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Two black DDR4 UDIMM modules without heat spreaders, 32GB total

OWC

OWC 32GB (2x16GB) DDR4 2933MHz ECC Unbuffered UDIMM desktop RAM

SKU CH-E6F3-C5YZS

32 GB dual-channel DDR4 kit with ECC, 2933 MHz CL21 timing and 1.2 V operation for workstations and servers

  • Capacity32GB (2 x 16GB)
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 32GB (2 x 16GB)

  • 32 GB dual-channel kit expands multitasking headroom for workstations and NAS
  • ECC protection detects and corrects single-bit errors to safeguard data integrity
  • JEDEC-standard 2933 MHz CL21 timings deliver reliable performance at 1.2 V
  • Unbuffered 288-pin UDIMM fits standard desktop, server and NAS DIMM slots
  • Backward compatible with 2133, 2400 and 2666 MHz systems for easy upgrades

32GB DDR4 ECC UDIMM kit

This OWC kit provides 32GB of DDR4 ECC unbuffered memory across two 16GB modules. It runs at 2933MHz with a CL21 latency and operates at 1.2V. The 288-pin UDIMMs are designed for desktop workstations, servers and NAS systems that require error-correcting code memory.

Suited for ECC-capable platforms only

The modules are built for systems that support ECC unbuffered DDR4 UDIMMs, such as compatible workstations, servers and NAS units. They will not function correctly in standard consumer desktops or laptops that lack ECC support in the CPU and chipset. Buyers without ECC-capable hardware should choose non-ECC memory instead.

ECC unbuffered UDIMM requirement

The single specification that decides fitment is whether the target system accepts DDR4 ECC unbuffered UDIMMs at 288 pins. If the motherboard and processor do not explicitly support ECC unbuffered memory, these modules will not work. Verify the platform documentation for ECC UDIMM compatibility before purchasing.

Highlights

  • 32 GB dual-channel kit expands multitasking headroom for workstations and NAS
  • ECC protection detects and corrects single-bit errors to safeguard data integrity
  • JEDEC-standard 2933 MHz CL21 timings deliver reliable performance at 1.2 V
  • Unbuffered 288-pin UDIMM fits standard desktop, server and NAS DIMM slots
  • Backward compatible with 2133, 2400 and 2666 MHz systems for easy upgrades

Specifications

BrandOWC
Part Number2E9D41R8032P
Capacity32GB (2 x 16GB)
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Questions about this item

What motherboard slot does this 288-pin DDR4 UDIMM require?

It fits a standard DDR4 288-pin DIMM slot on a desktop, workstation, server or NAS motherboard that supports unbuffered ECC memory at 1.2V.

Will the 2933MHz CL21 modules run with my existing 2400MHz DDR4 sticks?

Yes, the kit is backward compatible with 2133MHz, 2400MHz and 2666MHz DDR4; the system will operate all modules at the lowest common speed.

How can I confirm the ECC function is active after installing the 2x16GB kit?

Enter the BIOS or UEFI and verify that ECC is shown as enabled, or run a memory diagnostic that reports ECC correction events for the 32GB capacity.

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