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Green rectangular DDR4 DIMM module with black chips and gold contacts

A-Tech

A-Tech 16GB DDR4 2400 ECC UDIMM 2Rx8 CL17 1.20V server RAM

SKU CH-4MWQ-1VZKG

16 GB DDR4 2400 ECC UDIMM module with CL17 latency and 1.2 V operation for server memory upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 16 GB DDR4 2400 MHz ECC UDIMM expands server capacity
  • CL17 latency at 1.20 V balances speed and power draw
  • 2Rx8 dual-rank layout increases memory density per slot
  • 288-pin DDR4 DIMM fits standard unbuffered server boards
  • Tested with major-brand chips for dependable operation

16GB DDR4 ECC UDIMM for servers

This 16GB DDR4 2400 ECC UDIMM module is built for server and workstation systems that require error-correcting memory. It operates at 1.20V with CL17 latency and uses a 2Rx8 unbuffered design.

Suited for Synology D4EC-2400-16G replacement

This module matches the Synology D4EC-2400-16G specification for compatible upgrades. It is not for systems that need registered or load-reduced DIMMs, nor for platforms that only accept non-ECC consumer memory.

Verify DDR4 ECC UDIMM support first

Check that your motherboard or server accepts DDR4 ECC unbuffered DIMMs at 2400MHz before ordering. Confirm the maximum capacity per slot and total system limit in your hardware documentation.

How it compares

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

Price $113.99
Cheaper 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).
Price per GB $7.12 per GB
Typical for this category: the median of 6,064 items is $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
Total capacity16 GB
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Does this 288-pin DDR4 UDIMM need a server motherboard that supports ECC and unbuffered memory?

Yes, the module is an ECC unbuffered DIMM, so the motherboard must accept ECC UDIMMs and provide a DDR4 288-pin slot.

Will this 2Rx8 1.20V module run stably with my existing 1Rx8 DDR4 ECC UDIMMs?

Mixing ranks is usually possible, but the system will operate at the slowest common speed and timing; check the motherboard manual for supported rank configurations.

How can I confirm the stick is running at 2400MHz CL17 with ECC active after installation?

Enter the BIOS or use a tool like CPU-Z to verify the reported speed of 2400MHz, CAS latency of 17, and that ECC status shows enabled.

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