We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green 288-pin DDR4 RDIMM module, no heat spreader

OWC

OWC 64GB DDR4 3200 ECC Registered RDIMM 2Rx4 1.2V server RAM

SKU CH-YHQD-65G76

64 GB DDR4 3200 ECC registered RDIMM, CL22, 1.2 V, 2Rx4 for servers and workstations

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 64 GB capacity lets servers handle larger workloads
  • DDR4 3200 speed delivers high data throughput
  • ECC registered design protects data integrity in critical tasks
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits standard server slots

64GB DDR4 ECC Registered RDIMM

This 64GB DDR4 3200 module is built for servers and workstations that require ECC registered memory. It operates at 1.2V with a CL22 latency and a 2Rx4 rank configuration. The 288-pin RDIMM fits standard DDR4 server slots and matches the specifications of Hynix HMAA8GR7AJR4N-XN and HMAA8GR7CJR4N-XN parts. It is not compatible with standard desktop computers or unbuffered memory configurations.

Installation and compatibility

Installation follows standard DDR4 RDIMM procedures, but the module must be paired with identical capacity, speed and registered ECC modules for stable operation. Mixing with unbuffered or non-ECC DIMMs will prevent the system from booting. Verify that your platform supports registered ECC memory before purchase, as consumer motherboards typically do not. No heat spreader is present, so airflow across the DIMM is recommended.

Capacity and headroom

The single 64GB module provides substantial memory capacity for virtualisation, database workloads and large-file processing. Systems populated with multiple modules can scale to high total capacities within the platform's supported limits. Performance is governed by the DDR4 3200 JEDEC standard; the module does not support overclocking or XMP profiles. Headroom is determined by the number of available DIMM slots and the memory controller's maximum supported density.

How it compares

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

Price $381.99
Pricier than about 65% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $5.97 per GB
Cheaper than about 64% of the 6,064 comparable items (median $7.25 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 number3R2D42R464 GB
Total capacity64 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How can I confirm the 64GB DDR4 3200 module is running at PC4-25600 with CL22 after installation?

Check the BIOS or UEFI memory information screen; it should report 3200 MT/s, 1.2 V operation, CL22 timings and ECC Registered status for each installed DIMM.

What ships with the OWC 64GB DDR4 3200 ECC RDIMM and what must I source separately?

The box contains the single 288-pin 2Rx4 module only; no heat spreader, tools or additional DIMMs are included.

Which capacity and rank configuration should I select for a server that requires 64 GB per DIMM slot?

Choose this 64 GB 2Rx4 Registered ECC DDR4 3200 module; it matches the Hynix HMAA8GR7AJR4N-XN and HMAA8GR7CJR4N-XN specifications exactly.

More in ECC Server RAM

Similar items