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Green printed circuit board with black memory chips, no heat spreader, 288-pin DDR5 UDIMM form factor

OWC

OWC 16GB DDR5 5200 CL42 ECC Unbuffered UDIMM desktop RAM

SKU CH-TCJ2-G20SB

16 GB DDR5 desktop module running at 5200 MT/s with CL42 latency, ECC error correction and 1.1 V operation for workstations and servers

  • Capacity16GB
  • SpeedDDR5 5200 (PC5 41600)
  • CAS LatencyCL42
  • Voltage1.1V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 16GB

  • 16 GB capacity expands multitasking headroom for demanding workloads
  • DDR5 5200 speed delivers high bandwidth for data-intensive applications
  • CL42 latency supports responsive operation in memory-heavy tasks
  • ECC unbuffered design protects data integrity in workstations and servers
  • 1 V operation reduces power draw while maintaining stability

Single 16GB DDR5-5200 ECC UDIMM

This module delivers 16GB of DDR5 memory at 5200MT/s with CL42 latency. It operates at 1.1V and uses an unbuffered 288-pin design with on-die ECC. The part is built to JEDEC PC5-41600 specifications for desktop workstations, servers and NAS systems.

Suited for ECC-capable platforms only

Systems that support unbuffered ECC DDR5 UDIMMs can use this upgrade to add error-correcting capacity. Platforms limited to non-ECC consumer memory or registered DIMM slots cannot accept this module. Verify motherboard documentation before purchase.

16GB density at CL42 decides fit

The single-rank 16GB capacity combined with CL42 timing at 5200MT/s determines whether the module matches the memory controller’s qualified vendor list. If the platform requires a different density, rank configuration or lower latency, this part will not be compatible.

Highlights

  • 16 GB capacity expands multitasking headroom for demanding workloads
  • DDR5 5200 speed delivers high bandwidth for data-intensive applications
  • CL42 latency supports responsive operation in memory-heavy tasks
  • ECC unbuffered design protects data integrity in workstations and servers
  • 1 V operation reduces power draw while maintaining stability

Specifications

BrandOWC
Part Number5E2D51R816GB
Capacity16GB
SpeedDDR5 5200 (PC5 41600)
CAS LatencyCL42
Voltage1.1V
ECCYes
Buffered/RegisteredUnbuffered
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

Other versions of this model

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Questions about this item

Does the 288-pin DDR5 ECC unbuffered DIMM fit a standard desktop motherboard slot?

Yes, the module uses the standard 288-pin DDR5 UDIMM form factor, so it fits any desktop or workstation board with a DDR5 DIMM slot.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, press down firmly until both side clips click shut, and verify the system detects 16 GB at 5200 MT/s in BIOS.

Will the ECC function need any configuration or periodic replacement?

ECC runs automatically once the platform supports it; no user configuration is required and the module carries a limited lifetime warranty with no scheduled replacement.

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