This one has the upgraded 4GB ram inside. It is diskless and ready for your hard drives! We had 6TB drives in it at the time we replaced, so I know it handles those, maybe larger. Synology makes some amazing products! The item "Synology DiskStation 5-Bay (Diskless) NAS DS1512+ with RAM upgrade" is in sale since Sunday, September 15, 2019.This item is in the category "Computers/Tablets & Networking\Drives, Storage & Blank Media\Hard Drives (HDD, SSD & NAS)\Network Attached Storage". The seller is "wendi413m" and is located in Crossville, Tennessee. 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, China, 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, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Antigua and barbuda, Grenada, Saint kitts and nevis, Brunei darussalam, Bolivia, Egypt, French guiana, Gibraltar, Guadeloupe, Iceland, Jordan, Cambodia, Sri lanka, Luxembourg, Martinique, Maldives, Oman, Uruguay.