 The physical design of the enclosures has not changed since the first versions (other than the larger LCD screen at the front compared to the first generation enclosures, and new plastic covers and HPE branding on the 3rd generation enclosures).The HPE ProLiant MicroServer line of products are entry-level, low power, compact, and affordable servers meant for small business, home office, or edge computing.They offer user upgradable components and easy access to hard drives.