 "Crucial - DDR3 8 GB DIMM 240-pin" " Crucial 240-pin CT102464BD186D System Memory (RAM) CDW.com
"Expand the memory of your laptop with the Crucial System Memory. Ensure lag-free functioning and efficient multitasking by upgrading you system with this 8 GB DDR3 SDRAM. With Non-ECC parity and a CAS latency of CL13, it reduces delay and enables quick loading of programs. It is compatible with motherboards having DIMM 240-pin slots and DDR3-enabled chipset. Working at a supply voltage of 1.35 volts, this unbuffered system memory delivers an energy-efficient performance.8 GB RAM for PC to improving your system functionalityHigh data transfer rate with a memory speed of 1866 MHz" 
 "Corsair Vengeance SODIMM 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz Kit (CMSX8GX3M2A1600C9)"@en "▷ Corsair 1600MH… | OcUK"@en
"1600MHz RAM Speed, CAS 9-9-9-24 Timings, 1.5v SODIMM, Lifetime Warranty with Corsair."@en 