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 DDR5 memory module with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 CL40 1Rx8 ECC RDIMM Dell PowerEdge XE9640 memory upgrade

SKU CH-MKH4-YNYYN

16GB DDR5 4800 ECC RDIMM module with CL40 latency and 1.1V operation for Dell PowerEdge XE9640 servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 16 GB DDR5 4800 MHz boosts server throughput
  • ECC registered design protects data integrity under load
  • CL40 1.10 V timing balances speed and efficiency
  • 288-pin 1Rx8 module fits Dell PowerEdge XE9640 slots
  • Samsung Micron Hynix chips ensure enterprise-grade reliability

Dell PowerEdge XE9640 RDIMM upgrade

This 16 GB DDR5 registered DIMM is built for the Dell PowerEdge XE9640 server platform. It delivers ECC protection and registered signalling for multi-socket stability in enterprise workloads. The module operates at 1.1 V with a CAS latency of CL40.

Sustained-load behaviour with ECC RDIMM

Registered buffering reduces electrical load on the memory controller during continuous throughput. ECC corrects single-bit errors in real time, preventing silent data corruption under long-running compute tasks. The 4800 MT/s data rate maintains consistent bandwidth across extended sessions.

Replacing slower or non-ECC memory in Dell servers

This module upgrades from lower-speed DDR5 or non-ECC unbuffered DIMMs that lack error correction. The jump is worth it when workloads demand data integrity and the platform requires registered modules for memory capacity scaling.

How it compares

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

Price $483.99
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 $30.25 per GB
Pricier than about 86% 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 lineDell Server/Workstation Compatible Series Memory
Model nameDell 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 systemsDell
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

How much power does this 1.1 V DDR5 RDIMM draw when the server runs continuously?

The module operates at 1.1 V, the standard DDR5 voltage, so power draw stays within the platform's registered DIMM budget for all-day workloads.

What server configuration is required before installing this 288-pin ECC registered module?

A Dell PowerEdge XE9640 with an available DDR5 RDIMM slot and BIOS that supports 4800 MT/s registered ECC memory.

Will this CL40 1Rx8 module run alongside other DDR5 RDIMMs already in my Dell server?

Yes, it matches the DDR5 4800 RDIMM specification; populate remaining slots with identical speed, rank and ECC type for optimal stability.

More in Model-Specific Memory Upgrades

Similar items