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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 16GB DDR5 4800 PC5-38400 CL40 1Rx8 288-pin 1.1V ECC Registered RDIMM memory upgrade

SKU CH-52NR-E5PP6

Adds 16 GB of DDR5-4800 ECC registered memory to HP ProLiant Gen11 servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank1Rx8

Capacity 16GB

  • ECC registered design prevents data corruption in critical workloads
  • 16 GB DDR5 4800 module expands server memory capacity
  • 1 V low-voltage operation reduces power draw per DIMM
  • Single-rank 1Rx8 layout optimises signal integrity at speed
  • Validated for HP ProLiant DL325 DL345 DL360 DL365 DL380 Gen11

Server memory upgrade

This 16 GB DDR5 registered DIMM adds ECC-protected capacity to HP ProLiant Gen11 servers. It targets administrators who need to expand memory in DL325, DL345, DL360, DL365 or DL380 systems.

Registered ECC build

The module uses a 288-pin DDR5 form factor with a registered buffer and on-die ECC at 1.1 V. A single rank 1Rx8 organisation keeps electrical loading low for dense server configurations. No heat spreader is fitted, so airflow in the chassis handles cooling.

Compatibility check

Verify that the server model matches the listed ProLiant Gen11 platforms before ordering. This registered ECC RDIMM cannot be mixed with unbuffered or load-reduced DIMMs in the same system. It replaces HP part numbers P43322-B21, P50309-B21, P58354-H21 and P62601-B21.

How it compares

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

Price $385.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $24.12 per GB
Pricier than about 69% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D51R816 GB
Total capacity16 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 systemsHP ProLiant DL325 Gen11
HP ProLiant DL345 Gen11
HP ProLiant DL360 Gen11
HP ProLiant DL365 Gen11
HP ProLiant DL380 Gen11

Other versions of this model

5 more in the same range

Questions about this item

What DDR5 speed and CAS latency does this OWC 16GB module run at?

The module operates at DDR5 4800 (PC5-38400) with a CAS latency of CL40 at 1.1V.

Does this 288-pin ECC RDIMM fit the DIMM slots in my HP ProLiant DL380 Gen11?

Yes, the 288-pin registered DIMM is designed for the DL325, DL345, DL360, DL365 and DL380 Gen11 servers.

What is the correct way to seat this registered DIMM and what step is often missed?

Align the notch with the slot key, press straight down until both side latches click, and verify the module height clears the CPU cooler.

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