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Four green DDR5 RDIMM sticks, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5-4800 ECC RDIMM 256GB (4×64GB) CL40 1.1V 2Rx4 Supermicro H13SRH

SKU CH-X9RQ-5TXF4

A 256 GB (4 × 64 GB) DDR5-4800 ECC registered RDIMM kit at CL40 1.1 V 2Rx4, validated for the Supermicro H13SRH motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 18 more

Speed 4800MHz

  • Exact-match 256GB DDR5-4800 kit runs at rated speed
  • Four 64GB modules deliver full 256GB capacity
  • Registered ECC design prevents silent data corruption
  • 1V operation matches server memory controller specs
  • Verified fitment for Supermicro H13SRH motherboard

Exact DDR5-4800 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5-4800 registered ECC modules built to the Supermicro H13SRH memory controller specification. Each module runs at 1.1V with CL40 timing and 2Rx4 organisation for full-capacity recognition.

Straightforward server installation

The 288-pin RDIMM form factor matches the board slots exactly; no UDIMM or SODIMM confusion is possible. Population order and maximum supported capacity must still be checked in the system manual before fitting the modules.

For H13SRH servers needing 256GB ECC

Suits administrators upgrading a Supermicro H13SRH to the full 256GB registered ECC configuration. Not for boards that require UDIMM, SODIMM, non-ECC, or a different DDR generation.

How it compares

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

Price $6,126.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $23.93 per GB
Pricier than about 69% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-924K4
Total capacity256 GB (4 × 64 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
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the 256GB kit is running at DDR5-4800 with CL40 after installing it in my Supermicro H13SRH?

Check the BIOS or UEFI memory information screen; it should report 4800 MT/s, CL40 timings, 1.1 V, and 256 GB total across four 64 GB registered ECC modules.

What does the package contain and what extra parts are required for installation?

The box includes four 64 GB DDR5-4800 ECC RDIMMs (2Rx4, 1.1 V, CL40); no cables, brackets or additional hardware are supplied — only the DIMMs themselves.

Which capacity or version of this NEMIX RAM kit should I choose for the H13SRH?

This specific part number MR38400-924K4 is a 256 GB (4 × 64 GB) DDR5-4800 registered ECC kit validated for the Supermicro H13SRH; select it when you need the full four-DIMM population at that speed and rank.

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