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Eight green DDR4 LRDIMM modules in anti-static packaging

OWC

OWC 1TB (8x128GB) DDR4 3200 CL22 4Rx4 288-pin 1.2V ECC LRDIMM memory upgrade kit

SKU CH-7RT9-27A5R

Eight 128 GB DDR4-3200 ECC load-reduced DIMMs totalling 1 TB for HP ProLiant DL385 Gen10 Plus, DX360 Gen10 Plus and DX385 Gen10 Plus servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 1TB (8 x 128GB)

  • 1TB capacity across eight 128GB modules for dense server memory
  • DDR4 3200 CL22 at 1.2V for high-speed ECC performance
  • Load-reduced 4Rx4 design reduces electrical load on the memory bus
  • Compatible with HP ProLiant DL385 Gen10 Plus, v2, DX360 and DX385
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Server ECC LRDIMM kit

This 1 TB kit contains eight 128 GB DDR4 3200 CL22 ECC load-reduced DIMMs built for HP ProLiant DL385 Gen10 Plus, DL385 Gen10 Plus v2, DX360 Gen10 Plus and DX385 Gen10 Plus servers. It is designed for workloads that need large memory capacity with error correction.

Load-reduced DDR4 limits

Load-reduced modules reduce electrical load on the memory bus so more ranks can be populated per channel, but they cannot be mixed with unbuffered or standard registered ECC DIMMs. The kit runs at 1.2 V and supports backward-compatible speeds of 2133, 2400, 2666 and 2933 MT/s when the platform requires it.

Pre-installation checks

Verify that every memory slot you plan to fill accepts 4Rx4 288-pin LRDIMMs and that the server BIOS is current enough to recognise 128 GB modules. Do not install these in standard desktop or workstation boards that only support unbuffered or registered memory.

How it compares

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

Price $6,140.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $6.14 per GB
Cheaper than about 64% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3L2D44R41TBK
Total capacity1 TB (8 × 128 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP ProLiant DL385 Gen10 Plus
HP ProLiant DL385 Gen10 Plus v2
HP ProLiant DX360 Gen10 Plus
HP ProLiant DX385 Gen10 Plus

Other versions of this model

5 more in the same range

Questions about this item

Should I buy the 1TB kit or can I start with fewer modules?

The kit contains eight 128GB modules for a total of 1TB. HP ProLiant DL385 Gen10 Plus, DL385 Gen10 Plus v2, DX360 Gen10 Plus and DX385 Gen10 Plus servers require matching LRDIMM sets, so using the full kit ensures correct rank and channel population.

What does DDR4 3200 CL22 mean for my server workloads?

The modules run at 3200 MT/s with a CAS latency of 22 cycles. In the supported ProLiant servers this translates to PC4-25600 bandwidth per module, reducing latency for virtualization, database and analytics workloads compared to slower DDR4 speeds.

Will the LRDIMM interface work with my existing registered DIMMs?

No. Load-Reduced DIMMs use a different electrical buffering scheme than registered DIMMs and cannot be mixed in the same system. The kit is validated only for the listed HP ProLiant models and replaces HP part numbers P06037-B21, P06037-H21, P06037-K21, P43171-B21, P07652-B21, P07652-H21 and P25206-B21.

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