OEM memory from SK hynix. 2Rx8 (Dual Rank) module DDR3 memory. 

Technical Specifications:

• Memory Type: DDR3 SDRAM (Standard Voltage)

• Speed: 1600 MHz (PC3-12800S)

• Form Factor: SO-DIMM (Laptop)

• Pins: 204-Pin

• Rank: 2Rx8 (Dual Rank)