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 16GB DDR5 4800 CL40 1Rx8 ECC RDIMM HPE P43322-K21 memory upgrade

SKU CH-795J-43ZMA

16 GB DDR5-4800 ECC registered DIMM for HPE servers, CL40 1Rx8 at 1.1 V

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity on dense server platforms
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • 1 V operation reduces power draw per module
  • 1Rx8 single-rank layout simplifies memory population rules

HPE Server Memory Upgrade

This 16GB DDR5 RDIMM is built for HPE servers and workstations that require registered ECC memory. It operates at 4800MHz with a CL40 latency and 1.1V voltage. The module uses a 288-pin form factor with a 1Rx8 rank configuration.

Registered ECC Module Design

The registered buffer reduces electrical load on the memory controller for stable operation in multi-module configurations. On-die ECC corrects single-bit errors to protect data integrity in mission-critical workloads. Major OEM chips from Samsung, Micron or Hynix are used. No heat spreader is included.

Suited for Compatible HPE Systems

This upgrade fits administrators expanding memory in qualified HPE platforms using the P43322-K21 part number. Builders needing unbuffered UDIMMs, non-ECC memory, or different speeds should look at other products.

How it compares

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

Price $407.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.50 per GB
Pricier than about 70% 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 DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K1
Total capacity16 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 systemsHPE
In the box
Included items16 GB (1 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the DDR5 4800 RDIMM need a heat spreader added later for sustained server workloads?

The module ships without a heat spreader; HPE server chassis airflow is designed to cool bare registered DIMMs at 1.10 V under continuous load.

What limits throughput first when the 1Rx8 ECC module runs at 4800 MT/s all day?

The CL40 CAS latency sets the timing ceiling; registered buffering adds one cycle but prevents signal degradation that would otherwise throttle sustained bandwidth.

How much noise and heat does the 288-pin registered DIMM generate at 1.1 V in an HPE system?

Solid-state DRAM produces no acoustic noise; at 1.1 V the thermal output is low enough for standard server fan curves without extra cooling.

More in Model-Specific Memory Upgrades

Similar items