Server Themed Memory Card Holder Unit

Feeling nostalgic towards my days working in IT Support, I thought I’d design a memory card holder in the style of a server rack. There are two sizes of racks, an 8 slot (8U) and 16 slot (16U). With four variants of the server : 1U Server - Miscellaneous Memory cards 2U Disk Array - MicroSD cards in the front with space inside for other types of cards 3U UPS - More space for cards and will comfortably fit five AA batteries. 4U Blade server enclosure - Has 3 types of blade server for Sony