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Green circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 16GB DDR4 2666 ECC RDIMM 2Rx4 Server Memory

SKU CH-SK47-S09GP

16GB DDR4 2666 ECC registered DIMM with CL19 latency and 1.2V operation for server workloads

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16GB ECC registered memory protects data integrity in servers
  • DDR4 2666MHz PC4-21300 speed handles demanding workloads
  • CL19 latency at 1.20V balances performance with efficiency
  • 2Rx4 dual-rank organisation increases memory density per slot
  • 288-pin DIMM form factor fits standard server motherboards

16GB DDR4 2666 ECC RDIMM for Servers

This 16GB DDR4 2666MHz registered DIMM targets administrators upgrading or repairing enterprise servers and workstations that require error-correcting memory. The module delivers 16GB of capacity in a single 288-pin stick, operating at the standard 1.20V DDR4 voltage for broad platform compatibility.

Registered ECC with 2Rx4 Organization

The defining specification is the registered ECC design with a 2Rx4 rank configuration, which enables the module to work in multi-DIMM server channels that demand registered signalling and error correction. Systems requiring unbuffered non-ECC UDIMMs or a different rank layout will not accept this part, so verifying the motherboard's qualified vendor list is essential before purchase.

Major-Brand Chips and Micron Cross-Reference

The module uses major-brand DRAM chips and is validated as a compatible equivalent for the Micron MTA36ASF2G72PZ-2G6E1 part number, giving buyers a direct cross-reference for procurement lists. No extra software, heatsinks or cables are bundled; the value lies in the component-level quality assurance and the lifetime warranty that covers the memory itself.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $124.99
Cheaper than about 60% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $7.81 per GB
Pricier than about 55% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

What does the DDR4 2666 speed mean for real-world server performance?

The DDR4 2666 rating shows the module transfers data at 2666 MT/s. Actual throughput depends on the CPU memory controller, channel population and BIOS settings, so measured bandwidth will vary by platform.

How does the ECC RDIMM interface affect error correction and capacity limits?

The registered DIMM adds a register between the DRAM and the memory controller, reducing electrical load so the system can support more modules per channel. ECC detects and corrects single-bit errors and detects multi-bit errors, improving data integrity for server workloads.

What physical slot and clearance does this 288-pin module require?

It fits a standard DDR4 DIMM socket with 288 pins and 1.2 V operation. The registered design uses the same keying as unbuffered DDR4 DIMMs, but the system must explicitly support RDIMM; UDIMM-only boards will not accept it.

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