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Green circuit board with black memory chips and gold edge connector

OWC

OWC 4GB DDR4 2133MHz CL15 1.2V 260-pin SODIMM laptop RAM

SKU CH-CS45-1ZM5Q

A 4 GB DDR4 SODIMM running at 2133 MHz with CL15 latency and 1.2 V for laptop or NAS upgrades

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forLaptops, All-in-One Systems, and NAS Systems

Capacity 4GB

  • Boost responsiveness with 4 GB DDR4 2133 MHz CL15 memory
  • Low 1.2 V operation reduces power draw and heat
  • 260-pin SO-DIMM fits laptops, all-in-ones and NAS units
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Single-rank 1Rx8 unbuffered design for broad compatibility

4GB DDR4 2133MHz SODIMM for laptops

This single 4GB DDR4 module runs at 2133MHz with CL15 latency and 1.2V operation. It uses the standard 260-pin SO-DIMM form factor and is unbuffered non-ECC memory. The stick is designed for straightforward DIY installation in compatible notebooks.

Suits owners adding memory to a DDR4 laptop.

Systems that require ECC, registered modules or a different DDR generation will not accept this stick. Builders needing more than 4GB per slot or a higher speed grade should look at other modules. The 1Rx8 organisation is fixed and cannot be changed.

2133MHz DDR4 speed with CL15 timing

This JEDEC-standard frequency and latency combination determines whether the module matches the system's memory controller requirements. Verify the platform supports PC4-17000 before purchasing.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 76% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $7.00 per GB
Pricier than about 61% of the 1,886 comparable items (median $5.94 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 SO-DIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Other versions of this model

5 more in the same range

Questions about this item

Will the 260-pin DDR4 SODIMM fit my laptop's memory slot?

This module uses the standard 260-pin DDR4 SO-DIMM form factor. It fits any laptop, all-in-one, mini desktop, micro server, NAS or POS system that accepts DDR4 SO-DIMMs.

What is the correct way to seat the 260-pin module so the clips engage?

Line up the notch on the module with the key in the slot, insert the board at an angle, then press down evenly until the side clips snap into the notches on both edges.

Does the 4GB DDR4 2133MHz CL15 module need any firmware updates or battery replacement over time?

No. The module is unbuffered, non-ECC DDR4 with no heat spreader and no onboard firmware or battery. It requires no maintenance once installed.

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