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Green rectangular DDR4 288-pin ECC registered DIMM module with black memory chips and gold edge connectors

OWC

OWC 16GB DDR4 2933MHz ECC Registered RDIMM 2Rx8 CL21 1.2V 288pin Memory Upgrade

SKU CH-XK5V-AS25F

16 GB DDR4 2933 MHz ECC registered RDIMM for compatible Supermicro server motherboards

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 16GB

  • ECC registered design protects data integrity in servers
  • 16GB capacity at DDR4 2933MHz CL21 boosts multitasking headroom
  • 2V operation reduces power draw and heat
  • Validated for Supermicro X11DPi-NT, X11DPL-i, X11DPS-RE, X11DPT-B, X11DPT-BH
  • Backward compatible with 2133MHz, 2400MHz and 2666MHz systems

Server ECC RDIMM Upgrade

This 16GB DDR4 2933MHz ECC Registered RDIMM is built for Supermicro X11DPi-NT, X11DPL-i, X11DPS-RE, X11DPT-B and X11DPT-BH motherboards. It targets administrators expanding workstation, server or NAS memory capacity with validated modules. Buyers needing unbuffered desktop memory cannot use this product.

Registered DIMM Architecture

The registered design places a buffer between the memory controller and DRAM chips, reducing electrical load on the motherboard. This allows higher total capacities across populated slots but requires a platform that supports registered ECC memory. It cannot be mixed with unbuffered modules in the same system.

16GB Dual-Rank Headroom

A single 2Rx8 module delivers 16GB at CL21 1.2V with backward compatibility at 2133, 2400 and 2666MHz. It handles typical virtualisation and file-service workloads; larger datasets or heavy database caching will require additional modules to scale further.

How it compares

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

Price $107.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.75 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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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
Compatibility
Compatible systemsSupermicro Motherboard X11DPi-NT
Supermicro Motherboard X11DPL-i
Supermicro Motherboard X11DPS-RE
Supermicro Motherboard X11DPT-B
Supermicro Motherboard X11DPT-BH

Other versions of this model

5 more in the same range

Questions about this item

Does the 2Rx8 registered layout limit the number of modules I can install per channel on a Supermicro X11DPi-NT?

The module is a 2Rx8 registered DIMM; maximum modules per channel depends on the motherboard's memory-controller specification, not on the stick itself.

How much heat does the 1.2 V DDR4 2933 MHz registered ECC module produce under continuous server load?

Running at 1.2 V with no heat spreader, it draws standard DDR4 registered power; actual thermals depend on case airflow and DIMM density.

Which Supermicro motherboards must I already own for this 288-pin ECC RDIMM to work?

Qualified boards are X11DPi-NT, X11DPL-i, X11DPS-RE, X11DPT-B and X11DPT-BH; it will not work in standard desktop systems.

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