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Two green DDR5 RDIMM sticks without heat spreaders, 288-pin, 256GB kit

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 CL40 288-pin ECC RDIMM memory upgrade

SKU CH-3ASJ-3YY8M

256 GB DDR5 registered ECC RDIMM kit (2×128 GB) at 4800 MT/s CL40, 1.1 V, 288-pin, validated for Supermicro 821/421 GPU SuperServers

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity across two 128GB modules for high-density server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth supports demanding compute tasks
  • ECC registered RDIMM design with 4Rx4 organisation ensures data integrity under load
  • CL40 latency at 1.10V voltage balances responsiveness and power efficiency
  • Validated for Supermicro GPU SuperServer SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT systems

Capacity and Configuration

This kit provides 256GB of DDR5 memory across two 128GB registered DIMMs. It targets administrators upgrading SuperMicro GPU SuperServer platforms such as the SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT.

Registered ECC Architecture

Each module uses a 4Rx4 organisation with on-die ECC and a registered buffer. That combination is the single specification that determines whether the memory will initialise on the qualified SuperMicro motherboards.

Workload Headroom

The 256GB total capacity comfortably supports large virtualisation clusters, in-memory databases and GPU-accelerated compute jobs. Workloads that exceed this address space or require faster than 4800 MT/s data rates will need additional DIMM slots or a higher-speed memory tier.

Punti di forza

  • 256GB total capacity across two 128GB modules for high-density server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth supports demanding compute tasks
  • ECC registered RDIMM design with 4Rx4 organisation ensures data integrity under load
  • CL40 latency at 1.10V voltage balances responsiveness and power efficiency
  • Validated for Supermicro GPU SuperServer SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT systems

Caratteristiche tecniche

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Domande su questo articolo

What does the 4800 speed mean once the modules are installed in a Supermicro server?

The DDR5 4800 rating sets the maximum data rate at 4800 MT/s; the server memory controller will run the kit at that speed or lower depending on the CPU and slot population.

How does the DDR5 interface and PC5-38400 designation affect usable bandwidth?

DDR5 is the only supported memory type; PC5-38400 is the industry name for the 4800 MT/s transfer rate, so peak bandwidth is determined by that rate and the memory controller configuration.

What physical requirements must the server meet to accept these 288-pin RDIMMs?

Each module is a 288-pin DDR5 RDIMM measuring 128GB, 4Rx4 organisation, 1.1V operation, no heat spreader; the board needs DDR5 RDIMM slots with sufficient clearance for the registered design.

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