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Green 288-pin DDR4 DIMM module with black chips and silver heatsink

Crucial

Crucial MTA36ASF8G72PZ3G2E1R 64GB DDR4 server RAM

SKU CH-XFHD-55C50 MPN MTA36ASF8G72PZ3G2E1R

64 GB DDR4 ECC registered server memory running at 3200 MHz with CL22 latency

  • Total capacity64 GB
  • CAS latencyCL22
  • 64 GB capacity supports memory-intensive server workloads
  • DDR4-3200 speed delivers 25600 MT/s data transfer
  • ECC error checking protects data integrity in critical applications
  • Registered signal processing improves stability at high densities
  • 20 V operation reduces power consumption per module

64 GB DDR4 registered ECC module

This 64 GB DDR4 module is built for servers and workstations that require error-correcting code memory. It operates at 1.20 V with a CAS latency of CL22 and uses a 288-pin DIMM form factor. The dual-rank design supports high-density configurations in multi-socket platforms.

Sustained throughput with registered signalling

Registered signal processing adds a clock cycle of buffering to stabilise the command bus under continuous heavy load. ECC corrects single-bit errors on the fly, preventing data corruption during long compute runs. The module runs at the standard DDR4-3200/PC4-25600 rate without exceeding the 1.20 V specification.

DDR4-3200 bus ceiling and dual-rank density

The DDR4-3200 interface caps peak bandwidth at the PC4-25600 limit, so workloads that scale beyond this throughput need faster memory generations. Dual-rank organisation increases capacity per slot but can restrict maximum populated DIMM speeds on some platforms. Systems requiring higher frequencies or lower latencies must move to a newer memory standard.

How it compares

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

Price $120.99
Cheaper than about 61% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $1.89 per GB
Cheaper than about 94% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Total capacity64 GB
Memory
CAS latencyCL22
Size & build
Shipping weight0.45 kg
Package size178 × 57 × 6 mm

Questions about this item

Does the 1.20 V DDR4-3200 module generate noticeably more heat or fan noise when running continuously at full load?

Operating at the standard 1.20 V DDR4 voltage, this registered ECC DIMM is designed for sustained server workloads without exceeding typical thermal limits; actual case airflow and CPU cooler capacity determine audible fan levels.

Must the motherboard already support registered ECC DDR4 DIMMs with a 288-pin interface for this stick to function?

Yes — the module requires a server-class platform that accepts registered, ECC-enabled DDR4 memory in the standard 288-pin DIMM form factor; consumer boards without those features will not recognise it.

Can this dual-rank CL22 3200 MHz module share channels with slower CL22 DDR4 DIMMs already installed?

When mixed, all DIMMs on a channel run at the lowest common speed and loosest timings; the system will down-clock this 3200 MHz stick to match the slower modules.

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