PC laptop ram PC3 - 4 Gig (2G x 2) or 8Gig (4Gx2) DIMM
Memory 4 or 8 Gig ram pc3-10600 for iMac or MacBook, laptops, HP etc,\ have several of 2 gig sticks ($18 ea) and 4 gigs sticks ($25 ea) Please make sure that these are compatible with your device. Pick up Yama or I can do postage for additional $5