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Green circuit board with gold contacts and black memory chips

OWC

OWC 4S8D51R816GB 16GB DDR5 4800 CL40 1Rx8 262-pin 1.1V SODIMM memory upgrade

SKU CH-14HT-VPNPA

A 16 GB DDR5 SODIMM running at 4800 MT/s with CL40 timing and 1.1 V operation for select Lenovo ThinkPad workstations

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 16 GB DDR5 4800 CL40 boosts multitasking speed
  • 1 V low voltage extends battery life
  • 262-pin SODIMM fits listed ThinkPad models
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • Single 1Rx8 rank module simplifies DIY installation

Compatible Lenovo ThinkPad DDR5 SODIMM

This OWC module is a 16GB DDR5 4800 CL40 262-pin SODIMM built for specific Lenovo ThinkPad mobile workstations. It delivers a warranty-safe, JEDEC-standard memory upgrade for the listed systems.

Suits owners of the named ThinkPad models.

The part is validated for ThinkPad P1 Gen 5, P15v Gen 3, P16 Gen 1, T15p Gen 3 and X1 Extreme Gen 5. Buyers with different laptops, desktops or servers should look elsewhere because the pin-out, voltage and firmware timing are matched to these platforms only.

Single 16GB 1Rx8 module at 1.1V

The kit provides one 16GB rank-8 unbuffered SODIMM operating at 1.1V with CL40 latency. Systems that require a different capacity per slot, a dual-rank layout or a non-DDR5 memory type will not accept this module.

How it compares

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

Price $226.99
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 $14.19 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4S8D51R816 GB
Total capacity16 GB
Product type262-Pin DDR5 Non-ECC SODIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkPad P1 Gen 5
Lenovo ThinkPad P15v Gen 3
Lenovo ThinkPad P16 Gen 1
Lenovo ThinkPad T15p Gen 3
Lenovo ThinkPad X1 Extreme Gen 5

Other versions of this model

5 more in the same range

Questions about this item

Does this DDR5 4800 CL40 module run at its rated speed in the listed ThinkPad models?

Yes, the module follows the JEDEC DDR5 4800 PC5-38400 CL40 specification and is tested for the listed ThinkPad models.

What physical slot does this 262-pin SODIMM need and will it fit the Lenovo ThinkPad P1 Gen 5?

It fits a standard 262-pin DDR5 SODIMM slot and is validated for the ThinkPad P1 Gen 5, P15v Gen 3, P16 Gen 1, T15p Gen 3 and X1 Extreme Gen 5.

What is the correct way to seat this 1.1 V unbuffered SODIMM and what step do people often miss?

Align the notch with the slot key, insert at an angle, then press down firmly until both side clips click — the click confirms it is fully seated.

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