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Eight green DDR4 LRDIMM sticks with black chips and gold contacts

OWC

OWC 1TB (8x128GB) DDR4 2400MHz PC4-19200 CL17 4RX4 ECC LRDIMM 1.2V 288-pin server RAM

SKU CH-RM10-2FK18

Eight 128 GB DDR4-2400 ECC load-reduced DIMMs add 1 TB of registered server memory with CL17 latency at 1.2 V

  • Capacity1TB (8 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 1TB (8 x 128GB)

  • 1TB total capacity from eight 128GB modules
  • DDR4 2400MHz PC4-19200 speed for server workloads
  • ECC load-reduced design corrects errors under heavy load
  • CL17 latency at 1.2V for efficient operation
  • Backward compatible with 2133MHz systems

High-density server memory kit

This OWC kit delivers 1TB of DDR4 capacity across eight 128GB LRDIMM modules. It targets administrators upgrading enterprise servers, workstations or NAS systems that require registered ECC memory with load-reduced architecture.

DDR4-2400 bandwidth ceiling

The modules operate at PC4-19200 speed with CL17 latency and 1.2V voltage. Backward compatibility extends to 2133MHz systems, but the load-reduced design cannot be mixed with unbuffered DIMMs and will not function in standard desktop platforms.

Tool-free DIMM installation

Each 288-pin module seats vertically in registered DIMM slots without cables or drivers. The most common issue is attempting to populate consumer motherboards that lack LRDIMM support, which prevents the system from posting.

Highlights

  • 1TB total capacity from eight 128GB modules
  • DDR4 2400MHz PC4-19200 speed for server workloads
  • ECC load-reduced design corrects errors under heavy load
  • CL17 latency at 1.2V for efficient operation
  • Backward compatible with 2133MHz systems

Specifications

BrandOWC
Part Number2L4D44R41TBK
Capacity1TB (8 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

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I buy the 1TB kit as eight 128GB modules or look for a different capacity?

The kit is supplied as eight 128GB LRDIMMs totalling 1TB; choose this version when your server or workstation has eight available 288-pin DDR4 slots and supports 4Rx4 load-reduced ECC memory.

What does the 2400MHz PC4-19200 rating deliver in an actual server?

It runs at 2400MHz with CL17 latency at 1.2V, and will also operate at 2133MHz if the platform requires the lower speed.

How does the DDR4 288-pin ECC load-reduced interface limit real-world use?

The 288-pin LRDIMM form factor fits only server, workstation or NAS boards that accept DDR4 load-reduced ECC; it cannot be used in standard desktops or mixed with unbuffered modules.

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