We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB 2x128GB DDR5 4800 ECC RDIMM 2Rx4 CL40 1.1V Supermicro H13SSH-E memory upgrade

SKU CH-5NBM-YKJMF

A 256 GB DDR5 kit of two 128 GB registered ECC modules at 4800 MHz with CL40 latency and 1.1 V, built for the Supermicro H13SSH-E motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 30 more
  • 256 GB capacity with two 128 GB modules for full server utilisation
  • DDR5 4800 speed rated at PC5-38400 for rated throughput
  • Registered ECC RDIMM with 2Rx4 organisation for stable fully-populated operation
  • CL40 latency at 1.1 V matching the memory controller specification
  • Verified fitment for Supermicro H13SSH-E motherboard 288-pin slots

Capacity and form factor

This NEMIX RAM kit provides 256 GB of DDR5 memory across two 128 GB modules in a 288-pin RDIMM form factor. The modules run at 4800 MT/s with a CAS latency of 40 and operate at 1.1 V. They are registered and include ECC for error correction.

Suitable for Supermicro H13SSH-E servers

The kit is validated for the Supermicro H13SSH-E motherboard and matches the board's requirement for registered DDR5 DIMMs. It is not suitable for systems that accept only unbuffered UDIMMs or SODIMMs. Builders needing a different capacity or rank configuration should verify their platform's qualified vendor list before ordering.

Registered ECC architecture

The registered design buffers address and command signals, allowing the memory controller to drive fully populated slots at the rated 4800 MT/s. ECC corrects single-bit errors on the fly to prevent silent data corruption. This combination is the specification that determines whether the modules will be recognised and run stably in the target server.

How it compares

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

Price $7,960.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.10 per GB
Pricier than about 89% of the 20,941 comparable items (median $8.19 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
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-724K2
Total capacity256 GB (2 × 128 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 2 × 128 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

Should I choose the 256GB kit or a different capacity for my Supermicro H13SSH-E?

This kit provides 256GB as two 128GB modules. The H13SSH-E supports this exact capacity and rank configuration, so it will be recognised at full capacity and run at the rated 4800 speed.

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

The memory will operate at DDR5 4800 (PC5 38400) with CL40 latency at 1.1V. The registered design lets every slot run fully populated at this rated speed without downclocking.

How does the 288-pin RDIMM interface affect what I can install?

The 288-pin RDIMM form factor is the only type the H13SSH-E accepts. It matches the board's memory population rules, so the kit installs directly without compatibility issues.

More in Model-Specific Memory Upgrades

Similar items