| Model | HP Pro Tower 280 G9 PCI Desktop PC |
| SKU | 8A9T1AA#AKL |
| Processor | Intel® Core™ i5-12500 3.0GHz 18MB 6 cores 65W |
| RAM | 16GB (1x16GB) DDR4 3200 DIMM Memory |
| Storage | 512GB M.2 2280 PCIe NVMe Solid State Drive |
| Graphics (GPU) | Intel® UHD Graphics 770 |
| Optical Drive | None |
| Ports and Connectors | Front: 1 headphone/microphone combo; 2 SuperSpeed USB Type-A 10Gbps signaling |
| rate; 4 SuperSpeed USB Type-A 5Gbps signaling rate | |
| Rear : 1 HDMI; 1 line in; 1 line out; 1 power connector; 1 RJ-45; 1 VGA; 2 USB 2.0; 1 serial ; | |
| Optional Ports : 1 4x serial; 1 parallel; 1 PS/2; 1 serial; 2 USB 2.0 Type-A; 1 3-in-1 SD card reader | |
| Expansion slots | 1 full-height PCI; 2 M.2; 1 PCIe 3 x1; 1 PCIe 4 x16 (1 M.2 slot for WLAN and 1 M.2 2242/2280 slot for storage.) |
| Network | Realtek ac 2x2 +Bluetooth 5.0 WW WLAN |
| Power Supply | 180W EPA90 +12V |
| Keyboard & Mouse | HP Black 125 Wired Mouse & HP USB 320K Keyboard |
| Operating System (OS) | Windows 11 Pro 64 |
| Warranty | 3 Years Next Business Day Onsite Desktop Only Hardware Support Warranty Extension |
| Dimensions | 15.5 x 30.3 x 33.7 cm |
| Weight | 4.7 kg; (Exact weight depends on configuration.) |