HP - P16006-421 - ProLiant MicroServer Gen10 Plus Performance - Server - Ultra-Micro-Tower - 1-way - 1 x Xeon E-2224 / 3.4 GHz - RAM 16 GB - SATA - non Hot-Swap 8.9 cm (3.5") - no HDD
HP N40L aka Build Your Own Cheap NAS
HP ProLiant MicroServer N40L Review | Lonewolf Online
4GB Memory for HP ProLiant N36L N40L MicroServer DDR3 ECC UDIMM RAM | eBay
HP Microserver N40L Home Lab Server / ML110 G6/7 Comparision - vBrain.info