Manual, page 2-3
http://h10032.www1.hp.com/ctg/Manual/c04438537
Two SODIMM customer-accessible/upgradable memory module slots
DDR3L-1600-MHz dual channel support
DDR3L-1600-MHz single channel support
Supports
up to 12 GB max system memory (DDR3L-1600MHz module), (select models only)...