How do I install the module and what common mistake should I avoid?

Power off the laptop, open the bottom cover, align the notch on the 260-pin SODIMM with the slot key, insert at an angle and press down until the side clips click; the frequent error is not pushing firmly enough so the clips do not latch.

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