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Green circuit board with black memory chips and gold edge contacts

OWC

OWC 16GB DDR5 5600 CL46 1Rx8 262-pin 1.1V SODIMM memory upgrade for Lenovo Legion 9 16IRX9

SKU CH-782W-GTT1M

16GB DDR5 5600 CL46 SODIMM upgrades the Lenovo Legion 9 16IRX9 with JEDEC-standard memory

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

Capacity 16GB

  • 16 GB capacity lets you run more apps simultaneously
  • DDR5 5600 speed with CL46 latency delivers responsive performance
  • 1 V operation reduces power draw and heat
  • 262-pin SODIMM form factor fits the Lenovo Legion 9 16IRX9 slot
  • JEDEC and RoHS compliant for a warranty-safe upgrade

Targeted Legion 9 upgrade

This 16GB DDR5 SODIMM is built specifically for the Lenovo Legion 9 16IRX9 laptop. It delivers a single-module capacity increase for users who need more headroom in that exact platform. The JEDEC-standard specification ensures the module meets the system’s native memory requirements without additional configuration.

Standard SODIMM fit and voltage

The 262-pin unbuffered non-ECC stick installs into the laptop’s existing SO-DIMM slot using the familiar latch mechanism. Operation at 1.1V matches the DDR5 baseline, so the upgrade draws no more power than the factory module. No heat spreader is fitted, keeping the profile thin for tight chassis clearances.

Replaces Lenovo part 4X71M23187

This module directly substitutes the original equipment memory identified by that part number. The jump is worthwhile when the system ships with a smaller capacity or when a second slot is free and the workload benefits from 16GB of DDR5 5600 CL46 bandwidth. Buyers needing ECC, registered buffers or speeds beyond the JEDEC 5600 baseline should look elsewhere.

How it compares

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

Price $210.99
Cheaper than about 58% 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 $13.19 per GB
Pricier than about 59% 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 Legion 9 16IRX9

Other versions of this model

5 more in the same range

Questions about this item

Does the DDR5 5600 PC5-44800 interface cap the module at 5600 MT/s in the Lenovo Legion 9 16IRX9?

Yes, the module is rated for DDR5 5600 (PC5-44800) and will run at that speed in the Legion 9 16IRX9.

What physical slot and form factor does the 262-pin SODIMM need to fit the Legion 9 16IRX9?

It requires a standard 262-pin DDR5 SODIMM slot, which the Legion 9 16IRX9 provides.

How is the single 16GB 1Rx8 module installed, and which step do people often miss?

Power off, open the case, align the notch with the key in the 262-pin slot, press firmly until the side clips click — many forget to seat both clips fully.

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