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
Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM CSE-GS7A-2000B 768GB (12x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-WRXZ-1XZGA MPN CSE-GS7A-2000B

12-module 768GB DDR5 ECC RDIMM kit at 4800 MT/s CL40 for Supermicro SYS-551A-T workstations

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity for large server workloads
  • 12 modules of 64 GB each for full channel population
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design with CL40 latency for data integrity
  • 1 V operation on 288-pin RDIMM form factor

Target System and Capacity

This 768GB kit contains twelve 64GB DDR5 registered ECC modules built for the Supermicro SuperWorkstation SYS-551A-T and X13SWA-TF motherboard. It delivers maximum supported memory density in a single validated package for memory-intensive server workloads.

Workload Fit

Suited for administrators expanding virtualisation clusters, in-memory databases or scientific compute nodes that require registered ECC stability at the platform limit. Not suited for consumer desktops, unbuffered memory slots or any system that cannot address twelve 2Rx4 registered modules.

Deciding Specification

The 4800 MT/s DDR5 registered ECC specification with CL40 latency and 1.1V operation determines compatibility; only platforms qualified for this exact speed, voltage and rank configuration will initialise the full 768GB capacity.

How it compares

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

Price $19,103.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $24.87 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K12
Total capacity768 GB (12 × 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
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What is included in the 768GB kit and what must be purchased separately?

The kit contains twelve 64GB DDR5 4800 CL40 ECC RDIMM modules for a total of 768GB. No additional memory components are required for a full 12-slot installation.

Should I choose this 12x64GB kit or a different capacity for my Supermicro SYS-551A-T?

Select this 768GB kit when the workstation has twelve DDR5 slots and the workload needs maximum registered ECC capacity at 4800 MT/s.

What does the 4800 MT/s rating mean once the modules are installed in the Supermicro system?

The memory will operate at DDR5 4800 (PC5-38400) with CL40 latency at 1.10V, delivering registered ECC throughput across all twelve 288-pin slots.

More in Model-Specific Memory Upgrades

Similar items