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Green low-profile DDR4 server memory module with black chips and gold contacts

Supermicro

Supermicro MEM-DR464L-SL01-LR21 64GB DDR4-2133 4Rx4 LP ECC LRDIMM server RAM

SKU CH-BSW4-GT7QA

64GB DDR4-2133 ECC LRDIMM module with 4Rx4 organisation for high-density server memory configurations

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • 64 GB capacity supports large virtualised workloads
  • DDR4-2133 speed delivers 17000 MB/s bandwidth
  • Load-reduced design reduces electrical load on the memory bus
  • ECC protection detects and corrects single-bit errors
  • 20 V operation lowers power draw per module

64 GB DDR4 server memory

The Supermicro MEM-DR464L-SL01-LR21 is a 64 GB DDR4-2133 LRDIMM built for enterprise servers that require very high memory density per slot. Its load-reduced design and 4Rx4 organisation let administrators reach large total capacities without populating every available DIMM socket. ECC protection and registered signalling are included for data integrity in mission-critical workloads.

Low-voltage operation and thermal profile

Each module runs at 1.20 V, which is the standard DDR4 voltage, keeping power draw predictable in densely populated chassis. The load-reduced buffer reduces electrical loading on the memory bus, helping the platform maintain stable speeds across many ranks. No specific acoustic or thermal ratings are provided, so cooling should follow the server vendor's general guidelines for high-density LRDIMM configurations.

288-pin DDR4 form factor for compatible platforms

The 288-pin DDR4 SDRAM interface fits motherboards that support PC4-17000 LRDIMMs with 4Rx4 organisation and ECC. Builders must verify that the target platform's memory controller and BIOS recognise this rank configuration and capacity. The low-profile height aids installation in space-constrained 1U or blade systems, but exact clearance requirements depend on the specific chassis and heatsink layout.

Points forts

  • 64 GB capacity supports large virtualised workloads
  • DDR4-2133 speed delivers 17000 MB/s bandwidth
  • Load-reduced design reduces electrical load on the memory bus
  • ECC protection detects and corrects single-bit errors
  • 20 V operation lowers power draw per module

Caractéristiques

BrandSuperMicro
ModelMEM-DR464L-SL01-LR21
Capacity64GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4

Questions sur cet article

How do I install this 288-Pin DDR4 LRDIMM and which step is often missed?

Align the notch with the slot key, press firmly until both clips lock, then verify the BIOS recognises all 64GB at 2133 MT/s — the step many skip is enabling the correct memory profile in BIOS.

What maintenance or replacement will this 4Rx4 ECC module need over time?

No routine maintenance is required; if a correctable error count rises, the module should be replaced, otherwise it runs for the server’s service life.

What limit appears first when this 1.20V LRDIMM runs sustained workloads?

The DDR4-2133 bandwidth ceiling is reached before thermal throttling on the load-reduced design.

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