• Type: DDR4 SO-DIMM 260-Pin. This module is backward compatible with slower DDR4 speeds. • Capacity: 8GB (Single Rank - 1Rx8). • 1x Samsung 8GB DDR4-2666 SODIMM RAM module (M471A1K43CB1-CTD). This RAM is ready to install and will provide a noticeable performance boost in compatible systems.