Dell Alienware Alpha (Late 2014) - Manual (Page 6)

Specifications
Views
System
Information
Memory
Ports and
Connectors
Dimensions and
Weight
Storage Communications Video Audio
Power Adapter
Computer
Environment
Memory
Connector Two SODIMM slots
Type DDR3L
Speed 1600 MHz
Configurations supported 2 GB, 4 GB, 8 GB, and 16 GB