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Green rectangular DDR5 DIMM with black chips and gold contacts

A-Tech

A-Tech 128GB DDR5 4800MHz ECC RDIMM Server Memory

SKU CH-GN2W-YCQRB

128GB DDR5 4800MHz ECC registered server memory module with CL40 latency and 1.1V operation

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128GB capacity handles heavy server workloads
  • DDR5 4800MHz speed delivers high bandwidth
  • ECC RDIMM ensures data integrity
  • 10V operation meets DDR5 standard
  • Compatible with Hynix HMCT04MEERA series

128GB DDR5 4800MHz ECC RDIMM

This 128GB DDR5 module operates at 4800MHz with PC5-38400 bandwidth. It features ECC error correction and registered buffering for stable server workloads. The single stick uses a 288-pin DIMM form factor and runs at 1.10V standard voltage.

Suited for Hynix HMCT04MEERA replacements

This module directly replaces Hynix part numbers HMCT04MEERA, HMCT04MEERA129N, HMCT04MEERA132N and HMCT04MEERA135N. It fits systems requiring 2S2Rx4 3DS TSV registered DIMMs with CL40 latency. Builders needing non-ECC unbuffered memory or lower-capacity sticks should look elsewhere.

2S2Rx4 3DS TSV rank architecture

The 4Rx4 EC8 organisation with 3DS through-silicon via stacking enables the 128GB density on a single module. This rank configuration decides compatibility with the memory controller and slot population rules of the target platform.

How it compares

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

Price $3,650.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $28.52 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix
Model nameHMCT04MEERA, HMCT04MEERA129N, HMCT04MEERA132N, HMCT04MEERA135N
Total capacity128 GB
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2S2Rx4 (4Rx4 EC8)
Power
Rated voltage1.1 V

Questions about this item

What motherboard slot does this 288-pin DDR5 RDIMM require?

It installs in a standard 288-pin DDR5 DIMM slot on a server or workstation motherboard that supports registered ECC memory.

Can I mix this 4Rx4 3DS module with existing single- or dual-rank DDR5 RDIMMs?

Mixing ranks is possible only if the platform's memory controller and BIOS support heterogeneous rank populations; consult the system vendor's qualified vendor list.

How do I confirm the module runs at 4800 MT/s with CL40 after installation?

Check the BIOS memory information screen or use a tool such as dmidecode to verify the reported speed of 4800 MT/s and CAS latency of CL40.

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