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Green circuit board with black memory chips and gold edge connector

OWC

OWC 4GB DDR4 2133MHz CL15 1.2V 260pin SODIMM for Dell XPS 15 9550

SKU CH-JARS-WV3WF

4GB DDR4 2133MHz CL15 1.2V SODIMM upgrades Dell XPS 15 9550 memory capacity

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boost responsiveness with 4 GB DDR4 at 2133 MHz
  • Low 1.2 V operation cuts power draw and heat
  • CL15 latency keeps data flowing smoothly
  • 260-pin SODIMM fits Dell XPS 15 9550 slot directly
  • JEDEC and RoHS compliant for a warranty-safe upgrade

Targeted upgrade for Dell XPS 15 9550

This OWC module adds 4GB of DDR4 memory to the Dell XPS 15 9550 laptop. It runs at 2133MHz with CL15 latency and 1.2V operation. The 260-pin SODIMM form factor fits the specific slot layout of this model. Buyers needing higher total capacity or ECC support should look elsewhere.

Installation requirements and system impact

The module is an unbuffered, non-ECC 1Rx8 stick that requires a free SODIMM slot in the Dell XPS 15 9550. No heat spreader is present, so it relies on the laptop's internal airflow. Installation is a user-serviceable DIY task that frees up system resources for multitasking and larger workloads.

Thermals, noise and power draw

Operating at the standard 1.2V DDR4 voltage, the module draws minimal power and generates little heat without a spreader. It adds no moving parts, so acoustic output remains unchanged. The JEDEC-compliant design ensures stable operation within the laptop's existing thermal envelope.

How it compares

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

Price $27.99
Cheaper than about 86% 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 $7.00 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2S1D41R804 GB
Total capacity4 GB
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell XPS 15 9550

Other versions of this model

5 more in the same range

Questions about this item

What is the CAS latency of this 4 GB DDR4 2133 MHz module?

The module runs at CL15 latency, which is the standard timing for DDR4 2133 MHz JEDEC specifications.

How much power does the 1.2 V DDR4 SODIMM draw during continuous operation?

Operating at the standard 1.2 V DDR4 voltage, the module draws minimal power and generates very little heat without a heat spreader.

Does my Dell XPS 15 9550 need a free 260-pin SODIMM slot to install this memory?

Yes, the upgrade requires an available 260-pin DDR4 SODIMM slot in the laptop.

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