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Two green DDR4 ECC registered DIMMs, 288-pin, no heat spreader

OWC

OWC 2R4D42R4064P 64GB (2x32GB) DDR4 2400 CL17 ECC Registered RDIMM 1.2V 288-pin Server RAM

SKU CH-RXK7-03S2T

ECC registered dual-channel kit with two 32 GB DDR4-2400 CL17 modules for servers and workstations

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 64GB (2 x 32GB)

Show 2 more configurations

Rank 2Rx4

  • ECC protection prevents data errors in critical workloads
  • Dual-channel 64 GB kit boosts multitasking headroom
  • Registered DDR4 2400 CL17 meets JEDEC server specs
  • Low 1.2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

Server DDR4 ECC RDIMM

This OWC kit delivers 64GB of DDR4 2400 memory in two 32GB registered DIMMs. It is built for servers, workstations and NAS systems that require ECC error correction. Standard desktop boards cannot use registered modules, so this kit will not work in consumer PCs.

Registered DDR4 limits

Registered DIMMs add a clock cycle of buffering that stabilises heavy memory loads on multi-socket platforms. The same buffering prevents the modules from functioning in unbuffered desktop chipsets. Mixing registered and unbuffered memory is not supported and will prevent boot.

Build and daily use

The modules use a 288-pin DDR4 form factor without heat spreaders, keeping height low for dense server chassis. JEDEC and RoHS compliance ensures compatibility with OEM-qualified platforms. Dual-rank 2Rx4 organisation fits standard server memory population rules.

Highlights

  • ECC protection prevents data errors in critical workloads
  • Dual-channel 64 GB kit boosts multitasking headroom
  • Registered DDR4 2400 CL17 meets JEDEC server specs
  • Low 1.2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

Specifications

BrandOWC
Part Number2R4D42R4064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
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 pick the 64 GB dual-channel kit or buy single 32 GB modules instead?

The 64 GB kit provides two matched 32 GB modules tested together for dual-channel operation, which is the simplest way to reach 64 GB with guaranteed compatibility.

Will the 2400 MHz CL17 rating deliver that speed in my server?

The modules run at 2400 MHz with CL17 latency when the platform supports DDR4-2400; otherwise they down-clock to the highest speed the memory controller allows.

Is the 288-pin DDR4 RDIMM interface compatible with my workstation board?

The 288-pin ECC registered DDR4 RDIMM fits server and workstation slots that accept registered memory; it will not work in desktop boards that require unbuffered DIMMs.

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