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Green printed circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech Supermicro Certified 16GB DDR4 2666MHz CL19 1Rx4 ECC Registered RDIMM 288-Pin Server RAM

SKU CH-A8QN-D9VSW

16 GB DDR4 2666 MHz CL19 ECC registered RDIMM with Samsung chips, Supermicro certified for server reliability

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • Supermicro certified for guaranteed server compatibility
  • Samsung chipset delivers reliable DDR4 2666MHz performance
  • ECC registered design protects data integrity
  • 16GB single-rank module at 1.2V standard voltage
  • 288-pin RDIMM fits standard server memory slots

A-Tech 16GB DDR4 2666MHz ECC RDIMM

This A-Tech module is a 16GB DDR4 2666MHz CL19 registered DIMM built on Samsung chips and certified for Supermicro platforms. It operates at 1.20V and uses a 1Rx4 single-rank layout across 288 pins. The part number MEM-DR416LA-ER26 matches the Samsung M393A2K40BB2-CTD specification.

Suited for Supermicro DDR4 servers needing ECC

It fits systems that require registered ECC RDIMMs at the PC4-21300 speed grade. Builders using unbuffered UDIMM slots, desktop chipsets, or platforms limited to lower voltages should look elsewhere. The single 16GB stick also leaves fewer slots free than a multi-module kit would.

16GB capacity for virtualisation

The module handles typical hypervisor hosts, file servers, and mid-range database workloads that fit within a single DIMM per channel. Workloads demanding higher per-channel density or speeds beyond 2666MHz will exhaust headroom and require faster or larger modules.

Highlights

  • Supermicro certified for guaranteed server compatibility
  • Samsung chipset delivers reliable DDR4 2666MHz performance
  • ECC registered design protects data integrity
  • 16GB single-rank module at 1.2V standard voltage
  • 288-pin RDIMM fits standard server memory slots

Specifications

BrandSuperMicro
SeriesSupermicro Certified
ModelMEM-DR416LA-ER26
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetSamsung Chipset
FeaturesSupermicro Certified MEM-DR416LA-ER26 (M393A2K40BB2-CTD)

Questions about this item

What server motherboard slot and memory type are required for this 288-pin DDR4 RDIMM?

The module fits a standard 288-pin DDR4 RDIMM slot on a server or workstation motherboard that supports registered ECC memory.

Can this single-rank 1Rx4 registered ECC module be mixed with dual-rank or unbuffered DIMMs in the same system?

Mixing ranks or buffer types is not recommended; the motherboard manual should confirm supported population rules for registered ECC RDIMMs.

How can I verify the module is running at 2666 MHz with CL19 timings after installation?

Check the BIOS memory information screen or use a system utility such as CPU-Z to confirm the reported speed of 2666 MHz and CAS latency of 19.

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