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Green rectangular circuit board with gold edge contacts and black memory chips on both sides

OWC

OWC 16GB DDR5 5600 CL46 262-pin 1.1V Non-ECC SODIMM memory upgrade

SKU CH-NSEA-H78QV

A 16 GB DDR5 5600 SODIMM upgrade for Lenovo ThinkPad E14 Gen 6, E16 Gen 2, P1 Gen 6 and P16v Gen 1

  • Total capacity16 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 16GB

  • 16 GB DDR5 5600 CL46 boosts multitasking speed
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 1 V low-voltage design reduces power draw
  • Single 1Rx8 262-pin SODIMM fits four ThinkPad models
  • Limited lifetime warranty with free tech support included

Targeted Lenovo DDR5 upgrade

This 16GB DDR5 SODIMM is built for specific Lenovo ThinkPad models including the E14 Gen 6, E16 Gen 2, P1 Gen 6 and P16v Gen 1. It targets users who need a direct, warranty-safe memory increase for these exact laptops. The module meets JEDEC and RoHS standards for reliable compatibility.

Replaces factory 8GB or 16GB sticks

The upgrade replaces the original Lenovo part 4X71M23187 when the existing capacity limits multitasking or larger workloads. Moving to this 16GB CL46 module is worth it when the system ships with less memory or when a second slot is free and the project demands more headroom. It keeps the stock 5600MHz speed and 1.1V voltage.

Fits 262-pin SODIMM slots only

Installation requires an available SODIMM slot in the compatible ThinkPad chassis and no heat spreader clearance issues. The unbuffered, non-ECC 1Rx8 design works with the platform's standard memory controller. Builders needing ECC support, registered DIMMs or a different pin count cannot use this module.

How it compares

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

Price $223.99
Cheaper than about 57% 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 $14.00 per GB
Pricier than about 60% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5S6D51R816 GB
Total capacity16 GB
Product type262-Pin DDR5 Non-ECC SODIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkPad E14 Gen 6
Lenovo ThinkPad E16 Gen 2
Lenovo ThinkPad P1 Gen 6
Lenovo ThinkPad P16v Gen 1

Other versions of this model

5 more in the same range

Questions about this item

Will the 262-pin DDR5 SODIMM fit the memory slot in my Lenovo ThinkPad P1 Gen 6?

Yes, the 262-pin DDR5 SODIMM matches the slot used by the ThinkPad P1 Gen 6 and the other listed models.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, press the module in firmly until it is fully seated, then push down until both side clips snap into place.

Does this 1.1 V non-ECC module need any firmware updates or periodic replacement?

No firmware update is required; the JEDEC-standard module runs at 1.1 V and is designed to last the useful life of the laptop.

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