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Green rectangular DDR5 memory module with gold edge connectors and black chips, no heat spreader

OWC

OWC 64GB DDR5 4800 ECC RDIMM CL40 2Rx4 1.1V 4R8D52R464GB

SKU CH-4X0Q-4CGC7

A 64 GB DDR5 4800 ECC registered DIMM for Gigabyte G293-Z21, G293-Z22, G293-Z23, G293-Z40 and G293-Z41 servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64GB capacity expands server memory headroom
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity in critical workloads
  • 1V operation reduces power draw per module
  • Validated for Gigabyte G293-Z21, Z22, Z23, Z40, Z41

64 GB DDR5 ECC RDIMM for Gigabyte G293 servers

This single 64 GB DDR5 4800 PC5-38400 CL40 registered DIMM is built for Gigabyte G293-Z21, G293-Z22, G293-Z23, G293-Z40 and G293-Z41 platforms. It delivers 64 GB of error-correcting capacity in one 288-pin module for workstations, NAS, servers and network switches that require registered ECC memory.

Thermals and power at DDR5 4800

Operating at 1.1 V, the module runs within JEDEC-standard limits for DDR5 registered DIMMs. No heat spreader is fitted, so airflow across the sticks handles thermal load in typical server chassis. Power draw stays consistent with the 1.1 V specification during normal multi-threaded workloads.

Upgrade path from lower-capacity registered DDR5

The 64 GB density replaces smaller registered DDR5 DIMMs to maximise memory slots on the G293 series. The jump is worth it when workloads need more simultaneous VMs, larger in-memory databases or higher buffer pools without mixing ranks. It will not work in standard desktop boards or alongside unbuffered or load-reduced ECC modules.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,487.99
Pricier than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
CAS latency 40
Higher than about 70% of the 483 comparable items (median 22).
Price per GB $23.25 per GB
Pricier than about 68% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number4R8D52R464 GB
Total capacity64 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGigabyte G293-Z21
Gigabyte G293-Z22
Gigabyte G293-Z23
Gigabyte G293-Z40
Gigabyte G293-Z41

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 288-pin DDR5 ECC RDIMM into a Gigabyte G293-Z21 server, and what step do people often miss?

Align the notch on the module with the slot key, press firmly until both retention clips click, and ensure the system is fully powered off and unplugged — skipping the power-off step is the most common error.

What maintenance or replacement will the 64GB 2Rx4 registered DIMM need over its service life?

No scheduled maintenance is required; if a module fails it is replaced as a unit, and the limited lifetime warranty covers eligible replacements.

What limit appears first when the 4800 CL40 1.1V module runs sustained workloads in a G293-Z22?

The memory controller’s maximum supported speed of 4800 MT/s and the fixed CL40 latency are the primary limits under continuous load.

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