A-Tech for Apple 8GB Kit (2X 4GB) DDR3 1067MHz / 1066MHz PC3-8500 SODIMM MacBook Pro (Late 2008 Early/Mid 2009 Mid 2010, 13/15/17 inch), iMac (Early/Mid/Late 2009, 20/24/21.5/27 inch) Memory RAM at Amazon.com
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® MacBook Pro Core I5 2.53 15" Mid-2010 Ddr3 - A35 at Amazon.com
Apple MacBook Pro 15" Mid 2010 i7 2.66GHz 8 Mb Ram 500Gb SSD Hard Drive | eBay
Amazon.com: Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac(Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) MAC RAM Upgrade :
8GB DDR3 RAM for iMac, MacBook, and Mac mini 2009-2010
Got my Mid 2010 MBP to run Mojave. Runs fine for now. Getting more ram and a data doubler to run RAID 0 so it'll run smoother : r/mac
16GB RAM in a Mid 2010 MacBook Pro | MacRumors Forums
Apple MacBook Pro A1286 Mid-2010, 15.4-inches, Core i5, 4GB RAM, 320GB HDD, Silver - Apple Force
Can I upgrade my MacBook mid 2010 to 16GB of RAM? (2x8G) - Ask Different
Macbook Pro 15" Mid 2010 USB, Kernel Panic and RAM Repair and Upgrade - Tech - Forum
15-inch MacBook Pro Mid 2010 Memory Installation Video - YouTube