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
Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade for THINKMATE SuperServer 521C-NR

SKU CH-KW5N-JAHSC

256 GB DDR5 ECC registered server memory kit with sixteen 16 GB modules at 4800 MT/s, CL40, 1.1 V for the ThinkMate SuperServer 521C-NR

  • Capacity256GB (16 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity with 16 matched 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity under load
  • 1 V operating voltage reduces power draw in dense configs
  • Validated for ThinkMate SuperServer 521C-NR compatibility

System-specific DDR5 RDIMM kit

This NEMIX RAM kit supplies 256 GB of DDR5 4800 registered ECC memory across 16 modules of 16 GB each. It is built for the THINKMATE SuperServer 521C-NR and uses 1Rx8 Samsung, Micron or Hynix chips at 1.1 V with CL40 latency.

Verify server DIMM slots and population rules

Confirm the SuperServer 521C-NR has 16 available 288-pin DDR5 RDIMM slots and that its memory controller supports a full 1Rx8 population at 4800 MT/s. Check the system manual for any rank-per-channel limits or specific slot-filling sequences before installing all 16 modules.

Suited for maxed-out ThinkMate 521C-NR builds

This kit fits administrators who need the full 256 GB capacity in a single validated package for the named server. Buyers who want fewer modules, lower capacity, unbuffered DIMMs or a different speed grade should look at other configurations.

Highlights

  • 256 GB total capacity with 16 matched 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity under load
  • 1 V operating voltage reduces power draw in dense configs
  • Validated for ThinkMate SuperServer 521C-NR compatibility

Specifications

BrandNEMIX RAM
SeriesTHINKMATE Server/Workstation Compatible Series Memory
ModelTHINKMATE DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K16
Capacity256GB (16 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemTHINKMATE
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (16X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What does the 256 GB kit contain and is anything else required?

The kit includes sixteen 16 GB DDR5 4800 CL40 1.10 V ECC registered RDIMM modules. No extra parts are needed for installation in the supported server.

How do I decide between the available capacities for the SuperServer 521C-NR?

This part number MR38400-618K16 provides the maximum 256 GB configuration using all sixteen slots. Smaller kits use fewer 16 GB modules if you need less capacity.

What does the 4800 speed rating mean once the memory is installed in the server?

The modules run at DDR5 4800 MT/s (PC5 38400) with CL40 latency at 1.10 V, delivering the rated bandwidth and error correction the platform expects.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.