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Eight green DDR5 RDIMM sticks in anti-static tray

OWC

OWC 512GB (8x64GB) DDR5 4800 CL40 2Rx4 ECC Registered RDIMM server RAM

SKU CH-ZGVK-FMB3V

Eight 64 GB DDR5 4800 CL40 registered ECC modules deliver 512 GB for workstation and server upgrades

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 512GB (8 x 64GB)

Show 4 more

Rank 2Rx4

  • 512 GB total capacity for demanding server workloads
  • 8 × 64 GB modules enable full population of eight DIMM slots
  • DDR5 4800 speed with CL40 latency for high-throughput data handling
  • ECC Registered 2Rx4 design protects data integrity in critical applications
  • JEDEC-standard 1.1 V operation ensures broad platform compatibility

512GB DDR5 ECC Registered Kit

This 512GB kit contains eight 64GB DDR5 4800 CL40 registered ECC RDIMMs. It is built for workstations and servers that require registered memory with error correction. Standard desktop computers cannot use this memory.

Installation requires registered DIMM slots

Modules install in 288-pin DDR5 slots that support registered ECC memory. The kit will not work in unbuffered or load-reduced slots. Mixing with non-registered or load-reduced DIMMs prevents the system from booting.

Verify registered ECC support before ordering

Check that your motherboard or server platform explicitly supports DDR5 registered ECC RDIMMs at 4800 MT/s. Confirm the memory controller accepts 2Rx4 organisation and 1.1V operation. Capacity per slot and maximum total memory are platform dependent.

How it compares

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

Price $10,848.99
Pricier than about 91% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $21.19 per GB
Pricier than about 82% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R4512K
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the kit is running at DDR5 4800 CL40 after installation?

Check the BIOS or UEFI memory information screen; it should report 4800 MT/s speed and CAS latency 40 for each of the eight 64 GB modules.

What exactly ships in the box and what must I source separately?

The box contains eight 64 GB DDR5 288-pin ECC Registered RDIMM modules (total 512 GB). No heat spreaders, cables or tools are included.

Which capacity version should I choose for a dual-channel server board?

This kit is a dual-channel set of eight 64 GB modules; select it when your board has eight slots and you need 512 GB total at DDR5 4800 CL40.

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