| Base model | HP ProDesk 400 - A Grade |
| Processor | Intel® Core™ i3-4130 CPU @ 3.4GHz |
| Graphics | Intel® HD Graphics 4400 |
| Memory | 4GB DDR3 PC3-12800 (800MHz) |
| Storage | Seagate Barracuda 500GB HDD |
| Operating system | Windows 10 Professional included |
| Additional features | 1 x Realtek PCIe Gigabit Ethernet adapter |
| 1 x DVD RW ODD | |
| 2 x USB 3.0 Front Panel ports | |
| 2 x USB 2.0 Front Panel ports | |
| 4 x USB 2.0 Rear Panel ports | |
| 1 x VGA display port | |
| 1 x DVI-D display port | |
| 1 x 9 pin serial port | |
| Keyboard and mouse PS2 ports | |
| Front and rear audio ports | |
| Monitor and peripherals not included |