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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

  • Total capacity64 GB (8 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 64GB (8 x 8GB)

Show 2 more

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.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $573.99
Pricier than about 72% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (8 × 8 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $8.97 per GB
Pricier than about 63% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number2R4D41R4064K
Total capacity64 GB (8 × 8 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

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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