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Two green DDR5 RDIMM modules, bare circuit boards with gold contacts, no heat spreaders

OWC

OWC 32GB (2x16GB) DDR5 4800 CL40 ECC Registered RDIMM 4R8D51R8032P

SKU CH-Z89X-96PK0

A 32 GB dual-channel DDR5 ECC registered RDIMM kit running at 4800 MT/s CL40 for Lenovo ThinkStation P7 and PX workstations

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank1Rx8

Capacity 32GB (2 x 16GB)

  • ECC registered design protects data integrity in workstations
  • DDR5 4800 speed with CL40 latency boosts throughput
  • 32 GB kit of two 16 GB modules expands capacity
  • 1 V operation reduces power draw per module
  • Validated for Lenovo ThinkStation P7 and PX systems

32 GB ECC Registered DDR5 Kit

This 32 GB kit contains two 16 GB DDR5 4800 CL40 registered DIMMs built for Lenovo ThinkStation P7 and PX workstations. It operates at 1.1 V and provides error-correcting code protection for data integrity in professional workloads.

Verify Registered DIMM Support

Confirm your workstation requires registered ECC memory and that all populated slots use the same registered type. Mixing registered modules with unbuffered or load-reduced DIMMs will prevent the system from booting.

Sustained Workload Stability

Registered buffering reduces electrical load on the memory controller during continuous operation, helping maintain consistent throughput in long-running compute tasks. The JEDEC-standard timings and voltage keep thermals predictable without a heat spreader.

How it compares

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

Price $846.99
Pricier than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $26.47 per GB
Pricier than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D51R8032P
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkStation P7
Lenovo ThinkStation PX

Other versions of this model

5 more in the same range

Questions about this item

What comes in the 32GB kit and do I need anything else to install it?

The kit contains two 16GB DDR5 4800 CL40 ECC registered RDIMM modules; no extra parts are required for installation in a compatible ThinkStation.

Should I choose this 32GB 4800 CL40 kit or a different capacity for my ThinkStation P7?

This 32GB (2x16GB) kit matches the DDR5 4800 CL40 1Rx8 registered ECC specification validated for ThinkStation P7 and PX workstations.

What does the 4800 CL40 rating mean for real workloads on a ThinkStation PX?

The modules run at 4800 MT/s with CAS latency 40, delivering JEDEC-standard DDR5 bandwidth and error correction for stable workstation and server workloads.

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