Amazon.com: HP ProDesk 400 G5 SFF High Performance Business Desktop Computer, Intel Six Core i5-8500 up to 4.1GHz, 16G DDR4, 256G SSD, WiFi, BT, 4K Support, DP, VGA, Windows 10 Pro 64
Amazon.com: HP Business ProDesk 400 G7 Desktop Computer Intel Core i3-10100 8GB RAM 256GB SSD : Electronics
Amazon.com: HP ProDesk 400 G7 Tower Business Desktop, Intel Core i5-10500 Processor, 16GB RAM, 1TB PCIe SSD, DisplayPort, HDMI, RJ45, DVD-RW, Wired Keyboard & Mouse, Windows 11 Pro, Black : Electronics
Amazon.com: HP ProDesk 400 G4 SFF Business Desktop Computer, Intel Core i7-6700 up to 3.6GHz, 16GB DDR4 RAM, 512GB SSD, VGA, WiFi, BT,RGB Keyboard & Mouse, Wins 10 Pro, Multi-Language Supports (Renewed),
Amazon.com: HP Smart Buy PRODESK 400 G5 SFF : Electronics
Amazon.com: HP ProDesk 400 G5 SFF High Performance Business Desktop Computer, Intel Six Core i5-8500 up to 4.1GHz, 16G DDR4, 256G SSD, WiFi, BT, 4K Support, DP, VGA, Windows 10 Pro 64
Amazon.com: HP ProDesk 400 G5 Mini Desktop, Intel 9th Gen Core i5-9500T, 8GB RAM, 256GB SSD, Windows 10 Pro (Renewed) : Electronics
Amazon.com: HP Pro SFF 400 G9 Desktop Computer - Intel Core i3 12th Gen i3-12100 Quad-core (4 Core) 3.30 GHz - 8 GB RAM DDR4 SDRAM - Small Form Factor : Electronics
HP Pro and Elite Desk 400, 600, 800 SFF G3-G5(6) key differences - YouTube