A-Tech 8GB KIT (4 x 2GB) for HP Compaq Elite 8100 Business PC (CMT,SFF) 8000 Convertible Minitower Small Form Factor 8100 8200 Microtower. DIMM DDR3 Non-ECC PC3-10600 1333MHz RAM Memory at Amazon.com
HP Compaq 8100 Elite Review: A small form factor HP desktop PC with a Core i5 CPU - Desktop PCs - Business PCs - PC World Australia
Restored HP 8100 Elite Desktop Tower Computer, Intel Core i5, 8GB RAM, 1TB HD, DVD-ROM, Windows 10, Black (Refurbished) - Walmart.com
HP Compaq 8100 Elite SFF i3 (Win10) – RefurbIT
HP Compaq Elite 8100 SFF | i5-6500 @ 3.2GHz | 4GB RAM | 250GB HDD | Windows 10 Professional | IRT