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 288-pin DDR4 DIMM with black chips and silver heat spreader

A-Tech

A-Tech 16GB DDR4 2666 ECC RDIMM 2Rx4 server RAM

SKU CH-0RMD-W0GSG

16 GB DDR4-2666 ECC registered DIMM with 2Rx4 organisation and CL19 latency

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 16 GB capacity expands server memory headroom for larger workloads
  • ECC RDIMM registered design corrects single-bit errors to protect data integrity
  • 2666 MHz DDR4 speed with CL19 latency delivers responsive throughput at 1.2 V
  • 2Rx4 dual-rank organisation increases memory density per DIMM slot
  • 288-pin DDR4 DIMM form factor fits standard registered server memory slots

Server memory upgrade for ECC workloads

This 16 GB DDR4 RDIMM delivers registered error-correcting memory for servers and workstations that require data integrity. It operates at 2666 MHz with CL19 latency and runs at the standard 1.20 V. The module uses a 2Rx4 rank configuration with major-brand chips.

Registered DIMM build with 288-pin DDR4 interface

The registered design adds a buffer that reduces electrical load on the memory controller, allowing larger memory populations in multi-socket systems. A 288-pin DDR4 edge connector fits standard server DIMM slots and the 1.20 V operation matches platform voltage requirements. ECC circuitry corrects single-bit errors to maintain uptime.

16 GB capacity per module

Each stick provides 16 GB of registered ECC memory, so total system capacity scales with the number of populated slots. Buyers needing higher per-module density or non-ECC unbuffered memory for consumer platforms should verify their platform specifications before ordering.

Highlights

  • 16 GB capacity expands server memory headroom for larger workloads
  • ECC RDIMM registered design corrects single-bit errors to protect data integrity
  • 2666 MHz DDR4 speed with CL19 latency delivers responsive throughput at 1.2 V
  • 2Rx4 dual-rank organisation increases memory density per DIMM slot
  • 288-pin DDR4 DIMM form factor fits standard registered server memory slots

Specifications

BrandA-Tech
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions about this item

What DDR4 standard does this 2666 MT/s PC4-21300 ECC RDIMM conform to?

The module is a DDR4 2666 MT/s PC4-21300 ECC registered DIMM operating at 1.2 V with CL19 latency.

What physical slot and clearance does the 288-pin RDIMM require?

It fits a standard DDR4 288-pin DIMM socket; verify your motherboard supports registered ECC modules and has room for the module height.

How is the 2Rx4 registered module installed, and what step is often missed?

Power down, open the chassis, align the notch with the keyed slot, press firmly until both retention clips click, then confirm the BIOS recognises the full 16 GB capacity.

Also in this aisle

People compared these

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