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Green circuit board with gold edge contacts and black memory chips

OWC

OWC 16GB DDR5 5600 CL46 262-pin 1.1V Non-ECC SODIMM memory upgrade for Lenovo ThinkBook 14 2-in-1 G4 IML

SKU CH-ZS65-728X8

16 GB DDR5 5600 SODIMM module upgrades a Lenovo ThinkBook 14 2-in-1 G4 IML

  • Capacity16GB
  • Type262-Pin DDR5 Non-ECC SODIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS LatencyCL46
  • Voltage1.1V
  • ECCNo

Capacity 16GB

  • 16 GB DDR5 module adds responsive multitasking capacity
  • 5600 MHz CL46 speed keeps data flowing to the CPU
  • 1 V operation reduces power draw and heat
  • 262-pin SODIMM fits the ThinkBook 14 2-in-1 G4 IML slot
  • JEDEC and RoHS compliant for a warranty-safe upgrade

System-specific DDR5 upgrade

This single 16GB DDR5 5600 CL46 SODIMM is built for the Lenovo ThinkBook 14 2-in-1 G4 IML. It meets JEDEC and RoHS standards at 1.1V and is designed as a warranty-safe, direct replacement for the original Lenovo 4X71M23187 module.

Ideal for ThinkBook 14 2-in-1 G4 IML owners

The module fits only systems that accept 262-pin DDR5 SODIMMs at 5600 MT/s with CL46 timing. Laptops requiring ECC, registered memory, a different pin count, or a lower DDR generation will not work with this part.

262-pin DDR5 SODIMM form factor

The 262-pin DDR5 SO-DIMM layout is the decisive physical specification; it must match the slot in the target ThinkBook. Any other pin count or memory type will not install.

Highlights

  • 16 GB DDR5 module adds responsive multitasking capacity
  • 5600 MHz CL46 speed keeps data flowing to the CPU
  • 1 V operation reduces power draw and heat
  • 262-pin SODIMM fits the ThinkBook 14 2-in-1 G4 IML slot
  • JEDEC and RoHS compliant for a warranty-safe upgrade

Specifications

BrandOWC
Part Number5S6D51R816GB
Capacity16GB
Type262-Pin DDR5 Non-ECC SODIMM
SpeedDDR5 5600 (PC5 44800)
CAS LatencyCL46
Voltage1.1V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkBook 14 2-in-1 G4 IML

Other versions of this model

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Questions about this item

My ThinkBook 14 2-in-1 G4 IML currently has soldered memory only — does this 262-pin SODIMM require a free slot to work?

Yes, the module is a 262-pin DDR5 SODIMM and needs an empty SO-DIMM socket in the laptop; if the system has only soldered memory with no expansion slot it cannot be installed.

I plan to keep the original 8 GB DDR5 4800 stick — will this 16 GB DDR5 5600 CL46 module run at the slower speed automatically?

The module is rated DDR5 5600 CL46 at 1.1 V; when mixed with a 4800 MT/s stick the memory controller will down-clock both modules to the lowest common speed and latency.

After installing the 16 GB stick how can I confirm it is running at DDR5 5600 CL46?

Open Task Manager → Performance → Memory or run CPU-Z; the Speed field should read 5600 MT/s and the timings should show CL46 when the system is under load.

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