Never heard of that brand but no reason why it shouldn't work. Lenovo used Hynix, Samsung, Crucial, Micron, Elpida, and Ramaxel RAM. Nanya is also a good brand used by OEMs.
R500 can use PC3-8500s (1066), 10600s (1333), and 12800s (1600) 4GB sticks so long as they are 2rx8 or Dual Rank with 8 chips on each side. Single rank 4GB sticks are no good in Montevina and Arrandale Thinkpads.
The RAM will run at the speed to match the CPU's FSB.
If this photo is a representative, it does have micron chips in 16 chips total (2Rx8), this will work no problem, make sure to insist on what you will get before buying.