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Green circuit board with black memory chips and gold edge connector

OWC

OWC 4GB DDR4 2133MHz CL15 1.2V SODIMM memory upgrade

SKU CH-C74Z-R1RY7

4GB DDR4 2133MHz CL15 SODIMM for HP Pavilion 27-a002la, 27-a003la, 27-a010, 27-a010t and 27-a021 all-in-one desktops

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boosts system responsiveness with 4GB DDR4 2133MHz CL15 memory
  • Low 1.2V operation reduces power draw and heat
  • 260-pin SODIMM fits listed HP Pavilion 27 all-in-one models
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Single-rank 1Rx8 unbuffered design ensures broad compatibility

Targeted DDR4 SODIMM upgrade

This 4 GB DDR4 module is built for HP Pavilion 27-a002la, 27-a003la, 27-a010, 27-a010t and 27-a021 all-in-one desktops. It runs at 2133 MHz with CL15 latency and 1.2 V operation. The 260-pin unbuffered non-ECC design matches the factory specification for these systems.

Straightforward slot installation

The SODIMM fits the standard 260-pin socket found in the compatible Pavilion models. No heat spreader is fitted, so clearance inside the slim chassis is not affected. The module is keyed to prevent incorrect insertion, and the single-rank 1Rx8 organisation avoids density conflicts that can cause boot failures on these platforms.

DDR4 2133 platform ceiling

The memory operates at the JEDEC PC4-17000 standard, so speed is fixed at 2133 MHz with no XMP or manual overclocking headroom. Capacity is limited to 4 GB per module, and the platform chipset restricts total system memory to the maximum the manufacturer defined. ECC and registered modules are not supported by these systems.

How it compares

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

Price $26.99
Cheaper than about 87% 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 $6.75 per GB
Cheaper than about 59% 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 systemsHP Pavilion 27-a002la
HP Pavilion 27-a003la
HP Pavilion 27-a010
HP Pavilion 27-a010t
HP Pavilion 27-a021

Other versions of this model

5 more in the same range

Questions about this item

How can I verify the OWC 4GB DDR4 2133MHz module is working after installation?

Power on the HP Pavilion and open Task Manager or System Information; the installed memory should show 4GB at 2133 MHz with CL15 timings.

What comes in the box with the OWC 2S1D41R804GB SODIMM and what must I purchase separately?

The box contains the single 260-pin DDR4 SODIMM module; no tools, screws or additional cables are included and none are required for installation.

Which OWC DDR4 SODIMM version matches my HP Pavilion 27-a010t from the listed compatibilities?

The 4GB PC4-17000 CL15 1.2V 260-pin Non-ECC SODIMM (part 2S1D41R804GB) is the exact module validated for the 27-a010t and the other listed Pavilion models.

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