Kingston Hyperx Black RAM Memory 8GB, 1600MHz DDR3

[masterako]

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Compatible ni sa PC3L-12800U?

Not sure sir. You can check specs here.
HyperX Black Series 8GB 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX16C10B1B/8-Newegg.com

Pero I think its better na same brand/model ung bilhin mo to be on the safe side.