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Green circuit board with gold edge connector and black memory chips

OWC

OWC 16GB DDR5 5200 CL42 1Rx8 262-pin 1.1V SODIMM for ThinkBook 14/16 G6 IRL

SKU CH-QRB4-WTHDA

A 16 GB DDR5 5200 CL42 SODIMM that upgrades Lenovo ThinkBook 14 G6 IRL and 16 G6 IRL laptops

  • Total capacity16 GB
  • Rated speedDDR5 5200 (PC5 41600)
  • CAS latencyCL42
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 16GB

  • 16 GB DDR5 5200 MHz boosts ThinkBook 14/16 G6 IRL responsiveness
  • CL42 latency and 1.1 V operation keep power draw low
  • Single-rank 1Rx8 262-pin SODIMM fits factory slot directly
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • OWC limited lifetime warranty with free tech support included

OWC 16GB DDR5 5200 SODIMM for ThinkBook G6 IRL

This OWC module provides 16GB of DDR5 5200 memory in a 262-pin SODIMM form factor. It runs at CL42 latency with a low 1.1V voltage and uses a 1Rx8 unbuffered non-ECC design. The part is built for Lenovo ThinkBook 14 G6 IRL and 16 G6 IRL notebooks. JEDEC compliance ensures a warranty-safe upgrade for these specific systems.

Who this suits and who should look elsewhere

This suits owners of the listed ThinkBook models who want a single 16GB stick to add capacity or replace a module. It is not for desktops or laptops that require 288-pin DIMMs, ECC registered memory, or a different DDR generation. Buyers needing a matched pair or a higher total capacity kit should look elsewhere.

The specification that decides fit

The 262-pin DDR5 SODIMM interface combined with the exact ThinkBook 14 G6 IRL and 16 G6 IRL compatibility listing is the deciding factor. Only systems accepting this pin count, voltage, and speed will support the module. Verify your model number matches exactly before ordering.

How it compares

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

Price $239.99
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 $15.00 per GB
Pricier than about 61% 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 number5S2D51R816 GB
Total capacity16 GB
Product type262-Pin DDR5 Non-ECC SODIMM
Performance
Rated speedDDR5 5200 (PC5 41600)
Memory
CAS latencyCL42
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkBook 14 G6 IRL
Lenovo ThinkBook 16 G6 IRL

Other versions of this model

5 more in the same range

Questions about this item

Will the 1Rx8 DDR5 module need any firmware updates or replacement down the line?

The module is a standard JEDEC DDR5 part with no heat spreader, so it runs at the rated 1.1 V and CL42 without firmware; replacement is only needed if you later want more capacity.

What limits sustained throughput first — the 5200 MT/s data rate or the CL42 latency?

At 5200 MT/s the CL42 timing yields a fixed access window, so latency is the first bottleneck during continuous workloads.

How much heat and power does the 1.1 V SODIMM produce when the ThinkBook runs all day?

Operating at 1.1 V without a spreader keeps power draw low and heat minimal, so the laptop’s existing cooling handles it without extra noise.

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