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

NEMIX RAM

NEMIX RAM 8GB DDR4 3200 CL22 ECC UDIMM memory upgrade

SKU CH-851A-P5SXD

8GB DDR4 3200 ECC UDIMM module with CL22 latency and 1.2V operation for ASRock Rack server motherboards

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection prevents data corruption in critical workloads
  • 3200 MHz DDR4 speed handles demanding server tasks
  • 2 V operation reduces power draw and heat
  • 288-pin UDIMM fits compatible ASRock Rack motherboards
  • Single-rank 1Rx8 layout simplifies memory-channel population

8GB DDR4 3200 ECC UDIMM for ASRock servers

This 8 GB DDR4 3200 module adds ECC unbuffered memory to compatible ASRock Rack motherboards. It runs at 1.2 V with CL22 latency and a 1Rx8 organisation. The 288-pin UDIMM fits standard DDR4 slots in supported server and workstation boards. System builders upgrading E3C256D4 series platforms can install it without registered DIMM requirements.

Practical limits of DDR4 3200 ECC unbuffered

DDR4 3200 sets the maximum data rate at 3200 MT/s and the peak bandwidth at PC4-25600. Unbuffered ECC modules rely on the memory controller for command and address buffering, so total capacity per channel is limited by the board's trace layout and rank support. The CL22 timing and 1.2 V operation are fixed by the JEDEC standard for this speed grade; tighter latencies or higher voltages are not supported by this part. Builders who need registered DIMMs or higher frequencies must choose a different module.

Replaces non-ECC or lower-capacity DDR4 UDIMMs

This module replaces non-ECC DDR4 UDIMMs when data integrity is required, or adds a second 8 GB stick to populate an empty slot on a supported board. The upgrade is worthwhile when the workload demands error correction or when the system currently runs with a single rank per channel and the motherboard can utilise the additional rank. If the platform already uses registered memory or requires speeds above 3200 MT/s, this UDIMM will not meet those needs.

How it compares

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

Price $70.99
Cheaper than about 72% 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 $8.87 per GB
Typical for this category: the median of 20,941 items is $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 lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz ECC Unbuffered UDIMM
Part numberME25600-818K1
Total capacity8 GB
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items8 GB (1 × 8 GB) DDR4 3200 MHz PC4-25600 1Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM

Questions about this item

Is the 8 GB single module the only capacity offered for this compatible series?

Yes, the listed part ME25600-818K1 is an 8 GB single module; no other capacities appear in the compatibility list for the ASRock Rack motherboards named.

What does DDR4 3200 CL22 mean for actual server workloads?

The module runs at 3200 MT/s with a CAS latency of 22 cycles at 1.2 V, giving ECC error correction and unbuffered operation for the supported ASRock Rack platforms.

Does the 288-pin DDR4 interface limit the speed to PC4-25600 on these boards?

The 288-pin DDR4 UDIMM form factor carries the PC4-25600 rating; the motherboard's memory controller determines the final operating speed, which is specified as 3200 MHz for the listed models.

More in Model-Specific Memory Upgrades

Similar items