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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

Crucial

Crucial MTA18ASF4G72PDZ-3G2R 32GB DDR4 3200 CL22 2Rx8 RDIMM server RAM

SKU CH-Z5HB-J0TC4 MPN MTA18ASF4G72PDZ-3G2R

32 GB DDR4 3200 registered ECC parity DIMM with dual-rank 2Rx8 organisation and CL22 latency for server workloads

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Memory timings22-22-22
  • Rated voltage1.2 V
  • ECC supportParity
  • ECC parity guards data integrity against single-bit errors
  • Registered buffer stabilises heavy server workloads
  • Dual-rank design boosts throughput on multi-channel platforms
  • DDR4 3200 speed delivers high bandwidth at 1.2 V
  • 32 GB capacity supports large virtualised environments

32GB RDIMM for Server Workloads

This 32GB DDR4 3200 RDIMM module provides registered memory with ECC parity for servers and workstations. The dual-rank 2Rx8 organisation and CL22 timing deliver 25600 MT/s bandwidth at 1.20V. A register chip controls data flow to support dense memory configurations in multi-socket systems.

Suited to Registered ECC Platforms Only

This module fits systems that require registered DDR4 DIMMs with parity ECC. It will not work in platforms that accept only unbuffered UDIMMs or that lack support for registered memory. Buyers needing non-ECC memory or consumer SO-DIMM form factors must choose a different product.

Registered RDIMM Architecture

The on-module register buffers address and command signals, reducing electrical load on the memory controller. This registered design is the single specification that determines compatibility with server chipsets that mandate registered DIMMs.

How it compares

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

Price $365.99
Pricier than about 64% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $11.44 per GB
Pricier than about 71% of the 6,064 comparable items (median $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 nameMicron
Part numberMTA18ASF4G72PDZ-3G2R
Total capacity32 GB
Product typeRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
Memory timings22-22-22
ECC supportParity
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.45 kg
Package size226 × 157 × 43 mm

Questions about this item

What motherboard feature must my server have to use this 32GB RDIMM?

The motherboard must provide a DDR4 RDIMM slot that accepts registered modules with ECC parity support at 1.20V.

How will this CL22 3200 module behave if I keep slower DDR4 RDIMMs in other slots?

The memory controller will run all installed RDIMMs at the speed of the slowest module, so this stick will downclock to match the older ones.

How can I confirm the module is running as 2Rx8 registered ECC after installation?

Check the BIOS memory information or use a tool such as dmidecode to verify 32GB capacity, 2Rx8 organization, registered type and ECC parity enabled.

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