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

OWC

OWC 512GB (4x128GB) DDR4 2400MHz CL17 4Rx4 ECC LRDIMM server RAM

SKU CH-M0FF-TM5DX

A 512 GB quad-channel kit of four 128 GB DDR4 2400 MHz CL17 ECC load-reduced DIMMs for servers and workstations

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

Capacity 512GB (4 x 128GB)

  • ECC Load Reduced design protects data integrity in servers
  • 512 GB total capacity across four 128 GB modules
  • DDR4 2400 MHz CL17 speed with 1.2 V operation
  • 288-pin LRDIMM form factor fits server and workstation slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server-grade ECC LRDIMM kit

This OWC kit delivers 512GB of DDR4 server memory across four 128GB load-reduced DIMMs. It targets administrators upgrading workstations, servers or NAS systems that require registered ECC modules with 4Rx4 organisation. The kit runs at 2400MHz with CL17 latency and 1.2V operation.

Verify platform support for LRDIMM

Confirm your motherboard accepts 288-pin DDR4 ECC load-reduced DIMMs and can address 4Rx4 modules at this density. The memory will not work in standard desktop boards or alongside unbuffered DIMMs. Existing modules must match the same registered ECC specification to avoid instability.

Populates four slots in a dual-channel layout

Four slots are needed to install the full kit, freeing remaining slots for future expansion if the board supports higher capacities. Backward compatibility with 2133MHz systems allows deployment in older platforms without replacing the CPU or chipset. No heat spreaders are fitted, so airflow across the modules must be adequate.

Ciri-ciri utama

  • ECC Load Reduced design protects data integrity in servers
  • 512 GB total capacity across four 128 GB modules
  • DDR4 2400 MHz CL17 speed with 1.2 V operation
  • 288-pin LRDIMM form factor fits server and workstation slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

Spesifikasi

BrandOWC
Part Number2L4D44R4512S
Capacity512GB (4 x 128GB)
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

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Does the 512GB kit ship as four 128GB modules or do I need to buy extra sticks?

The kit contains four 128GB modules for a total of 512GB; nothing else is required to reach that capacity.

Should I choose the 4Rx4 2400MHz CL17 version or a different rank and speed?

This 4Rx4 DDR4 2400MHz CL17 kit is the only version offered; select it if your server or workstation requires load-reduced ECC at that speed and rank.

What does the 2400MHz PC4-19200 rating mean once the RAM is installed in my server?

The modules run at 2400MHz with CL17 latency at 1.2V, and they will also operate at 2133MHz if the platform only supports the lower speed.

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