Item Height: 30mm Item Width: 3mm Item Length: 133mm Number of Pins: 204 Number of Modules: 1/2/4 Capacity per Module: 8GB Total Capacity: 8GB/16GB/32GB Type: DDR3 (PC3L- 12800S) Memory Features: SODIMM Speed: DDR3 1600MHZ  Rank:2Rx8 (DR / Dual Rank) Package List? 1/2/4X Samsung 8GB DDR3L 1600 MHz PC3L-12800S 204pin 1.35V Laptop Memory Ram