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Four green 288-pin DDR4 LRDIMM sticks, no heat spreaders

OWC

OWC 512GB (4x128GB) DDR4 2933MHz CL21 4Rx4 ECC Load Reduced LRDIMM 1.2V 288-pin Server RAM

SKU CH-W5ZS-QAA84

Four 128GB DDR4 2933MHz ECC load-reduced modules totalling 512GB for server and workstation upgrades

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

  • Massive 512 GB capacity from four 128 GB modules
  • ECC load-reduced design protects data integrity in servers
  • JEDEC-compliant DDR4 2933 MHz CL21 at 1.2 V
  • Backward compatible with 2133, 2400 and 2666 MHz systems
  • 288-pin LRDIMM form factor fits server and workstation slots

Server memory upgrade

This 512GB kit contains four 128GB DDR4 2933MHz ECC Load Reduced DIMMs built for servers, workstations and NAS systems. The modules run at 1.2V with CL21 latency and a 4Rx4 rank configuration on 288-pin connectors. They are fully JEDEC compliant and tested to meet OEM specifications.

Suits high-capacity server builds

This memory is designed for platforms that require registered ECC LRDIMM modules and will not work in standard desktop computers. It cannot be mixed with unbuffered memory, so buyers needing consumer DIMMs should look elsewhere. Backward compatibility covers 2133MHz, 2400MHz and 2666MHz speeds.

Handles large memory workloads

The 512GB total capacity provides substantial headroom for virtualization, database caching and multi-user workloads. Four populated slots leave no room for further expansion on typical dual-channel boards, so systems requiring more memory would need a platform with additional channels or higher-density modules.

Privalumai

  • Massive 512 GB capacity from four 128 GB modules
  • ECC load-reduced design protects data integrity in servers
  • JEDEC-compliant DDR4 2933 MHz CL21 at 1.2 V
  • Backward compatible with 2133, 2400 and 2666 MHz systems
  • 288-pin LRDIMM form factor fits server and workstation slots

Specifikacijos

BrandOWC
Part Number2L9D44R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Does my server need 288-pin DDR4 LRDIMM slots to use this 512GB kit?

Yes, this kit uses 288-pin DDR4 ECC Load Reduced DIMMs that require server or workstation boards with LRDIMM support; standard desktop motherboards cannot accept them.

Will these 2933MHz modules run correctly if my system currently uses 2400MHz memory?

The modules are backward compatible with 2133MHz, 2400MHz and 2666MHz speeds and will operate at the highest common frequency supported by the platform.

How can I confirm the 4Rx4 ECC LRDIMMs are recognised at 2933MHz after installation?

Check the BIOS memory information or run a system utility such as dmidecode to verify each 128GB module shows 2933MHz, CL21, 4Rx4 and ECC Load Reduced status.

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