Transcend TS512MSK64W6H 4GB DDR3L 1600 SO-DIMM Memory Module at Amazon.com
OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com
CMS 4GB (1X4GB) DDR3 10600 1333MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Pavilion Dm4-2035Br, Dm4-2030Es, Dm4-2030Ss - A30 System Specific Memory - Newegg.com
HP 641369-005 - 4GB (1x4GB) 1600Mhz PC3-12800S DDR3-1600 204-Pin SODIMM Laptop Memory Ram - CPU Medics
4GB DDR3L Low Voltage 1600 MHz (PC3-12800) CL11 SODIMM - Notebook RAM | Dell USA
Samsung ram Memory 4GB (1 x 4GB) DDR3 PC3-12800,1600MHz, 204 PIN, SODIMM for laptops at Amazon.com
RAM DDR3 1600MHz 4GB DIMM | Computer Accessories | Parts | United States