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Green printed circuit board with black memory chips in a 288-pin DDR5 stick

OWC

OWC 16GB DDR5 5600 CL46 1Rx8 288-pin 1.1V Non-ECC UDIMM for Lenovo Legion T5 26IRB8 T7 34IRZ8 memory upgrade

SKU CH-MKYK-2P3FC

A 16GB DDR5 5600 CL46 UDIMM upgrade for Lenovo Legion T5 26IRB8 and T7 34IRZ8 desktops

  • Capacity16GB
  • Type288-Pin DDR5 Non-ECC UDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS LatencyCL46
  • Voltage1.1V
  • ECCNo

Capacity 16GB

  • 16 GB DDR5 5600 CL46 boosts Lenovo Legion responsiveness
  • JEDEC-standard 1.1 V module ensures warranty-safe upgrade
  • Single-rank 1Rx8 design simplifies DIY installation
  • 288-pin UDIMM fits Legion T5 26IRB8 and T7 34IRZ8
  • OWC limited lifetime warranty backs every module

16GB DDR5 5600 module for Lenovo Legion T5 and T7

This 16GB DDR5 5600 CL46 UDIMM is built for Lenovo Legion T5 26IRB8 and T7 34IRZ8 desktops. It runs at 1.1V with a 1Rx8 layout and no heat spreader. The module replaces Lenovo part 4X71N41633 and meets JEDEC PC5-44800 specifications. Buyers who need ECC or registered memory should look elsewhere.

Tool-free DIMM slot install with one catch

Installation is a standard DIY task: power off, open the case, align the 288-pin key, and press until the latches click. The single-rank 1Rx8 design helps compatibility, but mixing capacities or speeds can prevent the system from posting at 5600. OWC advises using identical modules for best results.

Verify slot count and current population first

Check how many UDIMM slots your Legion chassis provides and whether any are already filled. The board must support non-ECC unbuffered DDR5 at 1.1V. If all slots are occupied you will need to remove an existing module. Confirm the exact model number T5 26IRB8 or T7 34IRZ8 before ordering.

Highlights

  • 16 GB DDR5 5600 CL46 boosts Lenovo Legion responsiveness
  • JEDEC-standard 1.1 V module ensures warranty-safe upgrade
  • Single-rank 1Rx8 design simplifies DIY installation
  • 288-pin UDIMM fits Legion T5 26IRB8 and T7 34IRZ8
  • OWC limited lifetime warranty backs every module

Specifications

BrandOWC
Part Number5U6D51R816GB
Capacity16GB
Type288-Pin DDR5 Non-ECC UDIMM
SpeedDDR5 5600 (PC5 44800)
CAS LatencyCL46
Voltage1.1V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemLenovo Legion T5 26IRB8
Lenovo Legion T7 34IRZ8

Other versions of this model

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Questions about this item

How can I verify the module runs at DDR5 5600 CL46 after installing it in my Legion T5 26IRB8?

Enter the BIOS or use a tool such as CPU-Z; the memory tab should show 5600 MT/s and CAS latency 46 for the installed DIMM.

What is included in the package and do I need any extra parts for the upgrade?

The box contains one 16 GB 288-pin DDR5 UDIMM; no additional cables, brackets or heat spreaders are required.

Which capacity should I choose if I want to match the factory Lenovo part 4X71N41633?

This 16 GB module is the direct replacement for Lenovo part 4X71N41633, so select the 16 GB version.

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