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Green bare circuit board with black memory chips and gold edge contacts

A-Tech

A-Tech 16GB DDR5 4800 ECC UDIMM 1Rx8 for Hynix HMCG78AEBEA084N server RAM

SKU CH-TC59-W93CG

A 16 GB DDR5 ECC UDIMM running at 4800 MHz with CL40 latency and 1.10 V for server workloads

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor Brand Chipset
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • 16GB DDR5-4800 ECC UDIMM for reliable server workloads
  • 1Rx8 single-rank layout keeps latency low at CL40
  • 10V standard voltage reduces power draw per module
  • 288-pin DDR5 form factor fits compatible server boards
  • Major-brand DRAM ICs tested for dependable operation

Capacity and form factor

This A-Tech module provides 16GB of DDR5 memory in a 288-pin UDIMM form factor. It operates at 4800MHz with a CAS latency of 40 and runs at the standard 1.10V. The kit is an unbuffered, single-rank 1Rx8 design with on-die ECC for data integrity.

Who this suits

Builders upgrading or repairing servers and workstations that specifically require DDR5 4800 unbuffered ECC UDIMMs will find this module a direct fit. It is not for systems that need registered or load-reduced DIMMs, nor for boards that only accept non-ECC memory.

Deciding specification

The critical match is the 1Rx8 rank and chip organisation combined with unbuffered ECC operation at 1.10V. Verify that your platform supports this exact configuration before ordering, as registered or differently ranked modules will not function correctly.

How it compares

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

Price $367.99
Pricier than about 64% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% 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 $23.00 per GB
Pricier than about 84% 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 HMCG78AEBEA084N
Model nameA-Tech 16 GB DDR5-4800 ECC UDIMM Server RAM Module
Total capacity16 GB
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latency40
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

How does the 1Rx8 rank configuration affect sustained throughput on this DDR5 4800 module?

The single-rank 1Rx8 layout keeps all 16 GB on one rank, allowing the memory controller to access the full capacity without rank-to-rank switching delays during long workloads.

What thermal and acoustic impact should I expect when this unbuffered ECC UDIMM runs continuously at 1.10 V?

With no heat spreader and standard 1.10 V DDR5 voltage, the module relies on case airflow; it adds minimal heat and produces no audible noise of its own.

Which motherboard slot and firmware features are required for this 288-pin DDR5 ECC UDIMM to operate?

You need a DDR5-compatible motherboard with a 288-pin UDIMM slot and BIOS support for ECC on unbuffered memory.

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