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Four green DDR4 288-pin LRDIMM modules without heat spreaders

OWC

OWC 512GB (4x128GB) DDR4 2933 CL21 4Rx4 288-pin 1.2V ECC LRDIMM memory upgrade

SKU CH-K6JM-8KRXW

512 GB DDR4 ECC LRDIMM kit of four 128 GB modules at 2933 MHz CL21 for Supermicro X11SPA-TF servers

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

Capacity 512GB (4 x 128GB)

Doorgestreepte varianten bestaan wel, maar zijn hier niet op voorraad.

  • 512 GB total capacity from four 128 GB modules
  • ECC load-reduced design for server and workstation stability
  • DDR4 2933 speed with backward compatibility to 2133, 2400, 2666 MHz
  • Low 1.2 V operation reduces power draw and heat
  • Validated for Supermicro X11SPA-TF motherboard

Purpose-built server memory

This kit delivers 512GB across four 128GB DDR4 2933 ECC LRDIMM modules. It targets administrators upgrading Supermicro X11SPA-TF platforms or building new workstations and NAS systems that require registered load-reduced memory.

Mechanical and electrical traits

Each 288-pin module operates at 1.2V with CL21 latency and a 4Rx4 organisation. The load-reduced design reduces electrical load on the memory bus, allowing higher densities without a heat spreader. Modules are JEDEC and ROHS compliant.

Upgrade path and fit

The kit replaces lower-capacity DDR4 LRDIMM sets or populates empty slots on compatible Supermicro boards. It is not suitable for desktop PCs, unbuffered memory configurations, or standard registered ECC DIMMs. Backward compatible with 2133, 2400 and 2666MHz bus speeds.

Pluspunten

  • 512 GB total capacity from four 128 GB modules
  • ECC load-reduced design for server and workstation stability
  • DDR4 2933 speed with backward compatibility to 2133, 2400, 2666 MHz
  • Low 1.2 V operation reduces power draw and heat
  • Validated for Supermicro X11SPA-TF motherboard

Specificaties

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
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11SPA-TF

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Vragen over dit artikel

Does the DDR4 2933 PC4-23400 interface cap the memory speed at 2933 MHz even if the board supports higher rates?

The kit runs at DDR4 2933 (PC4-23400) and will down-clock to 2666 MHz, 2400 MHz or 2133 MHz if the system requires a lower speed.

What physical slot and clearance does the 288-pin ECC LRDIMM need on the Supermicro X11SPA-TF?

Each 128 GB module is a standard 288-pin DDR4 LRDIMM with no heat spreader, so it fits the X11SPA-TF DIMM slots without extra height clearance.

How are the four 128 GB LRDIMMs installed and which step is commonly missed?

Populate all four DIMM slots on the X11SPA-TF; the step often missed is verifying the BIOS sees all 512 GB at 2933 MHz and that no unbuffered or registered DIMMs remain mixed in.

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