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Green 288-pin DDR4 RDIMM module with black chips no heat spreader

Micron Technology, Inc.

Micron Technology, Inc. 16GB DDR4 2666 CL19 1.2V ECC Registered 2Rx4 Server RAM

SKU CH-B28F-04KSM

16 GB DDR4-2666 CL19 ECC registered 2Rx4 module for server memory upgrades

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCECC Chipkill
  • 16 GB DDR4 2666 CL19 ECC Registered for server reliability
  • 2 V operation reduces power draw in dense deployments
  • 2Rx4 dual-rank layout maximises memory bandwidth per channel
  • 288-pin RDIMM form factor fits standard server DIMM slots
  • 100 % component and module tested to mission-critical standards

16GB DDR4 2666 ECC Registered Server Memory

This 16GB DDR4 module runs at 2666 MT/s with CL19 latency and 1.20V operation. It is a registered DIMM with ECC Chipkill and a 2Rx4 organisation, built for multi-channel server platforms. The 288-pin form factor fits standard DDR4 server slots.

Registered DDR4 limits signal loading

The onboard register buffers address and command signals, allowing larger memory populations per channel than unbuffered DIMMs. ECC Chipkill corrects multi-bit errors to protect data integrity in mission-critical workloads. Maximum capacity and channel population depend on the server platform and processor memory controller.

Upgrades from lower-capacity

Adding these RDIMMs increases installed memory without replacing the CPU or motherboard, provided the platform supports registered ECC DDR4. The jump is worthwhile when virtualisation density, database caching or compute throughput are constrained by current memory capacity. This memory is not for desktop or consumer motherboards that require unbuffered non-ECC DIMMs.

Punti di forza

  • 16 GB DDR4 2666 CL19 ECC Registered for server reliability
  • 2 V operation reduces power draw in dense deployments
  • 2Rx4 dual-rank layout maximises memory bandwidth per channel
  • 288-pin RDIMM form factor fits standard server DIMM slots
  • 100 % component and module tested to mission-critical standards

Caratteristiche tecniche

BrandCrucial
ModelCT16G4RFD4266 (MTA36ASF2G72PZ-2G6E1)
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCECC Chipkill
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitQuad Channel Kit
ChipsetMicron Chipset
Heat SpreaderNo
FeaturesRetail Package

Domande su questo articolo

Should I choose the single 16GB stick or a multi-channel kit?

This listing is a single 16GB module; the supplier title also describes it as a quad-channel kit, so buying four identical sticks will populate four channels on a compatible server board.

What does the 2666 speed rating mean once the module is installed?

The DDR4 2666 rating (PC4-21300) sets the maximum data rate the module can run at; the actual speed will be negotiated by the server's memory controller and may run lower depending on the processor and populated slots.

How does the registered ECC interface affect what I can use this with?

The 288-pin DDR4 registered DIMM with ECC Chipkill requires a server platform that supports registered memory, such as Intel Xeon systems; it will not work in standard desktop motherboards.

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