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Green rectangular DDR4 DIMM with black memory chips on both sides, gold edge connector, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM2048722666ECCNR 16GB DDR4 2666 ECC Unregistered DIMM memory upgrade

SKU CH-AZMC-KQXA4

16 GB DDR4-2666 ECC unregistered DIMM for Dell PowerEdge T140, T340 and T40 servers

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 16 GB DDR4 2666 MHz ECC for Dell PowerEdge servers
  • CL19 latency at 1.2 V keeps error-corrected data flowing
  • Unregistered 288-pin DIMM fits T140, T340 and T40 slots
  • Single 16 GB module scales systems up to 64 GB
  • Major-brand chips backed by lifetime warranty from CMS

Dell PowerEdge T140/T340/T40 compatible memory

This 16 GB DDR4 ECC unregistered DIMM is built for Dell PowerEdge T140, T340 and T40 servers. It installs in a 288-pin slot and runs at 2666 MHz with CL19 timing at 1.2 V. The module targets administrators who need reliable error-correcting memory for entry-level tower servers.

Upgrade from non-ECC or smaller capacity kits

The stick replaces standard non-ECC modules or lower-capacity DIMMs to add single-bit error correction and increase total system memory toward the 64 GB platform maximum across four slots. The jump is worth it when workloads demand data integrity and the server currently runs with unprotected memory or has free DIMM slots for expansion.

Sustained load behaviour without heat spreader

Under continuous operation the module operates at its rated 1.2 V and CL19 latency without a heat spreader, relying on chassis airflow for cooling. Faster memory will clock down to match the processor’s supported speed, so sustained throughput stays consistent at the platform’s native 2666 MHz rather than peaking higher in short bursts.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $58.99
Cheaper than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $3.69 per GB
Cheaper than about 86% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048722666ECCNR
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportYes
Buffer typeUnregistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell Poweredge T140, Poweredge T340, Poweredge T40
In the box
Included items1 Memory RAM Stick

Questions about this item

Will this 288-pin DDR4 DIMM fit the four memory slots in my Dell PowerEdge T140, T340 or T40?

Yes. The module is a standard 288-pin DDR4 DIMM and the listed servers each provide four DIMM slots supporting up to 64 GB total.

What is the correct way to seat this unregistered ECC module, and what step do people often miss?

Align the notch with the slot key, press straight down until both side latches click, then verify in BIOS that the 2666 MHz speed and ECC function are recognised.

When will this 16 GB stick need replacement, and what should I watch for?

The limited lifetime warranty covers defects; replace the module if memory diagnostics report correctable ECC errors increasing over time or if the system fails to POST with this stick installed.

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