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Eight green DDR4 LRDIMM sticks with gold contacts, no heat spreaders

OWC

OWC 256GB (8x32GB) DDR4 2400MHz CL17 ECC LRDIMM server RAM

SKU CH-QB2P-X1ZQH

Eight 32 GB DDR4 2400 MHz ECC load-reduced modules totalling 256 GB for server and workstation upgrades

  • Capacity256GB (8 x 32GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 256GB (8 x 32GB)

  • 256 GB total capacity across eight 32 GB modules
  • ECC load-reduced design protects data integrity in servers
  • DDR4 2400 MHz CL17 speed with 1.2 V operation
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133 MHz systems

Server Memory Kit for Enterprise Upgrades

This OWC kit provides 256GB of DDR4 2400MHz ECC Load Reduced memory across eight 32GB modules. It is built for servers, workstations and NAS systems that require registered LRDIMM technology and JEDEC-standard compliance.

Not for Desktop or Unbuffered Systems

The modules use 4Rx4 Load Reduced architecture and will not work in standard desktop computers or any platform that accepts only unbuffered UDIMMs. Buyers needing memory for consumer motherboards or laptops must choose a different product type.

288-Pin LRDIMM Form Factor Decides Fit

Each stick is a 288-pin DDR4 ECC Load Reduced DIMM running at 1.2V with CL17 latency. Verify that your server or workstation board explicitly supports LRDIMM population rules before purchasing.

Highlights

  • 256 GB total capacity across eight 32 GB modules
  • ECC load-reduced design protects data integrity in servers
  • DDR4 2400 MHz CL17 speed with 1.2 V operation
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133 MHz systems

Specifications

BrandOWC
Part Number2L4D44R4256K
Capacity256GB (8 x 32GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Other versions of this model

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Questions about this item

Does my server motherboard need 288-pin DDR4 ECC LRDIMM slots to install this 256GB kit?

Yes, the modules are 288-pin DDR4 ECC Load Reduced DIMMs that only fit server or workstation boards with LRDIMM slots.

Will these 2400MHz CL17 modules run if I keep my existing 2133MHz DDR4 ECC LRDIMMs installed?

The kit is backward compatible with 2133MHz speeds, so both sets can run together at the lower frequency.

How can I confirm the 8x32GB kit is detected as 256GB with ECC active after installation?

Check the BIOS memory summary or run a system tool such as dmidecode to verify 256GB total and ECC status enabled.

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