Is this a good laptop? ThinkPad x220 i7-2620M, 8 Gb ram, IPS screen. How to get 5 ghz WiFi and bluetooth 4 or 5 on it? Maybe some other useful upgrade? : r/thinkpad
CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad X220 4287, 4290, 4291 Ddr3-1333 - A13 at Amazon.com
Upgrade RAM in a ThinkPad X220 - Dodoid's Idiot Proof Guides - YouTube
GENUINE LENOVO THINKPAD X220 X220i MEMORY RAM COVER DOOR 04W1416 GRADE B | eBay
Amazon.com: Lenovo ThinkPad X220 42872WU 12.5-Inch Notebook Computer (Intel Core i5-2520M,4GB RAM, 320GB HD, Windows 7 Professional), Black : Electronics