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 circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM HPE DDR4 2666 ECC RDIMM 8GB CL19 288-Pin 1Rx8 memory upgrade

SKU CH-JTXA-KXE2X

An 8 GB DDR4-2666 ECC registered DIMM built for HPE servers and workstations

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • ECC protection prevents data corruption in critical workloads
  • Registered buffering stabilises signal integrity for server platforms
  • 2666 MHz DDR4 speed delivers 21300 MT/s bandwidth
  • 20 V low voltage reduces power draw per module
  • 288-pin RDIMM form factor fits HPE 815097 compatible systems

HPE-Compatible DDR4 RDIMM

This NEMIX RAM module delivers 8 GB of DDR4 2666 ECC registered memory for HPE servers and workstations. It runs at 1.20 V with CL19 latency and a 1Rx8 organisation. The 288-pin RDIMM form factor matches the mechanical and electrical requirements of the listed HPE part numbers.

Who This Suits

IT teams maintaining HPE platforms that specify 815097-B21, 815097-H21 or 815097-K21 will find a direct replacement. Builders needing non-ECC unbuffered DIMMs, higher capacities per module, or faster speeds should look at other memory types.

Deciding Specification

The registered ECC design with 1Rx8 architecture determines whether the module works in your HPE system; only platforms that accept registered DDR4 2666 RDIMMs can use this part.

How it compares

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

Price $48.99
Cheaper than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.12 per GB
Cheaper than about 64% 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 lineHPE Server/Workstation Compatible Series Memory
Model nameHPE DDR4 2666 MHz ECC RDIMM Registered Server Memory
Part numberMR21300-818K1
Total capacity8 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHPE
In the box
Included items8 GB (1 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the CL19 latency become a bottleneck during sustained server workloads?

CL19 is the rated CAS latency for this DDR4 2666 module; it is the primary timing limit you will see under continuous load.

How much heat does the 1.2V registered DIMM produce when running all day?

The module operates at 1.20V without a heat spreader; registered ECC RDIMMs at this voltage typically run cool enough for standard server airflow.

Which HPE part numbers must my server already support for this 8GB stick to work?

This memory is validated for HPE part numbers 815097-B21, 815097-H21 and 815097-K21; your system must accept one of those.

More in Model-Specific Memory Upgrades

Similar items