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Green rectangular circuit board with gold edge connector and black memory chips

OWC

OWC 16GB DDR4 2933MHz ECC Registered RDIMM 2Rx8 1.2V server RAM

SKU CH-PJRP-F7X6D

16GB DDR4 2933MHz ECC registered RDIMM for servers and workstations with 2Rx8 organisation and 1.2V operation

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • ECC registered design protects data integrity in servers
  • 2933 MHz DDR4 speed delivers high throughput for workloads
  • 16 GB capacity expands memory for virtualization and databases
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server ECC RDIMM for workstations and NAS

This OWC module delivers 16GB of DDR4 ECC registered memory built for servers, workstations and NAS systems. It runs at 2933MHz with CL21 latency and 1.2V operation. The 2Rx8 dual-rank organisation suits multi-channel platforms that require registered DIMMs.

Registered DIMM limits and speed compatibility

Registered ECC memory cannot be used in standard desktop computers and must not be mixed with unbuffered modules. The JEDEC-compliant part is backward compatible with 2133MHz, 2400MHz and 2666MHz bus speeds. Buyers who need unbuffered desktop RAM or non-ECC modules cannot use this product.

16GB 288-pin DDR4 2933MHz CL21 1.2V specification

The single specification that decides fit is the 16GB 288-pin DDR4 2933MHz CL21 1.2V registered ECC 2Rx8 profile. It matches Supermicro part numbers MEM-DR416L-CL01-ER29, MEM-DR416L-CL03-ER29 and MEM-DR416L-HL04-ER29. Systems requiring a different capacity, rank layout or voltage will not accept this module.

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).

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 number2R9D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Should I pick this 16GB DDR4-2933 module or a different capacity?

This module is a single 16GB stick; add multiple identical sticks to reach the total capacity your server board supports.

What does the 2933MHz rating deliver in a live server?

The module runs at DDR4-2933 CL21; real-world bandwidth depends on your platform memory controller and populated slots.

How does the PC4-23400 ECC registered interface limit performance?

PC4-23400 is the JEDEC DDR4-2933 standard; the registered buffer adds one cycle latency but enables higher capacities per channel.

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