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
Eight green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 PC5-38400 CL40 1.10V 1Rx8 ECC RDIMM Dell PowerEdge R7625

SKU CH-47PH-G99AX

Eight-module kit delivers 128 GB of DDR5 ECC registered memory at 4800 MHz for Dell PowerEdge R7625 servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity from eight 16 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • CL40 latency at 1.10 V registered operation
  • ECC registered 1Rx8 design for data integrity
  • Validated for Dell PowerEdge R7625 rack servers

128GB DDR5 RDIMM kit for Dell PowerEdge R7625

This registered ECC memory kit provides 128 gigabytes across eight 16-gigabyte modules. It is built for IT teams upgrading Dell PowerEdge R7625 rack servers that require registered DDR5 memory with error correction. The 288-pin form factor matches the server's DIMM slots exactly.

CL40 1.10V timing and voltage profile

Each module runs at DDR5 4800 with a CAS latency of 40 and a 1.10-volt operating voltage. The registered design adds a clock cycle of buffering to stabilise heavy multi-module loads, while on-die ECC protects data integrity without consuming extra bandwidth.

Eight ranks of 1Rx8 density for dense configurations

The 1Rx8 organisation across eight modules fills eight DIMM slots, delivering maximum capacity per channel on supported platforms. Systems needing more than 128 gigabytes or additional channels must use higher-density modules or a platform with more memory controllers.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $3,492.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $27.29 per GB
Pricier than about 89% of the 6,064 comparable items (median $7.25 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 Series Server Memory
Model nameDell Compatible DDR5 ECC Registered RDIMM
Part numberMR38400-618K8
Total capacity128 GB (8 × 16 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
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

Will the 1Rx8 DDR5 modules need any firmware updates or replacement after long-term server use?

The modules are stress-tested before shipping and carry a lifetime replacement warranty; no firmware updates are required for the memory itself.

What thermal limit appears first when the 128GB kit runs continuously at 4800 MT/s in a PowerEdge R7625?

With no heat spreaders, the DRAM junction temperature will reach its throttle point before the 1.10 V power envelope becomes a constraint.

How much extra fan noise and power draw should I expect from eight 16 GB RDIMMs operating all day at 1.10 V?

Registered DDR5 at 1.10 V adds only modest power per module; the R7625's existing cooling curve typically handles the load without audible fan-speed increases.

More in ECC Server RAM

Similar items