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Green rectangular DDR4 DIMM with black chips and gold contacts

A-Tech

A-Tech 8GB DDR4 2133 ECC UDIMM 2Rx8 Samsung M391A1G43DB0-CPB Server RAM

SKU CH-R4JJ-49C8H

An 8 GB DDR4 ECC UDIMM running at 2133 MHz with CL15 latency and 1.2 V operation

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • ECC protection guards data integrity with single-bit error correction
  • 2133 MHz DDR4 speed delivers responsive server performance
  • 20 V standard voltage reduces power draw and heat
  • 2Rx8 dual-rank layout increases memory density per slot
  • 288-pin UDIMM form factor fits compatible server motherboards

Server DDR4 ECC upgrade

This A-Tech module adds 8 GB of DDR4 2133 ECC UDIMM memory to compatible servers and workstations. It targets administrators who need error-correcting capacity for stable multi-tasking and virtualisation workloads. The single 288-pin DIMM installs in standard unbuffered DDR4 slots without registration overhead.

Thermals and power profile

Operating at 1.20 V, the module runs at standard DDR4 voltage with no extra cooling requirement. Low-voltage DDR4 keeps power draw modest inside dense chassis where airflow is limited. Passive operation means zero acoustic contribution in rack or tower environments.

Build and daily handling

Major-brand chips on a 2Rx8 layout deliver verified reliability through A-Tech testing procedures. The 288-pin gold contacts resist oxidation during repeated seatings for maintenance cycles. ECC UDIMM format fits mainstream server boards that accept unbuffered DIMMs but cannot use registered or load-reduced modules. Buyers who need registered ECC or higher-density ranks must select a different module type.

How it compares

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

Price $119.99
Cheaper than about 62% 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 $15.00 per GB
Pricier than about 75% 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 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

How do I install this 288-pin DDR4 UDIMM and which step is commonly missed?

Align the notch on the module with the slot key, press down firmly until both side clips snap shut, then verify the system detects the full 8 GB at 2133 MHz in BIOS.

What maintenance or replacement will this ECC UDIMM need over time?

No routine maintenance is required; if a correctable error count rises or the module fails POST, replace the stick — ECC cannot repair a failed DRAM chip.

What limit appears first when this CL15 1.20 V module runs sustained workloads?

The 2133 MT/s data rate and CL15 latency set the throughput ceiling; sustained loads will hit that bandwidth limit before voltage or thermal throttling becomes a factor.

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