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Four green DDR5 RDIMM sticks without heat spreaders, 64GB total

NEMIX RAM

NEMIX RAM 64GB 4x16GB DDR5 4800 CL40 ECC RDIMM ASRock TRX50 WS

SKU CH-C747-YBCZN

64 GB kit of four 16 GB DDR5 4800 CL40 ECC registered DIMMs at 1.1 V for ASRock TRX50 WS workstations

  • Capacity64GB (4 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V

Capacity 64GB 4X16GB

  • 64 GB total capacity with four 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for server-grade data integrity
  • CL40 CAS latency at 1.1 V operating voltage
  • 288-pin DDR5 RDIMM validated for ASRock TRX50 WS

Capacity and Target Use

This kit provides 64GB of DDR5 ECC registered memory in four 16GB modules. It is built for the ASRock TRX50 WS workstation motherboard where registered DIMMs are required. Systems that need unbuffered memory or non-ECC modules cannot use this kit.

Decisive Specification

The modules run at DDR5 4800 with CL40 latency at 1.1V and use a 1Rx8 organisation. Registered ECC operation is the single trait that determines compatibility; the motherboard must support registered DIMMs for this kit to function.

Installation Notes

The 288-pin RDIMMs install like standard DIMMs but the motherboard manual must be followed for population order and BIOS settings. A common issue is leaving registered ECC disabled in firmware, which prevents the system from posting.

Highlights

  • 64 GB total capacity with four 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for server-grade data integrity
  • CL40 CAS latency at 1.1 V operating voltage
  • 288-pin DDR5 RDIMM validated for ASRock TRX50 WS

Specifications

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K4
Capacity64GB (4 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASRock
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content64GB (4X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

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Questions about this item

What does the 4800 MT/s rating mean for real-world throughput on the ASRock TRX50 WS?

The kit runs at DDR5 4800, which equals PC5 38400 bandwidth. With four 16 GB modules populating all channels, the platform can sustain that peak transfer rate across workloads that keep the memory bus saturated.

How does the registered ECC design affect compatibility with the TRX50 WS memory controller?

Each module is a 288-pin DDR5 RDIMM with on-die ECC and a register buffer. The TRX50 WS chipset requires registered ECC DIMMs, so this kit matches the electrical and protocol expectations of the motherboard's memory controller.

What physical clearance do the bare 1Rx8 modules need inside a workstation chassis?

The sticks are standard-height 288-pin DDR5 RDIMMs without heat spreaders. They occupy four adjacent DIMM slots and only require the usual vertical clearance for the latch mechanism and any CPU cooler overhang.

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