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Four green 288-pin DDR4 RDIMM modules in static bag

OWC

OWC 512GB (4x128GB) DDR4 2400MHz CL17 4Rx4 ECC Registered RDIMM 1.2V 288-pin Server RAM

SKU CH-FYDM-5Q59J

Four 128GB DDR4 2400MHz CL17 ECC registered RDIMMs totalling 512GB for servers and workstations

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

Rodyti 2 daugiau konfigūracijų

Rank 4Rx4

  • ECC registered design protects data integrity in servers
  • 512GB total capacity across four 128GB modules
  • DDR4 2400MHz speed with CL17 latency
  • 2V operation reduces power draw
  • JEDEC and RoHS compliant for broad compatibility

Server memory kit for workstations and NAS

This kit supplies 512 GB across four 128 GB DDR4 2400 MHz modules built to JEDEC PC4-19200 CL17 specifications. ECC registered operation detects and corrects single-bit errors for data integrity in servers, workstations and NAS systems. The 1.2 V modules fit standard 288-pin RDIMM slots. Desktop motherboards that require unbuffered memory cannot use this kit.

Thermals and power in daily operation

Registered buffers and on-die ECC add minimal latency while keeping each module at the standard 1.2 V DDR4 voltage. Passive operation relies on system airflow; no heat spreaders are fitted, so adequate case ventilation maintains stable temperatures under sustained loads. Power draw scales with the four-module population and remains within the DDR4 2400 MHz JEDEC envelope for registered DIMMs.

Build quality and slot implications

Each module uses a 4Rx4 organisation on a 288-pin green PCB without a heat spreader, exposing the DRAM for direct airflow contact. The four-stick kit fills four slots in a dual-channel topology, so the motherboard must provide at least four registered DIMM sockets. Mixing with unbuffered or non-ECC modules is not supported by the registered design.

Privalumai

  • ECC registered design protects data integrity in servers
  • 512GB total capacity across four 128GB modules
  • DDR4 2400MHz speed with CL17 latency
  • 2V operation reduces power draw
  • JEDEC and RoHS compliant for broad compatibility

Specifikacijos

BrandOWC
Part Number2R4D44R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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How do I install the four 128 GB DDR4 288-pin RDIMM modules in the correct order?

Power down the server, open the chassis, and insert each 288-pin module into the slots specified by the motherboard manual for quad-channel population; the notch on each stick aligns with the key in the slot so it only seats one way. Press firmly until the retention clips click, then close the chassis and power on.

What maintenance or replacement will the 4Rx4 ECC registered RDIMM kit need over time?

The modules themselves have no moving parts and require no scheduled maintenance; if a single 128 GB stick fails, replace only that module with another DDR4 2400 CL17 4Rx4 registered DIMM of the same voltage and capacity to keep ECC and rank matching intact.

What limit appears first when the 512 GB kit runs at 2400 MHz under sustained load?

The DDR4 2400 MT/s data rate and CL17 latency set the bandwidth ceiling; sustained workloads that exceed the memory controller's throughput or the platform's thermal envelope will throttle before the modules themselves reach a hard error limit.

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