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Green rectangular DDR4 server memory module with gold contacts and black chips

A-Tech

A-Tech 8GB DDR4 2666MHz ECC RDIMM 2Rx8 CL19 1.2V Server Memory

SKU CH-3YD0-XP9ZR

An 8 GB DDR4 2666 MHz ECC registered DIMM with CL19 latency and 1.2 V operation for server upgrades

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC RDIMM protects data integrity in servers
  • 2666 MHz DDR4 speed handles heavy workloads
  • 2 V operation reduces power draw
  • 288-pin DIMM fits standard server slots
  • CL19 latency balances timing and stability

Server-ready 8 GB DDR4 module

This A-Tech registered DIMM delivers 8 GB of DDR4 2666 MHz memory with ECC error correction. The 2Rx8 organisation and 1.2 V operation suit enterprise servers and workstations that require registered modules. It plugs into standard 288-pin DDR4 slots.

Replaces Hynix HMA41GR7BJR8N-VK

The module is a direct equivalent for the Hynix HMA41GR7BJR8N-VK part number. The upgrade is worthwhile when a system currently runs below the PC4-21300 speed grade or lacks ECC protection for data integrity. CL19 latency matches the original specification.

Fits registered DDR4 platforms

Installation requires a motherboard that supports registered ECC DDR4 DIMMs at 2666 MHz. The single-module design leaves additional slots free for future capacity expansion. Verify the platform's qualified-vendor list before purchase to ensure compatibility.

How it compares

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

Price $42.99
Cheaper than about 86% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $5.37 per GB
Cheaper than about 70% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity8 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 288-pin DDR4 DIMM fit my server motherboard?

The module uses the standard 288-pin DDR4 DIMM form factor, so it fits any server or workstation board that accepts DDR4 registered ECC memory.

What is the correct way to seat this registered ECC module, and what step is often missed?

Align the notch with the slot key, press firmly until both side latches click, then verify the system detects the full 8 GB capacity at 2666 MHz in BIOS.

When should I consider replacing this 8 GB DDR4 2666 module?

Replace it if memory diagnostics report correctable or uncorrectable ECC errors, if the system fails to POST with the module installed, or when upgrading to a higher-capacity configuration.

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