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Green rectangular DDR4 RDIMM circuit board with black memory chips and gold edge connectors

OWC

OWC 32GB DDR4 3200 CL22 ECC Registered RDIMM 2Rx4 1.2V 288-pin memory upgrade

SKU CH-18BR-0H6WH

A 32 GB DDR4 3200 CL22 ECC registered RDIMM for Gigabyte MZ32 and MZ71 server platforms

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB

  • ECC registered design protects data integrity in servers
  • 32 GB capacity expands memory for demanding workloads
  • DDR4 3200 speed with CL22 latency delivers responsive performance
  • 2 V operation reduces power draw in compatible systems
  • Validated for Gigabyte MZ32-AR0 MZ32-AR1 MZ71-CE0 MZ71-CE1 MZ72-HB0 platforms

32GB DDR4 ECC Registered RDIMM

This 32GB DDR4 module runs at 3200 MT/s with CL22 latency and 1.2 V operation. It uses a 288-pin 2Rx4 registered design with on-die ECC for data integrity. The part is validated for Gigabyte MZ32-AR0, MZ32-AR1, MZ71-CE0, MZ71-CE1 and MZ72-HB0 server and workstation platforms.

Passive operation and low voltage

No heat spreader is fitted, so the module relies on chassis airflow for cooling. The 1.2 V JEDEC standard voltage keeps power draw modest under typical server workloads. Silent operation is assured because there are no active cooling components on the DIMM itself.

Registered ECC for dense server builds

The registered buffer reduces electrical load on the memory controller, allowing higher capacities per channel. It cannot be mixed with unbuffered or load-reduced DIMMs. The module drops into standard 288-pin DDR4 slots and is backward compatible with 2133, 2400, 2666 and 2933 MT/s bus speeds. It is not suitable for consumer desktop motherboards.

How it compares

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

Price $201.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
CAS latency 22
Typical for this category: the median of 483 items is 22.
Price per GB $6.31 per GB
Cheaper than about 62% 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 number3R2D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latency22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsGigabyte MZ32-AR0
Gigabyte MZ32-AR1
Gigabyte MZ71-CE0
Gigabyte MZ71-CE1
Gigabyte MZ72-HB0

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 288-pin DDR4 ECC RDIMM in my Gigabyte MZ32-AR0, and what step do people often get wrong?

Align the notch on the module with the slot key, press straight down until the retention clips click, and ensure the system is fully powered off — not just in sleep — before seating the registered DIMM.

What maintenance or replacement will the 32GB 2Rx4 module need over its service life?

No routine maintenance is required; the module has no heat spreader and runs at 1.2V, so replacement is only needed if a memory test reports correctable ECC errors that exceed the platform threshold.

What limit appears first when the RDIMM runs sustained workloads at 3200 CL22?

The registered buffer adds one cycle of latency, so memory-controller throughput saturates before the DRAM cells reach thermal limits, making bandwidth the first bottleneck under continuous load.

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