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Green rectangular DDR4 DIMM with black chips and gold contacts

A-Tech

A-Tech 8GB DDR4 2666 ECC RDIMM 1Rx8 CL19 1.2V Server Memory

SKU CH-4ZSY-31VDX

An 8 GB DDR4-2666 registered ECC module with CL19 latency and 1.2 V operation for server workloads

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 8GB ECC registered capacity supports heavy server workloads
  • DDR4 2666MHz speed delivers 21300 MT/s data throughput
  • CL19 latency at 1.2V balances responsiveness with power efficiency
  • 1Rx8 single-rank organisation simplifies memory controller scheduling
  • 288-pin DDR4 DIMM form factor fits standard server slots

Server DDR4 ECC RDIMM module

This 8 GB registered DIMM runs at DDR4 2666 with CL19 timing and 1.20 V. It targets administrators upgrading or repairing server and workstation platforms that require error-correcting memory.

Equivalent to Kingston KSM26RS8/8MRR

The module is validated as a direct replacement for that Kingston part number, simplifying procurement when the original SKU is unavailable. Major-brand chips and registered buffering maintain signal integrity in multi-DIMM configurations.

Verify platform support for registered ECC DDR4

Confirm the motherboard or system accepts 288-pin registered ECC DIMMs at this speed and rank before ordering. Consumer desktop boards and laptops typically do not support registered memory.

How it compares

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

Price $57.99
Cheaper than about 82% 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 $7.25 per GB
Typical for this category: the median of 6,064 items is $7.25 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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 rank1Rx8
Power
Rated voltage1.2 V

Questions about this item

Will the registered DIMM require any firmware updates or battery replacements over its service life?

No firmware updates or battery replacements are needed; the module is a passive DDR4 component that operates at 1.20V and is validated for continuous server workloads.

What thermal limit appears first when the module runs at 2666 MHz under sustained load?

The JEDEC-rated 1.2V operating voltage is the primary constraint; exceeding it would breach the DDR4 specification before any other thermal threshold is reached.

How much heat and power does the 1Rx8 registered module draw during all-day operation?

At the standard 1.2V DDR4 voltage the 8GB stick draws minimal power and produces low heat, typical for a single-rank registered DIMM in a 288-pin slot.

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