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 in static bags

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 ECC RDIMM SuperMicro Server Memory Upgrade

SKU CH-AQJR-1BCVD

A 64 GB kit of four 16 GB DDR5 4800 CL40 ECC registered DIMMs for compatible SuperMicro servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB total capacity for demanding server workloads
  • DDR5 4800 speed with CL40 latency for responsive data handling
  • ECC registered design protects data integrity in critical environments
  • 1 V operation reduces power draw across four modules
  • Validated for SuperMicro Hyper SuperServer SYS-121H-TNR, SYS-221H-TNR, SYS-221H-TN24R

64 GB DDR5 ECC RDIMM Kit for SuperMicro

This 64 GB kit contains four 16 GB DDR5 4800 registered DIMMs with ECC and CL40 latency. It is built for SuperMicro Hyper SuperServer systems such as the SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R that require registered error-correcting memory.

Installation is tool-free and takes minutes

Align each 288-pin module with the slot key and press firmly until the retention clips lock. The most common issue is mixing registered DIMMs with unbuffered memory or populating slots in an order the motherboard manual does not support.

Verify your server model and slot population rules

Confirm the exact SuperMicro system matches the listed compatible models and check the manual for required DIMM placement per channel. Ensure the platform supports 1.1 V DDR5 registered modules and that all four slots can accept 1Rx8 organisation.

How it compares

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

Price $1,663.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.00 per GB
Pricier than about 71% 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K4
Total capacity64 GB (4 × 16 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
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB (4 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How can I confirm the DDR5 4800 CL40 ECC RDIMM kit is running correctly after installation?

Enter the server BIOS or use a hardware monitoring tool to verify the memory reports 4800 MT/s, CL40 timings, 1.10 V operation and that ECC is active across all four modules.

What comes in the box with the NEMIX RAM 64 GB kit and what must be purchased separately?

The package contains four 16 GB DDR5 4800 CL40 288-pin ECC RDIMM modules; no cables, brackets or additional components are included and nothing else is required for installation.

Which capacity version of this SuperMicro-compatible DDR5 RDIMM kit should I choose for a SYS-221H-TNR?

The 64 GB (4 × 16 GB) kit matches the four-channel architecture of the SYS-221H-TNR and provides 1Rx8 registered ECC modules at the supported 4800 MT/s speed.

More in Model-Specific Memory Upgrades

Similar items