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Green circuit board DDR4 memory module with black chips and gold edge connectors

A-Tech

A-Tech 16GB DDR4 2666 ECC RDIMM 2Rx8 for IBM-Lenovo 01AG618 01DE973 4X77A08599 4X77A08610 7X77A01303

SKU CH-A256-RSHHB

16 GB DDR4 2666 MHz ECC registered DIMM with CL19 latency and 1.20 V for compatible IBM-Lenovo servers

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16GB DDR4 2666 CL19 ECC RDIMM expands server capacity
  • 2Rx8 registered design with major-brand chips ensures data integrity
  • 2V DDR4 standard voltage lowers power draw
  • Tested to stringent quality standards for dependable operation
  • Direct replacement for IBM-Lenovo 01AG618 01DE973 4X77A08599 4X77A08610 7X77A01303

Server DDR4 module for IBM-Lenovo systems

This 16GB ECC RDIMM operates at DDR4 2666 with CL19 timing and 1.20V. It is built for servers and workstations that require registered memory with error correction. The single module fits 288-pin DIMM slots and uses major-brand chips.

Capacity and headroom for registered workloads

The 16GB 2Rx8 module adds substantial memory for virtualisation, databases and multi-user applications. Registered buffering reduces electrical load on the memory controller, allowing larger configurations. Systems limited to lower speeds or non-ECC memory cannot use this module.

Thermals noise and power draw in normal use

Standard 1.20V DDR4 voltage keeps power draw low under typical server loads. The module runs passively without a fan, so it adds no audible noise. Thermal output remains within normal DDR4 limits for registered DIMMs in adequately ventilated chassis.

How it compares

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

Price $139.99
Cheaper than about 58% 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 $8.75 per GB
Pricier than about 62% 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 rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Will this 2666 MHz DDR4 2Rx8 ECC RDIMM run alongside my existing DDR4 ECC RDIMM modules?

The module operates at DDR4 2666 (PC4-21300) with CL19 latency and 1.20 V. When mixed with slower DDR4 ECC RDIMMs the system will clock all modules to the lowest common speed and timings.

How can I confirm the 16 GB 2Rx8 module is recognised and running with ECC after installation?

Check the POST memory count or BIOS memory information screen — it should show 16 GB per module, 2666 MHz, and ECC enabled. Operating system tools such as dmidecode or CPU-Z will also report registered ECC operation.

Does the single 288-pin DIMM ship alone or with any extra parts?

The box contains one 16 GB DDR4 2666 ECC RDIMM 2Rx8 module only. No brackets, cables, heat spreaders or additional hardware are included.

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