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Two green DDR4 LRDIMM modules with gold contacts and black chips

OWC

OWC 256GB (2x128GB) DDR4 2933 CL21 8Rx4 ECC LRDIMM memory upgrade HP ProLiant XL270d Gen10

SKU CH-TXKH-DMTPV

256 GB kit of two 128 GB DDR4 2933 CL21 ECC load-reduced LRDIMMs for HP ProLiant XL270d Gen10

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank8Rx4

Capacity 256GB (2 x 128GB)

  • 256 GB capacity across two 128 GB modules for high-density server workloads
  • DDR4 2933 MHz speed with CL21 latency delivers responsive data throughput
  • ECC load-reduced design detects and corrects errors to protect critical data
  • 2 V operation reduces power draw while maintaining enterprise stability
  • Compatible with HP ProLiant XL270d Gen10 and backward compatible with 2133, 2400, 2666 MHz systems

Server memory upgrade kit

This 256GB kit contains two 128GB DDR4 2933 CL21 ECC LRDIMM modules built for the HP ProLiant XL270d Gen10. It targets administrators who need maximum registered capacity in that specific platform.

256GB load-reduced capacity

The dual-rank 8Rx4 design delivers 256GB across two 288-pin slots at 1.2V. Backward compatibility covers 2133, 2400 and 2666MHz speeds, but the modules will not work in standard desktops or alongside unbuffered or registered ECC memory.

Thermals and power in use

Operating at 1.2V without heat spreaders, the LRDIMMs rely on server chassis airflow for cooling. Load-reduced buffering reduces electrical load on the memory controller, keeping power draw steady during sustained workloads.

How it compares

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

Price $1,303.99
Pricier than about 63% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.09 per GB
Cheaper than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2L9D48R4256P
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeLoad Reduced
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP ProLiant XL270d Gen10

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR4 2933 LRDIMM modules run alongside my existing 2666 MHz ECC memory in the HP ProLiant XL270d Gen10?

The kit is backward compatible with 2133, 2400 and 2666 MHz speeds, but LRDIMM modules cannot be mixed with unbuffered or standard registered ECC DIMMs.

How do I confirm the 2 x 128 GB kit is detected at 2933 MT/s with CL21 timing after installation?

Check the system BIOS or iLO interface; it should report 256 GB total, DDR4 2933 (PC4-23400) CL21 1.2 V ECC Load Reduced operation.

Does the OWC 256 GB upgrade kit include only the two 128 GB LRDIMM modules, or are any tools or cables also supplied?

The package contains the two 128 GB DDR4 2933 CL21 8Rx4 288-pin 1.2 V ECC Load Reduced DIMMs; no tools, cables or additional hardware are included.

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