Dell Inspiron 15 (3543, Early 2015) - Manual (Page 9)

Specifications
Views
System
Information
Memory
Ports and
Connectors
Dimensions and
Weight
Computer
Environment
Storage
Touch Pad Power Adapter Camera
Communications
Battery
Video Audio
Display
Media‑Card
Reader
Keyboard
Memory
Slot One SODIMM slot
Type DDR3L
Speed Up to 1600 MHz
Configurations supported 2 GB, 4 GB, and 8 GB