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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 2R9D42R816GB 16GB DDR4 2933 ECC RDIMM

SKU CH-7FRA-WV1J0

16GB DDR4 2933 ECC registered DIMM for Supermicro X11 server and workstation motherboards

  • Capacity16GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 16GB

  • 16GB
  • 32GB
  • 64GB
  • 128GB

Struck-through versions exist but are not stocked here.

  • ECC registered design protects data integrity in servers
  • 2933 MHz DDR4 speed matches PC4-23400 bandwidth
  • 2 V operation reduces power draw and heat
  • Validated for Supermicro X11DPG-SN X11DPH-I X11DPH-T X11DPH-Tq X11DPi-N
  • Replaces Supermicro MEMDR416LCL01ER29 MEMDR416LCL03ER29 MEM-DR416LD-ER29 MEMDR416LHL04ER29 MEMDR416LHL05ER29

OWC 16GB DDR4 2933 ECC RDIMM

This 16GB DDR4 2933 ECC registered DIMM is built for Supermicro X11DPG-SN, X11DPH-I, X11DPH-T, X11DPH-Tq and X11DPi-N motherboards. It targets server, workstation and NAS builders who need registered memory with error correction. It will not work in standard desktop computers and cannot be mixed with unbuffered modules.

Installation and common issues

The module uses a standard 288-pin DDR4 slot, so physical insertion is straightforward on compatible boards. The main risk is attempting to install it in a consumer desktop or pairing it with unbuffered DIMMs, both of which will prevent the system from posting. No heat spreader is fitted, so airflow around the DIMM slots should be adequate.

Capacity and headroom

A single 16GB rank 2Rx8 module adds 16GB of ECC protected capacity at 2933MHz, with backward compatibility at 2133MHz, 2400MHz and 2666MHz. It comfortably handles multi-application workloads and larger datasets in supported server platforms. Headroom ends when the motherboard’s maximum DIMM count or total memory limit is reached.

Highlights

  • ECC registered design protects data integrity in servers
  • 2933 MHz DDR4 speed matches PC4-23400 bandwidth
  • 2 V operation reduces power draw and heat
  • Validated for Supermicro X11DPG-SN X11DPH-I X11DPH-T X11DPH-Tq X11DPi-N
  • Replaces Supermicro MEMDR416LCL01ER29 MEMDR416LCL03ER29 MEM-DR416LD-ER29 MEMDR416LHL04ER29 MEMDR416LHL05ER29

Specifications

BrandOWC
Part Number2R9D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11DPG-SN
Supermicro Motherboard X11DPH-I
Supermicro Motherboard X11DPH-T
Supermicro Motherboard X11DPH-Tq
Supermicro Motherboard X11DPi-N

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How can I confirm the module is running at 2933 MHz with ECC active after installation?

Enter the server BIOS or use a tool such as dmidecode to verify the reported speed shows 2933 MT/s and that ECC status reads enabled for the new DIMM.

What ships with the OWC 2R9D42R816GB module and what must I source separately?

The box contains the single 16 GB 288-pin DDR4 ECC registered DIMM; no heat spreader, cables, brackets or additional memory kits are included.

Which capacity and rank should I choose for a Supermicro X11DPH-T that needs registered ECC memory?

This 16 GB 2Rx8 registered ECC DIMM matches the supported specification for the X11DPH-T; select additional identical modules to fill the required channels.

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