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Green 288-pin DDR4 RDIMM module with black chips, registered ECC server memory

Supermicro

Supermicro MEM-DR464L-HL03-ER32 64GB DDR4 3200 ECC Registered server RAM

SKU CH-Z8F1-QX9DP MPN MEM-DR464L-HL03-ER32

64 GB DDR4 3200 ECC registered RDIMM with CL22 latency and 1.20 V operation

  • Capacity64GB
  • Type288-PIN DDR4 RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.20V
  • ECCYes

Capacity 64GB

Struck-through versions exist but are not stocked here.

  • 64GB capacity supports memory-intensive server workloads
  • DDR4 3200 speed delivers 25600 MT/s data transfer rate
  • ECC registered design detects and corrects memory errors
  • CL22 latency at 1.20V balances performance and efficiency
  • 288-pin 2Rx8 RDIMM form factor fits standard server slots

Capacity and role

This 64 GB DDR4 RDIMM provides registered ECC memory for servers and workstations that require data integrity at scale. The dual-rank 2Rx8 organisation suits multi-socket platforms needing high density per slot.

Thermals and power

Operating at 1.20 V, the module runs within standard DDR4 voltage limits for registered DIMMs. Registered buffering reduces electrical load on the memory controller, helping maintain stable thermals in densely populated chassis.

Sustained load behaviour

ECC circuitry corrects single-bit errors continuously during prolonged workloads, preventing silent data corruption. CL22 latency at 3200 MT/s delivers consistent throughput for memory-bound tasks such as virtualisation and database caching.

Highlights

  • 64GB capacity supports memory-intensive server workloads
  • DDR4 3200 speed delivers 25600 MT/s data transfer rate
  • ECC registered design detects and corrects memory errors
  • CL22 latency at 1.20V balances performance and efficiency
  • 288-pin 2Rx8 RDIMM form factor fits standard server slots

Specifications

BrandSuperMicro
ModelMEM-DR464L-HL03-ER32
Part NumberHMAA8GR7CJR4N-XN
Capacity64GB
Type288-PIN DDR4 RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
FeaturesMemory (Server Memory)
Shipping weight0.09 kg
Package size229 × 165 × 41 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the 288-PIN DDR4 RDIMM module and which notch alignment step is often missed?

Align the single off-centre notch on the 288-PIN DDR4 RDIMM with the slot key, press vertically until both retention clips click, and verify the module sits flush; the step most often missed is confirming both clips have fully engaged.

What maintenance or replacement will the 64GB DDR4 3200 ECC Registered module need over its service life?

No scheduled maintenance is required; replacement is only necessary if a memory test reports uncorrectable ECC errors or the module physically fails.

What thermal or electrical limit appears first when the 1.20V CL22 2Rx8 module runs under sustained load?

The 1.20V operating voltage and CL22 timing define the electrical envelope; sustained load first hits the thermal throttling threshold of the DDR4 3200 specification before any voltage limit.

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