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Green 288-pin DDR4 ECC registered DIMM module with black chips, no heat spreader

OWC

OWC 64GB DDR4 2933MHz ECC RDIMM CL21 1.2V 288pin memory upgrade

SKU CH-84YZ-9N7K0

64 GB DDR4 ECC registered DIMM running at 2933 MHz CL21 for Supermicro X11DPT-L, X11DPT-PS, X11DPU, X11DPX-T and X11DSC+ motherboards

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB

  • 64GB capacity supports large server workloads
  • DDR4 2933MHz speed with CL21 latency
  • ECC registered design prevents data corruption
  • 2V operation reduces power consumption
  • Compatible with five Supermicro X11 motherboards

Server ECC RDIMM upgrade

This OWC module provides 64GB of DDR4 2933MHz ECC registered memory in a 288pin form factor. It runs at 1.2V with CL21 latency and a 2Rx4 rank configuration. The kit is validated for Supermicro motherboards X11DPT-L, X11DPT-PS, X11DPU, X11DPX-T and X11DSC+.

Suited for server and workstation builds

This memory targets administrators upgrading compatible Supermicro platforms or building new server and NAS systems that require ECC registered DIMMs. It is not for standard desktop computers and cannot be mixed with unbuffered modules. Buyers needing consumer desktop RAM should look elsewhere.

Verify motherboard compatibility first

Confirm your system is one of the listed Supermicro models before ordering. Check that the board supports DDR4 2933MHz registered ECC DIMMs and that you are not mixing with unbuffered memory. The module is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds.

Highlights

  • 64GB capacity supports large server workloads
  • DDR4 2933MHz speed with CL21 latency
  • ECC registered design prevents data corruption
  • 2V operation reduces power consumption
  • Compatible with five Supermicro X11 motherboards

Specifications

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11DPT-L
Supermicro Motherboard X11DPT-PS
Supermicro Motherboard X11DPU
Supermicro Motherboard X11DPX-T
Supermicro Motherboard X11DSC+

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

Do I need a Supermicro X11 series motherboard such as the X11DPT-L or X11DPX-T for this 64GB DDR4 2933MHz ECC RDIMM to work?

Yes, this module is validated for Supermicro X11DPT-L, X11DPT-PS, X11DPU, X11DPX-T and X11DSC+ motherboards that accept 288-pin DDR4 ECC registered DIMMs.

Can I add this CL21 1.2V registered ECC module alongside existing 2133MHz or 2400MHz DDR4 ECC RDIMMs in the same server?

The module is backward compatible with 2133MHz, 2400MHz and 2666MHz DDR4 ECC registered DIMMs, but all slots must use registered ECC memory — unbuffered DIMMs cannot be mixed.

How can I confirm the 64GB 2Rx4 kit is running at 2933MHz with ECC active after installation?

Check the BIOS memory information or OS tools such as dmidecode to verify 2933 MT/s speed, CL21 timings, 1.2 V operation and ECC enabled status.

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