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Four green DDR5 ECC UDIMM sticks in silver anti-static tray

NEMIX RAM

NEMIX RAM 128GB (4 x 32GB) DDR5 4800MHz ECC UDIMM 2Rx8 1.1V

SKU CH-ARAM-5D3CE

A 128 GB kit of four 32 GB DDR5 4800 MHz ECC UDIMM modules at CL40 and 1.1 V

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • 128GB total capacity across four 32GB modules
  • DDR5 4800MHz speed for high-throughput server workloads
  • ECC protection detects and corrects single-bit errors
  • 1V operation reduces power draw and heat
  • Unbuffered 288-pin UDIMM fits compatible DDR5 platforms

128GB DDR5 4800 ECC UDIMM Kit

This 128GB kit contains four 32GB unbuffered DDR5 4800 modules with ECC and a CAS latency of 40. It operates at 1.1V and uses a 2Rx8 rank configuration across 288-pin DIMMs. The memory is built with major OEM chips from Samsung, Micron or Hynix and is intended for servers or workstations that require error-correcting DDR5 4800 unbuffered memory.

Suits ECC UDIMM platforms needing 128GB at 4800MHz

This kit fits systems that take four 288-pin DDR5 ECC UDIMMs running at 4800MHz with 1.1V operation. It is not for platforms that require registered or load-reduced DIMMs. Buyers who need higher speeds, lower latency, non-ECC modules or a different module count should look at other memory options.

The deciding spec is ECC UDIMM at DDR5 4800 1.1V

Verify that your motherboard and CPU support unbuffered ECC DDR5 at 4800MHz and 1.1V before purchasing. If the platform requires registered DIMMs, a different voltage or a non-ECC configuration, this kit will not function correctly.

How it compares

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

Price $2,584.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
CAS latency 40
Typical for this category: the median of 439 items is 40.
Price per GB $20.20 per GB
Pricier than about 81% 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
Model namePart#: ME38400-328K4-SM-SYS-111AD-HN2-01-G2
Part numberPart#: ME38400-328K4-SM-SYS-111AD-HN2-01-G2
Total capacity128 GB (4 × 32 GB)
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency40
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.1 V

Questions about this item

How do I install the 288-pin DDR5 UDIMM modules, and what step is often missed?

Align the key notch on each 288-pin module with the motherboard slot, press firmly until both retention clips click, and populate all four channels for 128 GB; the step often missed is verifying the BIOS recognises all four 32 GB ranks after first boot.

What maintenance or replacement will the ECC UDIMM kit need over its lifetime?

No scheduled maintenance is required; the modules are covered by a lifetime replacement warranty, so a failed stick is swapped rather than serviced.

What limit appears first when the 4800 MHz kit runs under sustained load?

The CAS latency of 40 cycles at 1.1 V is the primary timing constraint that governs sustained throughput before thermal or voltage limits become factors.

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