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Eight green DDR4 server memory modules with gold contacts, no heat spreaders

OWC

OWC 64GB (8x8GB) DDR4 2400 CL17 ECC Registered RDIMM 1.2V 288-pin server RAM

SKU CH-SYYJ-G38F4

Eight 8 GB DDR4 ECC registered RDIMMs at 2400 MHz CL17 1.2 V for servers and workstations

  • Capacity64GB (8 x 8GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 64GB (8 x 8GB)

Show 2 more configurations

Rank 1Rx4

  • ECC registered design protects data integrity in servers
  • 64 GB kit with eight 8 GB modules expands capacity
  • DDR4 2400 CL17 at 1.2 V balances speed and efficiency
  • 288-pin RDIMM form factor fits server and workstation slots
  • JEDEC and RoHS compliant for reliable OEM-grade operation

Capacity and fit

This OWC kit delivers 64GB of DDR4 memory across eight 8GB registered DIMMs. It is built for servers, workstations and NAS systems that require ECC error correction and registered signalling. The modules will not work in standard desktop platforms or alongside unbuffered memory.

Sustained operation

Each module runs at 2400MHz with a CL17 latency and a low 1.2V supply, matching the PC4-19200 JEDEC profile. Registered buffering reduces electrical load on the memory controller, helping stability during long compute runs and heavy virtualisation workloads. The 1Rx4 organisation supports dense population without exceeding rank limits per channel.

Build and daily handling

Bare green PCBs without heat spreaders keep the profile slim for tight server slots and simplify cleaning in rack environments. The 288-pin RDIMM form factor locks securely into registered DIMM sockets, and JEDEC compliance plus RoHS certification mean the kit meets OEM qualification standards for warranty-safe upgrades.

Highlights

  • ECC registered design protects data integrity in servers
  • 64 GB kit with eight 8 GB modules expands capacity
  • DDR4 2400 CL17 at 1.2 V balances speed and efficiency
  • 288-pin RDIMM form factor fits server and workstation slots
  • JEDEC and RoHS compliant for reliable OEM-grade operation

Specifications

BrandOWC
Part Number2R4D41R4064K
Capacity64GB (8 x 8GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Other versions of this model

5 more in the same range

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Questions about this item

How much power does the 1.2V 8x8GB kit draw when the server runs continuously?

Each module operates at 1.2V DDR4 standard voltage; total system draw depends on the platform's memory controller and how many DIMM slots are populated.

What must the motherboard provide for these 288-pin RDIMMs to function?

A server or workstation board with DDR4 RDIMM slots that support ECC registered memory and 1Rx4 organisation — standard desktop boards will not work.

Will these CL17 modules run at their rated 2400 speed if the system BIOS only supports lower DDR4 speeds?

JEDEC-compliant DDR4 modules down-clock automatically to the highest speed the platform allows, so they will operate at the maximum supported data rate.

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