Dell Inspiron 15 (5543, 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
Slots Two SODIMM slots
Type Dual channel DDR3L
Speed 1600 MHz
Configurations supported 2 GB, 4 GB, 6 GB, and 8 GB