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Green rectangular circuit board with gold edge contacts and black memory chips on both sides

OWC

OWC 128GB DDR4 2933 CL21 4Rx4 LRDIMM 2L9D44R4128G memory upgrade

SKU CH-25VR-JFTTZ

A 128 GB DDR4 ECC load-reduced DIMM running at 2933 MHz with CL21 latency for HP ProLiant Gen10 servers

  • Capacity128GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB

  • 128GB capacity lets you run larger workloads on a single module
  • DDR4 2933 speed with CL21 latency keeps data flowing to the CPU
  • ECC load-reduced design maintains signal integrity at high density
  • 2V operation reduces power draw across the memory subsystem
  • Compatible with HP ProLiant Gen10 servers for direct replacement

Server memory upgrade

This 128GB DDR4 LRDIMM module is built for HP ProLiant BL460c Gen10, DL325 Gen10, DL360 Gen10, DL380 Gen10 and DL385 Gen10 servers. It delivers ECC load-reduced operation at 2933MHz with CL21 latency for workstation and server workloads. The single-module design adds high capacity in one slot.

Compatibility check

Verify your system requires DDR4 288-pin ECC load-reduced DIMMs and supports 4Rx4 rank configuration. This module will not work in standard desktop computers and cannot be mixed with unbuffered or registered ECC memory. Confirm the server model matches the listed ProLiant series before ordering.

Build and connectors

The module uses a standard 288-pin DDR4 interface at 1.2V with no heat spreader. Gold-edge contacts ensure reliable seating in server DIMM slots. Backward compatibility with 2133MHz, 2400MHz and 2666MHz speeds allows deployment in mixed-speed configurations. Replaces multiple HP part numbers including P19047 and P11040 series.

Highlights

  • 128GB capacity lets you run larger workloads on a single module
  • DDR4 2933 speed with CL21 latency keeps data flowing to the CPU
  • ECC load-reduced design maintains signal integrity at high density
  • 2V operation reduces power draw across the memory subsystem
  • Compatible with HP ProLiant Gen10 servers for direct replacement

Specifications

BrandOWC
Part Number2L9D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP ProLiant BL460c Gen10
HP ProLiant DL325 Gen10
HP ProLiant DL360 Gen10
HP ProLiant DL380 Gen10
HP ProLiant DL385 Gen10

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Questions about this item

What is included with the 128GB DDR4 2933 CL21 LRDIMM and what must be purchased separately?

The package contains one 128GB 288-pin DDR4 2933 PC4-23400 CL21 4Rx4 1.2V ECC Load Reduced DIMM. No cables, brackets or additional modules are included; buy extra DIMMs separately to fill more slots.

Which capacity or version of this OWC LRDIMM should I choose for my HP ProLiant Gen10 server?

This is a single 128GB module rated DDR4 2933 CL21 4Rx4. Select it when your HP ProLiant BL460c, DL325, DL360, DL380 or DL385 Gen10 requires a 128GB ECC Load Reduced DIMM at that speed and rank.

What does the PC4-23400 2933MHz rating mean once the module is installed in a compatible HP ProLiant Gen10?

The module will run at up to 2933 MT/s with CL21 latency at 1.2V. It also operates at 2133, 2400 or 2666 MT/s if the system memory bus is set to a lower speed.

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