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Green circuit board with black chips low profile DDR4 memory module

OWC

OWC 16GB DDR4 2666 PC4-21300 CL19 2Rx8 VLP 288-pin 1.2V ECC UDIMM memory upgrade

SKU CH-45XR-C11WP

16GB DDR4 2666 ECC VLP UDIMM for Supermicro 5019C servers, CL19 1.2V 2Rx8 JEDEC compliant

  • Capacity16GB
  • Type288-Pin DDR4 ECC VLP UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16 GB DDR4 2666 ECC UDIMM adds reliable capacity for Supermicro SuperServer 5019C series
  • CL19 latency at 1.2 V delivers stable throughput for server workloads
  • 2Rx8 288-pin VLP form factor fits dense chassis without height conflicts
  • JEDEC and RoHS compliant module ensures warranty-safe upgrade path
  • Single 16 GB stick simplifies installation for DIY memory expansion

Targeted server memory upgrade

This 16GB DDR4 2666 module is built for the Supermicro SuperServer 5019C series, including the 5019C-L, 5019C-M, 5019C-M4L, 5019C-MR and 5019C-WR. It delivers 16GB of ECC unbuffered memory in a single 288-pin VLP UDIMM. The stick runs at 1.2V with a CL19 latency and a 2Rx8 rank configuration. It is a new, JEDEC-standard component validated for those specific platforms.

Replacing lower-capacity or non-ECC DIMMs

The upgrade replaces smaller DDR4 modules or non-ECC sticks that limit multitasking capacity and error correction in these servers. Moving to a 16GB ECC module adds density and data integrity in one step. The jump is worth it when the workload demands more simultaneous threads or when the system currently reports correctable memory errors that ECC can resolve.

Suits administrators expanding 5019C memory

This module suits IT teams adding capacity to the listed SuperServer models where a VLP form factor and ECC are required. Builders needing registered DIMMs, higher speeds than 2666, or capacities beyond 16GB per slot should look elsewhere. Systems outside the 5019C-L, 5019C-M, 5019C-M4L, 5019C-MR and 5019C-WR range are not supported by this specific part.

Puntos fuertes

  • 16 GB DDR4 2666 ECC UDIMM adds reliable capacity for Supermicro SuperServer 5019C series
  • CL19 latency at 1.2 V delivers stable throughput for server workloads
  • 2Rx8 288-pin VLP form factor fits dense chassis without height conflicts
  • JEDEC and RoHS compliant module ensures warranty-safe upgrade path
  • Single 16 GB stick simplifies installation for DIY memory expansion

Especificaciones

BrandOWC
Part Number2E6V42R816GB
Capacity16GB
Type288-Pin DDR4 ECC VLP UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSupermicro SuperServer 5019C-L
Supermicro SuperServer 5019C-M
Supermicro SuperServer 5019C-M4L
Supermicro SuperServer 5019C-MR
Supermicro SuperServer 5019C-WR

Preguntas sobre este artículo

Does the 288-pin VLP module fit the memory slots in a Supermicro SuperServer 5019C-MR?

Yes, the 288-pin DDR4 VLP UDIMM is built to the exact JEDEC form factor required by the 5019C series chassis, so it seats in the standard DIMM sockets without clearance issues.

What is the correct orientation step when installing this ECC UDIMM, and what mistake should I avoid?

Align the single key notch on the module with the slot key, press straight down until both retention clips click, and do not force the module at an angle or seat only one side first.

When should I plan to replace this 16GB DDR4 2666 CL19 stick?

Replace it only if memory diagnostics report correctable ECC errors that become uncorrectable, or if a system upgrade requires higher capacity or a different speed grade.

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