2 modules of 4GB each. Total of 8GB PC3-10600S PC3-12800S Macbook memory. ITEM is in VERY GOOD working and cosmetic condition. Actual item pictured. 30 Days Warranty, Money Back guaranteed. Bid with confidence, buy from a trusted seller!Items ship within 24 hours, after payment received (unless weekend or holiday). If for some reason you are not satisfied with received item, e-mail us through messages. Please do not leave negative feedback before contacting us. Customers satisfaction is important to us, money back guaranteed! We value your time and business. Make the best deals with us.Happy online shopping! NC