The MS2394 sub-model often comes with one RAM slot and 2GB soldered to the motherboard. This means to upgrade, you must remove the existing SODIMM and install an 8GB module, giving you a total of 10GB (2GB soldered + 8GB module). However, check your specific unit via Task Manager or CPU-Z. If you have 4GB total, you might have 2GB soldered + 2GB module, or 4GB soldered with no slot. Upgrade at your own risk; the N2840 struggles to address more than 8GB efficiently.
The chassis is plastic with a textured lid to resist fingerprints. Build quality is flexible but acceptable for stationary use. acer es1-512 ms2394 specs
Supports 2.5-inch SATA SSD upgrades for significantly faster performance Integrated Intel HD Graphics (Bay Trail architecture) The MS2394 sub-model often comes with one RAM