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Green 288-pin DDR4 RDIMM module, black chips, no heat spreader

OWC

OWC 16GB DDR4 3200 CL22 ECC Registered RDIMM server RAM

SKU CH-CBZN-2RR9E

16 GB DDR4-3200 ECC registered RDIMM for server and workstation upgrades

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • ECC registered design protects data integrity in server workloads
  • 16 GB capacity expands memory headroom for virtualisation tasks
  • DDR4 3200 speed delivers PC4 25600 bandwidth for demanding applications
  • CL22 latency at 1.2 V balances responsiveness with power efficiency
  • 288 pin 2Rx8 registered DIMM ensures compatibility with qualified QNAP systems

16GB DDR4 3200 ECC Registered RDIMM

This 16GB DDR4 3200 ECC Registered RDIMM is built for workstations and servers that require error-correcting registered memory. It operates at CL22 latency with a 1.2V voltage and a 2Rx8 rank configuration. The module is a direct replacement for QNAP part number RAM-16GDR4ECT0-RD-3200.

Upgrading from unbuffered or non-ECC memory

This registered ECC module cannot be mixed with unbuffered memory and will not function in standard desktop computers. The upgrade is worth it when your server or workstation motherboard specifically requires registered ECC DIMMs to maintain data integrity and system stability.

Verify registered ECC support and slot count

Before ordering, confirm that your system supports 288-pin DDR4 registered ECC memory and that you are not mixing it with unbuffered modules. Check the number of available DIMM slots and the maximum supported capacity per slot to ensure compatibility.

How it compares

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

Price $100.99
Cheaper than about 69% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $6.31 per GB
Cheaper than about 61% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number3R2D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Will the 288-pin DDR4 RDIMM fit my server's memory slots?

Yes — the module uses the standard 288-pin DDR4 RDIMM form factor, so it fits any server or workstation slot designed for registered DDR4 memory.

What is the correct way to seat the 2Rx8 registered module, and what step do people often miss?

Align the notch with the slot key, press straight down until both side clips click, then verify the system recognises the full 16 GB at 3200 MT/s — skipping the clip check is the common mistake.

When should I expect to replace this ECC registered DIMM?

The module has no moving parts and runs at 1.2 V; replacement is only needed if a memory test reports uncorrectable errors or the server's workload outgrows 16 GB capacity.

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