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
Green rectangular circuit board with black chips and gold edge contacts

NEMIX RAM

NEMIX RAM 8GB DDR4 2666 PC4-21300 CL19 1Rx8 1.2V 288-Pin UDIMM memory upgrade

SKU CH-C7PA-PJQSP

8GB DDR4 2666 CL19 UDIMM built for SuperMicro desktop and workstation boards

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 8 GB capacity expands system memory for demanding workloads
  • DDR4 2666 speed delivers high data transfer rates
  • CL19 latency supports responsive application performance
  • 2 V operation reduces power consumption and heat
  • 288-pin UDIMM form factor fits compatible Supermicro motherboards

8 GB DDR4 UDIMM for Supermicro Workstations

This 8 GB DDR4 2666 module is built for Supermicro desktop and SuperWorkstation motherboards such as the MBD-C9Z390CG-IW. It uses a 288-pin unbuffered non-ECC design with a 1Rx8 rank layout. The stick runs at 1.20 V and carries a CL19 latency rating.

Sustained-load behaviour with Samsung.

Major OEM DRAM from Samsung, Micron or Hynix is stress-tested under load before shipping. The unbuffered topology keeps signal paths short for stable throughput during long compute sessions. No heat spreader is fitted, so airflow across the PCB handles thermal dissipation.

Check motherboard slot count

Verify that your Supermicro board accepts 288-pin DDR4 UDIMMs and supports the total capacity you plan to install. The module is non-ECC and unbuffered, so it will not work in slots that require registered or ECC memory. Ensure the BIOS is current for the target memory speed.

Highlights

  • 8 GB capacity expands system memory for demanding workloads
  • DDR4 2666 speed delivers high data transfer rates
  • CL19 latency supports responsive application performance
  • 2 V operation reduces power consumption and heat
  • 288-pin UDIMM form factor fits compatible Supermicro motherboards

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSupermicro DDR4 2666MHZ Non-ECC Unbuffered UDIMM
Part NumberMD21300-818K1
Capacity8GB
SpeedDDR4 2666 (PC4 21300)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSupermicro
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 UDIMM
Rank1Rx8
FeaturesDDR4 Non- ECC Unbuffered UDIMM Motherboard Compatible
Package Content8GB (1X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

Does the CL19 latency and 1.2 V voltage mean the module runs cool and quiet during all-day workloads?

The module operates at the standard DDR4 voltage of 1.2 V with CL19 timing and has no heat spreader, so it relies on case airflow to stay cool during sustained use.

My SuperMicro board has 288-pin DDR4 slots — is that the only requirement for this UDIMM to work?

Yes, the 288-pin UDIMM form factor, DDR4 2666 speed and non-ECC unbuffered design match the motherboard specification listed for the MBD-C9Z390CG-IW.

Can I add this 1Rx8 stick alongside the older 2Rx8 DDR4 modules already in my workstation?

Mixing 1Rx8 and 2Rx8 ranks is often supported, but the motherboard manual for your SuperMicro system should be checked for approved population rules.

Also in this aisle

People compared these

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