Dell AA335286 16GB DDR4 2666MHz ECC UDIMM

The Dell AA335286 is a 16GB DDR4-2666MHz ECC UDIMM — a workstation and entry-server memory module where the defining specification isn't speed, it's reliability. Running at 2666MHz on a standard 64-bit wide DDR4 bus, the module delivers throughput appropriate for Xeon and EPYC workstation platforms. But the real capability here is ECC: the ability to detect and automatically correct single-bit DRAM errors before they propagate into application data. At 2Rx8 rank configuration and 16GB capacity, it occupies a practical middle ground — large enough to carry real server workloads, conservative enough in rank count to populate multiple slots without hitting platform limits.

This module is purpose-built for Dell environments. OEM validation against Dell firmware means BIOS-level memory reporting, SPD detection, and platform power states all behave as expected — no memory training failures, no voltage negotiation surprises. It's the right choice for expanding a Dell Precision workstation, refreshing an entry PowerEdge server, or building a Xeon-based workstation where ECC is a requirement rather than a nice-to-have. For anyone running databases, virtual machines, or financial modeling software on Dell hardware, this module is a straightforward, low-risk capacity upgrade.