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Green circuit board DDR5 RDIMM module with black chips, no heat spreader, 288 gold pins

OWC

OWC 16GB DDR5 5600 CL46 1Rx8 ECC Registered RDIMM 1.1V

SKU CH-M2FK-9C5VW

16GB DDR5 5600 ECC Registered RDIMM with CL46 latency and 1.1V operation for compatible servers and workstations

  • Capacity16GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS LatencyCL46
  • Voltage1.1V
  • ECCYes

Capacity 16GB

Show 4 more configurations

Rank 1Rx8

  • ECC registered design protects data integrity in servers
  • 16 GB capacity expands memory for heavy workloads
  • DDR5 5600 speed delivers high bandwidth throughput
  • 1 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits compatible server slots

Server ECC RDIMM

This 16GB DDR5 module delivers registered ECC memory for workstations and servers. It operates at 5600 MT/s with CL46 latency and a 1.1V supply. The single-rank 1Rx8 design uses 288-pin JEDEC-standard construction without a heat spreader. OWC validates every unit for warranty-safe upgrades.

Workstation and server builders

Systems that require registered ECC DDR5 RDIMMs for error-correcting stability will accept this module. Desktop PCs and consumer laptops cannot use registered memory and must look elsewhere. It also cannot be mixed with unbuffered or load-reduced ECC DIMMs in the same platform.

5600 MT/s registered ECC speed

The DDR5 5600 (PC5-44800) CL46 specification is the single figure that decides compatibility. Your motherboard and CPU must explicitly support DDR5 5600 registered ECC RDIMMs at 1.1V for this module to function.

Highlights

  • ECC registered design protects data integrity in servers
  • 16 GB capacity expands memory for heavy workloads
  • DDR5 5600 speed delivers high bandwidth throughput
  • 1 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits compatible server slots

Specifications

BrandOWC
Part Number5R6D51R816GB
Capacity16GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5600 (PC5 44800)
CAS LatencyCL46
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo

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

Does the 1.1 V DDR5 5600 RDIMM generate noticeable heat or fan noise during continuous server workloads?

The module runs at the standard DDR5 1.1 V and has no heat spreader, so thermal output matches JEDEC baseline figures; actual case airflow and fan curves determine any audible noise.

What motherboard features are required for this 288-pin ECC registered DIMM to function?

A workstation or server board with DDR5 RDIMM slots, registered-buffer support and ECC enabled in firmware is mandatory; standard desktop platforms will not accept this module.

Can this CL46 1Rx8 stick share a channel with other registered ECC DDR5 modules of different capacities?

OWC recommends matching capacity, speed and manufacturer for optimal performance; mixing ranks or densities may work but is not validated by the supplier.

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