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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

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

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.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $1,592.99
Pricier than about 84% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $6.22 per GB
Cheaper than about 61% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2L4D44R4256K
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

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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