Desktop PC HP Pro 400 G9 SFF — Intel Core i5-12500, 16GB DDR5, 512GB NVMe SSD, Intel UHD 770, Windows 11 Pro

HP Pro 400 G9 SFF is a compact business desktop that balances performance and space efficiency. It is built around a 12th-generation Intel Core i5-12500 processor (6 cores, 12 threads, up to 4.6 GHz), 16 GB of DDR5-4800 memory (1 x 16 GB, upgradable to 64 GB), and a 512 GB NVMe PCIe SSD. Integrated Intel UHD Graphics 770 provides basic graphics capabilities. The small form factor chassis includes Wi‑Fi 6, Bluetooth, Gigabit Ethernet, DisplayPort 1.4, HDMI, multiple USB ports, DVD‑RW optical drive, TPM 2.0 and Windows 11 Pro, making it suitable for standard office and productivity environments.

Advantages

The system delivers a balance of modern CPU performance and fast DDR5 memory with NVMe storage for responsive multitasking and application loading. Its compact SFF design reduces workspace footprint while offering a variety of ports and expansion slots (PCIe x16 Gen4 and PCIe x1) for future upgrades. Business-oriented features such as TPM 2.0, power-on password protection and HP management tools support security and IT maintenance.

Suitable for

• Office productivity and administrative tasks
• Remote work and home office setups
• Web browsing, email and document editing
• Light content creation and multitasking

Key specifications

• Processor: 12th gen Intel Core i5-12500, 6 cores / 12 threads, base 3.0 GHz, boost up to 4.6 GHz, 18 MB L3 cache
• Memory: 16 GB DDR5-4800 (1 x 16 GB), upgradable to 64 GB, 2x DIMM slots
• Storage: 512 GB NVMe PCIe SSD (one SSD installed)
• Graphics: Integrated Intel UHD Graphics 770
• Chipset: Intel Q670
• Operating system: Windows 11 Pro, 64-bit
• Networking: Wi‑Fi 6 (802.11ax), Bluetooth, Gigabit Ethernet
• Ports: DisplayPort 1.4, HDMI 1.4, 1x USB-C (3.2 Gen 2), 3x USB-A (3.2 Gen 2), 3x USB-A (3.2 Gen 1), 2x USB 2.0, combo headphone/mic, line-out, RJ-45
• Expansion: 1x PCIe x16 (Gen4), 1x PCIe x1 (Gen3)
• Optical drive: DVD‑RW
• Power supply: 240 W (100–240 V, 50–60 Hz)
• Dimensions (W×D×H): 270 × 95 × 270 mm; weight: 4.2 kg
• Environmental: Operating temperature 10–35 °C; relative humidity 10–90%
• Security & management: TPM 2.0, power-on password protection, HP management tools
• Sustainability: EPEAT certified; total product carbon footprint reported

How to use

Place the desktop on a stable, ventilated surface with the rear ports accessible. Connect power and required peripherals such as monitor(s), keyboard and mouse, then power on the system. Windows 11 Pro is preinstalled; follow on-screen setup to configure user accounts, network connections (Wi‑Fi or Ethernet) and Windows updates. Use the available DisplayPort or HDMI outputs to connect displays and the USB ports for external devices. For additional storage or expansion install compatible PCIe cards or an extra drive in the provided bays following HP service documentation.

Recommendations

For reliable operation, keep ventilation areas clear and maintain ambient temperature between 10 °C and 35 °C. Upgrade memory in matched DDR5 modules and follow HP guidance when adding storage or expansion cards; use available HP management tools and Windows updates to keep firmware and drivers current.