Kingston 4GB DDR3 1600MHz SO-DIMM RAM module. Designed for reliable performance, this memory is ideal for everyday computing, multitasking, and system maintenance. This is a single 4GB module compatible with laptops that support DDR3 204-pin SO-DIMM (PC3-12800) memory. Item Specifics -Brand: Kingston -Manufacturer Part Number: KTH-X3CL/4G -Capacity: 4GB -Memory Type: DDR3 SDRAM -Speed: 1600MHz -Bus Speed: PC3-12800 -Form Factor: SO-DIMM -Pins: 204-Pin -Voltage: 1.5V -ECC: Non-ECC -Buffered/Registered: Unbuffered -Compatible With: Laptop / Notebook -Number of Modules: 1 × 4GB