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
Four green DDR5 RDIMM modules without heat spreaders, 288-pin server memory kit

NEMIX RAM

NEMIX RAM DDR5 4800 ECC Registered RDIMM 256GB 4x64GB CL40 1.1V Supermicro H13DSG-OM memory upgrade

SKU CH-Y3WN-X485X

256 GB DDR5 registered ECC server memory kit with four 64 GB modules at 4800 MT/s, CL40, 1.1 V for Supermicro H13DSG-OM

  • 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 30 more
  • 256 GB capacity across four 64 GB modules for maximum server density
  • DDR5-4800 speed with CL40 timing delivers rated throughput out of the box
  • Registered ECC design with 2Rx4 organisation offloads the controller and corrects single-bit errors
  • 1 V operation matches the Supermicro H13DSG-OM memory controller specification exactly
  • 288-pin RDIMM form factor fits the board's required slot type and population rules

Supermicro H13DSG-OM DDR5 upgrade

This 256GB kit contains four 64GB DDR5 4800 Registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro H13DSG-OM motherboard expects. It targets administrators who need the full 256GB capacity recognised at rated speed without manual tuning.

DDR5 4800 RDIMM interface limits

The modules run at 4800 MT/s with CL40 latency at 1.1V, the baseline DDR5 server data rate. Registered buffering allows every slot to be populated while keeping the memory controller load manageable, but the standard caps frequency at this level unless the platform explicitly supports higher JEDEC bins.

256GB capacity and headroom

Four dual-rank 64GB DIMMs fill the board's supported slots and deliver 256GB of ECC-protected memory for virtualisation, databases or large in-memory workloads. Expanding beyond this kit requires a motherboard with additional DIMM sockets or higher-density modules that the platform must expressly qualify.

How it compares

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

Price $6,335.99
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 $24.75 per GB
Pricier than about 69% 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 numberMR38400-924K4
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

Should I choose the 4x64GB kit or a different capacity for my Supermicro H13DSG-OM?

This kit provides 256GB total across four 64GB modules, matching the board's 288-pin RDIMM slots and registered ECC requirements for full-capacity recognition.

What does the DDR5-4800 CL40 rating deliver once installed in the server?

The modules run at 4800 MT/s with CL40 latency at 1.1V, giving the memory controller the exact timing and voltage it expects for stable operation at rated speed.

How does the registered ECC interface affect performance limits on this motherboard?

Registered buffering reduces electrical load on the controller so all four slots can run fully populated at 4800 MT/s, while ECC corrects single-bit errors to prevent silent data corruption.

More in Model-Specific Memory Upgrades

Similar items