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Four green DDR5 server memory modules with gold contacts and black heat spreaders

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM Server Memory Kit

SKU CH-948N-S2DHN

Quad-channel 512 GB DDR5 kit with ECC registered modules at 4800 MHz and 1.1 V

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity from four 128 GB modules for large-scale server workloads
  • DDR5 4800 MHz speed rated at PC5-38400 for high-throughput data processing
  • ECC registered design with 2Rx4 organisation detects and corrects memory errors automatically
  • Low 1.1 V operating voltage reduces power draw in dense server configurations
  • Built with major OEM Samsung, Micron or Hynix DRAM chips for enterprise-grade reliability

512GB DDR5 4800 ECC RDIMM Kit

This 512GB kit contains four 128GB DDR5 4800MHz PC5-38400 registered DIMMs built with major OEM DRAM. Each module runs at 1.1V with a CAS latency of 40 and a 2Rx4 organisation. The 288-pin ECC RDIMMs are designed for server platforms that require registered memory with error correction.

Suited for multi-socket servers needing maximum

The kit targets administrators upgrading or populating DDR5 server boards that support 128GB RDIMMs per slot and require ECC protection. Workstations or desktops that accept only unbuffered non-ECC DDR5 cannot use these modules. Buyers who need lower-density sticks or unbuffered memory should look at different configurations.

128GB per module registered density

Each of the four DIMMs provides 128GB in a 2Rx4 registered layout, which determines whether the motherboard's memory controller and BIOS can address the full 512GB. Verify that the platform qualifies 128GB RDIMMs at DDR5 4800 before purchasing.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $16,892.99
Pricier than about 92% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
CAS latency 40
Typical for this category: the median of 439 items is 40.
Price per GB $32.99 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Model namePart#: MR38400-724K4-SM-AS-1115S-FWTRT
Part numberPart#: MR38400-724K4-SM-AS-1115S-FWTRT
Total capacity512 GB (4 × 128 GB)
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.1 V

Questions about this item

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

The kit runs at DDR5 4800 with CAS latency 40, giving each module a PC5-38400 data rate; the server memory controller will operate all four at that speed if the platform supports it.

How does the DDR5 PC5-38400 interface limit real-world throughput?

PC5-38400 defines the maximum theoretical bandwidth; actual throughput depends on the server's memory controller, channel population and workload.

What physical slot and clearance do the 288-pin RDIMMs need?

Each 128 GB module is a 288-pin ECC Registered DIMM requiring a DDR5 RDIMM slot and standard DIMM height clearance in the server chassis.

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