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
Green circuit board with black memory chips, 288 gold pins, no heat spreader

NEMIX RAM

NEMIX RAM DDR5 6400 128GB ECC RDIMM 2Rx4 CL52 1.1V Supermicro H13SRH memory upgrade

SKU CH-BFN8-QTP91

128 GB DDR5 6400 RDIMM with ECC and registered buffering, matched to the Supermicro H13SRH motherboard for full-capacity stability

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB capacity for dense server workloads
  • DDR5 6400 speed with CL52 latency for rated performance
  • 1 V operation lowers power draw per module
  • ECC and registered design prevents silent data corruption
  • 288-pin RDIMM form factor fits Supermicro H13SRH motherboard

Exact-Match DDR5 Server Upgrade

This 128GB DDR5-6400 RDIMM is built to the precise 2Rx4, 1.1V, CL52 specification the Supermicro H13SRH memory controller expects. The module is recognised at full capacity and runs at its rated PC5-51200 speed without manual tuning. ECC and registered buffering protect data integrity in production workloads.

Fits Registered-DIMM Slots Only

The 288-pin RDIMM form factor is mandatory for this motherboard; UDIMM or SODIMM modules will not seat or function. Registered architecture offloads the memory controller so every populated slot operates at the full 128GB capacity. No heat spreader is fitted, so airflow across the DIMM area must be sufficient for sustained server operation.

For H13SRH Owners Expanding Capacity

Suited for administrators adding maximum registered ECC memory to a verified Supermicro H13SRH configuration. Builders using consumer boards, unbuffered memory, or lower-voltage DDR5 should look elsewhere. Always consult the system manual for approved population order and maximum supported capacity before purchase.

How it compares

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

Price $4,051.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $31.66 per GB
Pricier than about 90% 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 numberMR51200-724K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What is the CAS latency that limits sustained throughput?

The CL52 timing sets the minimum cycle delay the memory controller must wait between issuing a read command and receiving data, defining the baseline latency floor under sustained load.

How much heat and power does a fully populated kit draw all day?

Each module runs at 1.10 V without a heat spreader, so total power scales with the number of populated slots; the registered design keeps the memory controller cooler by buffering address and command signals.

Which motherboard and DIMM type are required for this 288-pin RDIMM to work?

The kit is validated for the Supermicro H13SRH motherboard and requires DDR5 RDIMM slots; it will not fit UDIMM or SODIMM sockets.

More in Model-Specific Memory Upgrades

Similar items