OWC 3R2D42R816GB 16GB DDR4 3200 ECC Registered RDIMM 2Rx8 1.2V Server Memory
16 GB DDR4 3200 ECC registered RDIMM with CL22 latency and 1.2 V operation for server upgrades
- Total capacity16 GB
- Rated speedDDR4 3200 (PC4 25600)
- CAS latencyCL22
- Rated voltage1.2 V
- Buffer typeRegistered
- Memory rank2Rx8
- 16GB DDR4 3200MHz ECC Registered RDIMM for server reliability
- CL22 latency at 1.2V balances speed with low power draw
- 2Rx8 dual-rank architecture boosts memory density per slot
- JEDEC-standard compliance ensures broad workstation and server compatibility
- 288-pin DDR4 form factor fits registered DIMM motherboards only
Server-grade DDR4 RDIMM
This 16GB DDR4 3200 ECC registered DIMM targets workstations and servers that require error-correcting memory. It will not work in standard desktop platforms and must not be mixed with unbuffered modules. The 288-pin module runs at 1.2V with CL22 latency and a 2Rx8 organisation.
Build integration needs
The stick plugs into a 288-pin DDR4 slot and draws 1.2V from the motherboard. No heat spreader is fitted, so airflow across the PCB is necessary. Systems must support registered ECC memory; unbuffered consumer boards will not POST with this module installed.
Sustained-load behaviour
JEDEC-compliant timings and ECC correction maintain data integrity during continuous operation. Registered signalling reduces electrical load on the memory controller when multiple DIMMs are populated. The module is validated for long-term server workloads rather than short benchmark runs.
How it compares
Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.
- Price $109.99
- Cheaper than about 66% 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 $6.87 per GB
- Cheaper than about 54% of the 6,064 comparable items (median $7.25 per GB).
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Specifications
| Product | |
|---|---|
| Brand name | OWC |
| Part number | 3R2D42R816 GB |
| Total capacity | 16 GB |
| Product type | 288-Pin DDR4 ECC RDIMM |
| Performance | |
| Rated speed | DDR4 3200 (PC4 25600) |
| Memory | |
| CAS latency | CL22 |
| ECC support | Yes |
| Buffer type | Registered |
| Memory rank | 2Rx8 |
| Heat spreader | No |
| Power | |
| Rated voltage | 1.2 V |
Questions about this item
What is the CAS latency that determines the minimum response delay under sustained workloads?
The module operates at CL22, which sets the timing floor for every access once the system is under continuous load.
How much power does the 16GB DDR4 3200 registered DIMM draw and does it need extra cooling when running all day?
It runs at the standard 1.2 V for DDR4 registered memory and has no heat spreader, so it depends on normal chassis airflow through the DIMM slots.
What motherboard slot type and memory architecture must the system already provide for this RDIMM to function?
The system needs a 288-pin DDR4 registered DIMM slot and a platform that supports ECC registered memory; standard desktop boards that only accept unbuffered modules will not work.
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