The and ET1851 are legacy budget desktop PCs from the early 2010s, originally produced by Acer’s low-cost sister brand, eMachines . While nearly identical in their simple black tower chassis, they served as entry-level "gateway" systems for home users during the Windows 7 era. Quick Technical Overview

They utilize 240-pin PC3-10600 DDR3 DIMM sockets. You can often max them out at 4GB.

Replacing the aging 500GB HDD with a cheap SATA SSD is the single best way to make these machines usable for basic office tasks today.

These machines were designed for light everyday tasks—web browsing, document editing, and basic media consumption.