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 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

  • Capacity16GB
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • 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.

Highlights

  • 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

Specifications

BrandA-Tech
Capacity16GB
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.