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#11
Your memory is a DDR3 1333 - 1.5V with CAS=9
CORSAIR ValueSelect 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1333 (PC3 10600) Laptop Memory Model CMSO8GX3M2A1333C9 - Newegg.com
I recommend you to buy one match pair of DDR3 1600 - 1.5V with CAS=9. It will operate as a DDR3 1333 but with lower CAS.
CORSAIR Vengeance Model CMSX8GX3M2A1600C9 Laptop Memory - Newegg.com
I don't think you will ever need or use more than 4G. If I were you I wold by a small SSD and caddy for the HDD. It will boost your laptop more than more memory. If you can afford both (memory and SSD) great.
There are two CD\DVD modules types: 9.5 and 12.7mm (height) You have to find out witch one you have
- External SATA/USB caddy for CD\DVD SODIAL semoic Laptop USB to Sata CD DVD RW Drive External Case Caddy - Newegg.com
- Internal HDD caddy
9.5mm SODIAL Hard Drive Caddy Tray 9.5mm Universal SATA 2nd HDD HD SSD Enclosure Hard Drive Caddy Case Tray, for 9.5mm Laptop CD / DVD-ROM Optical Bay Drive Slot (for SSD and HDD) - Newegg.com
12.7 mm Universal 12.7mm SATA 2nd HDD HD Hard Drive Caddy Adapter For Laptop CD / DVD-ROM Optical Bay, HP, DELL, Thinkpad, Sony, Toshiba, ASUS, Fujitsu, Acer etc. - Newegg.com
- SSD (120G) PNY CS900 120GB 2.5" SATA III INTERNAL Solid State Drive (SSD) - SSD7CS900-120-RB - Newegg.com
Or one big SSD (1T) SAMSUNG 850 EVO 2.5" 1TB SATA III 3D NAND Internal Solid State Drive (SSD) MZ-75E1T0B/AM - Newegg.com