 "Crucial 4 GB SO-DIMM 204-pin DDR3L SDRAM" " Crucial SDRAM - CT51264BF160BJ System Memory (RAM) CDW.com
"Help your laptop perform at its best. Designed to help your laptop run faster and smoother, a Crucial memory upgrade is one of fastest, most affordable, and easiest ways to improve your system's performance. Crucial memory empowers your laptop to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. What does this mean? Spend less time staring at loading screens and more time getting stuff done. Crucial laptop modules are rigorously tested at both the component and module levels to ensure that your memory meets the stringent compatibility and performance standards. Every module Crucial manufactures is inspected by the Systems Compatibility Group before it leaves the doors. At a fraction of the price of your laptop, an investment in Crucial memory helps your system get up to speed." 
 "Corsair Memory 8GB Vengeance Performance DDR3 SO-DIMM 1600 MHz 9 Dual Channel Laptop"@en Laptop LN42528 - CMSX8GX3M2A1600C9 | SCAN UK"@en
"8GB (2x4GB) Corsair Vengeance Performance DDR3 SO-DIMM PC3-12800 (1600), 204 Pin, Non-ECC Unbuffered, CAS 9-9-9-24, 1.5V "@en 
 Specifications Size 8GB (2x4GB) Memory Model Vengeance Performance Max. Memory Channels Provided by Kit   Memory Type DDR3 SO-DIMM Memory Type (ECC) Non-ECC Memory Type (R/U) UDIMM (Unbuffered) Memory Speed PC3-12800 (1600) Pins 204 CAS Latency 9-9-9-24 Voltage 1.5 V Validated Compatible with   Cooler   Features  