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Green 288-pin DDR5 RDIMM module with black Samsung chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 ECC RDIMM CL40 1Rx8 1.1V 288-pin Samsung M321R2GA3BB0-CQK memory upgrade

SKU CH-RDWA-FJHF1

16 GB DDR5 ECC registered DIMM running at 4800 MHz with CL40 latency for Samsung servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection ensures data integrity for critical workloads
  • Registered design improves signal stability in multi-module servers
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • Low 1.10V voltage reduces power draw per module
  • Samsung major-OEM chips provide enterprise-grade component quality

16 GB DDR5 ECC RDIMM for Samsung servers

This 16 GB DDR5 4800 module is built for Samsung server and workstation platforms that require registered ECC memory. It uses a 1Rx8 organisation with Samsung-sourced DRAM and runs at the standard 1.1 V. The RDIMM form factor fits 288-pin DDR5 slots in compatible enterprise systems.

Registered DDR5 limits capacity per channel

Registered DDR5 RDIMMs add a buffer that reduces electrical load on the memory controller, allowing higher total capacities than unbuffered modules. The trade-off is one extra clock cycle of latency compared with UDIMMs. Systems must support registered ECC memory; consumer desktop chipsets will not accept this module.

CL40 latency at DDR5 4800 sets the timing budget

The module operates at CAS latency 40 (CL40) at the 4800 MT/s data rate, defining the minimum response time for memory requests. Workloads sensitive to latency should verify this timing against the platform's memory controller requirements before purchase.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $442.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.69 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSamsung Server/Workstation Compatible Series Memory
Model nameSamsung DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K1
Total capacity16 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSamsung
In the box
Included items16 GB (1 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Is this 16GB DDR5-4800 module available in other capacities or ranks?

The listing shows a single 16GB 1Rx8 DDR5-4800 ECC RDIMM; no other capacities or rank options are included in this product.

What does the DDR5-4800 (PC5-38400) speed rating deliver in a server board?

The module operates at 4800 MT/s with CL40 latency at 1.1V, giving the rated DDR5-4800 throughput when the platform runs memory at that speed.

Will this 288-pin ECC RDIMM work in a standard desktop motherboard?

No, the 288-pin DDR5 RDIMM form factor with registered ECC requires a server or workstation board that supports registered DDR5 memory.

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