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 2TB (16x128GB) DDR5 4800 CL40 4Rx4 1.1V ECC RDIMM Cisco UCS C220 M7 memory upgrade

SKU CH-G5KB-4PH6J

2 TB DDR5 4800 ECC registered memory kit with sixteen 128 GB modules at CL40 and 1.1 V for Cisco UCS C220 M7 servers

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 2TB capacity from 16 modules of 128GB each
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 4Rx4 rank organization for high-density server workloads
  • Low 1.1V operating voltage reduces power draw

Cisco UCS C220 M7 memory kit

This 2 TB kit contains sixteen 128 GB DDR5 RDIMMs built for the Cisco UCS C220 M7 rack server. Each module is a registered ECC DIMM operating at 1.1 V with a CAS latency of 40. The kit targets administrators who need maximum capacity in a single validated package.

DDR5 4800 registered ECC limits

The modules run at DDR5 4800 (PC5 38400) with a 4Rx4 organisation and 288-pin form factor. Registered buffering and on-die ECC add latency compared with unbuffered memory, so peak bandwidth is lower than consumer DDR5 at the same data rate. Systems that do not support registered ECC DDR5 cannot use these modules.

Major OEM chips without heat spreaders

Samsung, Micron or Hynix DRAM chips are used depending on supply, all tested under load for stability. The bare PCB design means airflow across the server chassis must handle cooling; no integrated spreader is present. Installers should verify that the server's memory population rules allow sixteen 4Rx4 modules before deployment.

How it compares

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

Price $58,397.99
Pricier than about 97% of the 21,161 comparable items (median $397.99).
Total capacity 2 TB (16 × 128 GB)
Higher than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $29.20 per GB
Pricier than about 83% 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 lineCisco Server Compatible Series Memory
Model nameCisco DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K16
Total capacity2 TB (16 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco
In the box
Included items2 TB (16 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I choose the 16-module kit or buy smaller kits to reach 2TB?

The kit contains exactly 16 modules of 128GB each, so a single purchase delivers the full 2TB capacity for the Cisco UCS C220 M7 without mixing part numbers.

What does the 4800 MT/s rating mean once the memory is installed in the server?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.1V, delivering the rated throughput and timings when the Cisco UCS C220 M7 memory controller operates at its maximum supported DDR5 speed.

How does the 288-pin DDR5 RDIMM interface limit the usable speed in this server?

The 288-pin registered DDR5 form factor is keyed for the Cisco UCS C220 M7 slots, so the memory operates at the platform's native DDR5 4800 ceiling rather than any higher data rate.

More in Model-Specific Memory Upgrades

Similar items