A-Tech 4GB DDR4 2666 ECC RDIMM 1Rx8 CL19 1.2V server RAM

4 GB DDR4 2666 ECC RDIMM for servers

This 4 GB module is a registered DDR4 DIMM with error-correcting code and a single-rank x8 layout. It runs at 2666 MHz with CL19 latency and standard 1.2 V power. The 288-pin form factor fits server and workstation platforms that require ECC RDIMM memory. Desktop and laptop systems are not supported.

Sustained workload behaviour

Error correction detects and corrects single-bit errors during continuous operation, helping data integrity under long-running server loads. Registered buffering reduces electrical load on the memory controller, allowing stable timing at the rated 2666 MHz speed across populated channels. The single-rank organisation keeps latency predictable for consistent throughput.

Upgrade context

This module replaces a missing or failed DDR4 ECC RDIMM in a compatible server or workstation. The capacity increase is worthwhile when the system reports memory pressure or when adding modules to fill empty slots for multi-channel bandwidth. Buyers who need non-ECC memory, unbuffered DIMMs or a different DDR generation cannot use this product.