20 x 4GB Memory DDR3-1600 PC3-12800S SO-DIMM Apple Certified Laptop RAM. 20 x 4GB DIMMS DDR3-1600. Certification: We specialize in quality pre-owned/refurbished Apple computers.All computers are thoroughly tested by our certified technicians, cleaned and go through a 36-point certification process. All computers and components are 100% tested, and listed with the test results. Please report any issues to us within 5 days and send us a photo to show the damage/issue. We will attempt to resolve your issue or send you a label for return. Macs4u is a Minnesota-based company dedicated to delivering the best value in pre-owned Apple Macintosh computers. Our roots with Apple Macintosh computers started in 1984 (starting with the famous Mac Classic 512k), providing computer hardware and software support for Macs and PC's. In 2000 we started offering pre-owned Apple computers and have been at it ever since. We are happy to answer any questions you may have. The item "20 x 4GB Memory DDR3-1600 PC3-12800S SO-DIMM Apple Certified Laptop RAM" is in sale since Monday, July 8, 2019. This item is in the category "Computers/Tablets & Networking\Computer Components & Parts\Memory (RAM)".com-store" and is located in Hopkins, Minnesota. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay, China.