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Green circuit board with black memory chips, no heat spreader

OWC

OWC 8GB DDR5 4800 CL40 1Rx16 288-pin 1.1V Non-ECC UDIMM memory upgrade

SKU CH-18KR-PVYYZ

Adds 8 GB of DDR5-4800 CL40 memory to compatible Lenovo ThinkCentre M80s, M80t, M90s, M90t and neo 70t Gen 3 desktops

  • Total capacity8 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx16
  • 8 GB DDR5 4800 MHz CL40 boosts multitasking speed
  • 1 V low voltage cuts system power draw
  • 288-pin UDIMM fits Lenovo ThinkCentre M80s M80t M90s M90t neo 70t Gen 3
  • JEDEC and ROHS compliant for warranty-safe upgrade
  • Single 1Rx16 rank module installs in minutes

OWC 8GB DDR5 4800 UDIMM upgrade

This OWC module adds 8GB of DDR5 4800 memory to compatible Lenovo ThinkCentre desktops. It operates at 1.1V with CL40 latency and uses a single-rank 1Rx16 layout. The 288-pin unbuffered non-ECC design follows JEDEC standards for a warranty-safe installation.

Ideal for ThinkCentre M80s, M80t, M90s.

Builders needing ECC error correction, registered DIMMs, higher capacities per module or speeds above 4800 MT/s should look elsewhere. Systems outside the listed Lenovo models may not recognise the module or could require different specifications.

Confirm your ThinkCentre model

Verify the motherboard has a free 288-pin DDR5 slot and supports 1.1V non-ECC unbuffered memory. Check the current memory population to ensure the single-rank 1Rx16 module matches the platform requirements.

How it compares

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

Price $146.99
Cheaper than about 62% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $18.37 per GB
Pricier than about 64% 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 number4U8D51R608 GB
Total capacity8 GB
Product type288-Pin DDR5 Non-ECC UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx16
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkCentre M80s Gen 3
Lenovo ThinkCentre M80t Gen 3
Lenovo ThinkCentre M90s Gen 3
Lenovo ThinkCentre M90t Gen 3
Lenovo ThinkCentre neo 70t Gen 3

Other versions of this model

5 more in the same range

Questions about this item

Does my Lenovo ThinkCentre M80s Gen 3 need a free 288-pin UDIMM slot to accept this 8GB DDR5 4800 module?

Yes, the module uses a standard 288-pin UDIMM form factor, so an empty DDR5 DIMM slot on the motherboard is required for installation.

Can I keep my existing DDR5 4800 CL40 memory and add this 1Rx16 8GB stick without changing BIOS settings?

The module follows JEDEC DDR5 4800 CL40 1.1V specs, so it will run at the same speed and timings as matching factory memory without manual configuration.

How do I confirm the new 8GB module is recognised at 4800 MT/s after I install it?

Check the memory speed in Task Manager’s Performance tab or run CPU-Z; both will show the module operating at 4800 MT/s with CL40 latency when seated correctly.

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