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 circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 64GB DDR5 5600 ECC RDIMM 2Rx4 for Hynix HMCG94AGBRA177N 179N 182N HMCG94BGBRA181N Server RAM

SKU CH-EZNE-A1TW6

64GB DDR5 5600 ECC registered DIMM with 2Rx4 rank and 1.10V operation for server upgrades

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand Chipset
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 64GB capacity handles heavy server workloads with DDR5 5600 speed
  • ECC RDIMM registered design protects data integrity in critical applications
  • 2Rx4 dual-rank organisation maximises memory density per slot
  • 1V standard DDR5 voltage reduces power draw per module
  • Direct replacement for Hynix HMCG94AGBRA177N 179N 182N 181N part numbers

64GB DDR5-5600 ECC RDIMM

This 64GB DDR5-5600 ECC RDIMM uses a 288-pin registered design with a 2Rx4 rank structure and a CAS latency of 40. It operates at the standard DDR5 voltage of 1.10V and is built as a compatible replacement for specific Hynix server modules. The module targets administrators upgrading or repairing enterprise server and workstation platforms.

Suited for registered ECC servers only

This module fits systems that require registered ECC DDR5 memory and accept the listed Hynix part numbers. It is not suitable for platforms that support only unbuffered non-ECC memory, nor for boards limited to earlier DDR generations. Buyers needing a different capacity, rank configuration, or speed grade should look at alternative modules.

2Rx4 registered ECC DDR5 at 5600 MT/s

The 2Rx4 registered ECC organisation running at 5600 MT/s is the specification that determines compatibility with the target server platform. Verify that the system memory controller and qualified vendor list support this exact rank and buffer type before ordering.

How it compares

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

Price $1,937.99
Pricier than about 86% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% 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 $30.28 per GB
Pricier than about 90% 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 nameA-Tech
Product lineCompatible Replacement for Hynix HMCG94AGBRA177N HMCG94AGBRA179N HMCG94AGBRA182N HMCG94BGBRA181N
Model nameA-Tech 64 GB DDR5-5600 ECC RDIMM Server RAM Module
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

Which server motherboard slot accepts this 288-pin DDR5 RDIMM?

The module fits a standard DDR5 RDIMM socket on a server or workstation motherboard that supports registered ECC memory at 1.10 V.

Can I mix this 2Rx4 5600 MHz module with existing 1Rx8 DDR5 RDIMMs in the same channel?

Mixing ranks is possible if the platform allows it, but the memory controller will run all modules at the lowest common speed and may require specific slot population rules.

How do I verify the module runs at 5600 MHz with CL40 after installation?

Check the BIOS memory information or use a tool such as dmidecode to confirm the reported speed is 5600 MT/s and the CAS latency shows 40.

More in ECC Server RAM

Similar items