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Green circuit board with black memory chips and gold edge connector

Micron

Micron MTA9ASF2G72AZ-3G2F1R 16GB DDR4 ECC UDIMM 3200 CL22 server RAM

SKU CH-FSE1-Z67PE MPN MTA9ASF2G72AZ-3G2F1R

16 GB DDR4 ECC UDIMM server memory running at 3200 MT/s with CL22 latency

  • ECC protection safeguards data integrity in critical workloads
  • 16 GB capacity expands virtualization density per server
  • 3200 MT/s speed reduces AI and ML cycle times
  • CL22 latency keeps applications responsive in memory
  • JEDEC enterprise-class testing ensures reliable server operation

16 GB DDR4 ECC UDIMM for servers

This 16 GB DDR4 ECC UDIMM is built for server and workstation platforms that require error-correcting memory. It helps expand virtualization capacity and lower the cycle time for AI and ML workloads while keeping the entire application in memory. The module is validated to JEDEC enterprise-class standards for reliable operation.

ECC UDIMM with CL22 latency

The single specification that determines fit is the ECC UDIMM form factor combined with CL22 CAS latency at 3200 MT/s. Only systems designed for unbuffered ECC DDR4 at this timing will accept the module. Builders using registered DIMMs, non-ECC UDIMMs or different latency targets must select a different part.

Standard DDR4 thermals and power

As a standard DDR4 UDIMM the module runs within normal JEDEC voltage and temperature limits for server memory. No additional cooling beyond typical chassis airflow is required and acoustic impact is negligible. Power draw remains consistent with other 16 GB DDR4 ECC UDIMMs operating at 3200 MT/s.

How it compares

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

Price $481.99
Pricier than about 70% of the 6,523 comparable items (median $188.99).

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 nameCrucial
Size & build
Shipping weight0.45 kg
Package size25 × 25 × 25 mm

Questions about this item

What does the 3200 rating mean for real-world server workloads?

The module runs at 3200 MT/s, so data moves between the CPU and memory at that peak rate; actual throughput depends on the platform's memory controller and how many channels are populated.

How does the DDR4 ECC UDIMM interface limit performance?

As an unbuffered DDR4 ECC DIMM it plugs straight into the CPU's memory channels without a register, giving lower latency than registered DIMMs but capping maximum capacity per channel.

What physical slot and keying does this 16 GB stick need?

It fits a standard 288-pin DDR4 UDIMM slot with the single centre key notch; the 72-bit width includes the ECC bits, so the motherboard must support ECC unbuffered memory.

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