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
Eight green DDR5 RDIMM modules in static-shield bags

NEMIX RAM

NEMIX RAM DDR5 6400 CL52 1.1V 1Rx8 ECC Registered RDIMM 128GB 8x16GB Supermicro H13SST-GC memory upgrade

SKU CH-MVYE-GRTK7

128GB DDR5 6400 ECC Registered RDIMM kit of eight 16GB modules at 1.1V CL52, validated for Supermicro H13SST-GC motherboards

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Full-capacity 128 GB kit installs as 8 × 16 GB modules
  • DDR5-6400 CL52 at 1.1 V matches the controller spec exactly
  • Registered ECC RDIMM architecture offloads the controller and corrects single-bit errors
  • 288-pin form factor verified for Supermicro H13SST-GC motherboard
  • Lifetime replacement warranty with US-based technical support included

Server-ready DDR5 128 GB kit

This NEMIX RAM kit delivers 128 GB across eight 16 GB DDR5-6400 RDIMMs built for the Supermicro H13SST-GC motherboard. Registered ECC modules with 1Rx8 organisation and CL52 timing at 1.1 V give the precise electrical profile the server memory controller expects.

DDR5 RDIMM population rules apply

DDR5 Registered DIMMs use a 288-pin interface that is mechanically and electrically distinct from UDIMM or SODIMM formats. Full-capacity operation depends on following the motherboard’s approved slot population order and maximum supported ranks per channel, which vary by platform and BIOS revision.

Bare modules for dense server chassis

Without heat spreaders the sticks fit tight DIMM spacing in 1U and 2U systems where tall heatsinks would block airflow or adjacent slots. The registered buffer reduces electrical load on the memory controller, allowing all eight slots to run populated at the rated 6400 MT/s data rate.

How it compares

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

Price $3,904.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $30.51 per GB
Pricier than about 87% 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 numberMR51200-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 8 × 16 GB DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I pick this 128GB 8x16GB kit or a different capacity for the Supermicro H13SST-GC?

This exact-match kit delivers 128GB across eight 16GB DDR5-6400 RDIMMs at 1.1V CL52 1Rx8, matching the board's population rules so every slot runs at rated speed with full capacity recognition.

What does the DDR5-6400 rating actually give me inside the H13SST-GC?

The modules operate at 6400 MT/s (PC5-51200) with CL52 latency at 1.1V, providing the bandwidth and timing the server's memory controller expects for stable, full-population operation.

How does the 288-pin RDIMM interface limit or enable performance here?

The 288-pin Registered ECC RDIMM form factor buffers address and command signals, allowing all eight slots to run fully populated at DDR5-6400 while ECC corrects single-bit errors on the fly.

More in Model-Specific Memory Upgrades

Similar items