HP ProDesk 400 SFF Desktop with 16GB RAM

A desktop that takes up too much room or lacks the connections for a practical work setup can make everyday tasks harder than they need to be. The HP ProDesk 400 SFF brings a compact business-PC format, Wi-Fi, and a mix of display and USB connections, with a keyboard and mouse included.

Its 16GB of RAM and SSD-plus-HDD storage suit routine computing, while the dual-core Intel Celeron G5905 sets a clear ceiling for more demanding work.

Technical details

This HP ProDesk 400 SFF uses an Intel Celeron G5905 dual-core processor, with a listed maximum speed of 3.5 GHz, and Intel UHD Graphics 610. It comes with 16GB of DDR4 RAM, a 256GB PCIe SSD, and a 1TB HDD. That split gives you a faster drive for startup and everyday responsiveness alongside a larger drive for files, it is a different approach from choosing a desktop with SSD storage only.

The system runs Windows 11 Pro and is listed with TPM 2.0 and HP Wolf Security. Its small-form-factor case measures 11.9 x 10.6 x 3.7 inches and weighs under 9 pounds. For peripherals and networking, the listed connections include HDMI, DisplayPort, USB Type-C, RJ-45 Ethernet, audio ports, three USB 3.0 Type-A ports, and six USB 2.0 Type-A ports. Wi-Fi support and a wired keyboard and mouse are included. The product listing also states support for two 4K displays.

What it works with

The HDMI and DisplayPort connections make this a fit for a desk setup built around compatible monitors, and the listing specifies dual 4K display support. Wi-Fi offers a wireless network option, RJ-45 Ethernet is there for a wired connection. The USB ports can serve everyday peripherals such as a mouse, keyboard, or other USB accessories, and the Type-C port adds another connection type. The included keyboard and mouse mean you can start with the basic input setup without sourcing those separately.

Usage tips

For a straightforward office setup, place the tower beside or under a desk, connect a monitor through HDMI or DisplayPort, and use Wi-Fi or Ethernet for network access. Keep frequently used files on the SSD when quick access matters, and use the HDD for larger collections of documents or media. If you plan to connect two 4K displays, make sure their inputs match the available HDMI and DisplayPort connections, the listing does not specify included monitors.

A solid pick if your day is mostly browsing, documents, email, and other routine desktop tasks and you want a compact system with several wired connections. You may want to skip it if your workload depends on a more capable processor for demanding creative work or intensive multitasking. The Celeron G5905 is a dual-core chip, so the generous RAM and two-drive setup do not make it a high-performance workstation.

Before you decide

Does it include a keyboard and mouse? Yes. The listing specifies a wired keyboard and mouse.

Can it run two 4K displays? The product name states dual 4K display support, with HDMI and DisplayPort listed among its connections.

How is its storage arranged? It combines a 256GB PCIe SSD with a 1TB HDD, rather than relying on one drive type alone.

Should you buy it?

Choose this ProDesk if you want a compact Windows 11 Pro desktop for everyday work, value having both SSD and HDD storage, and can use its listed display connections. Its included input devices and Wi-Fi help cover the basics, while the USB selection gives you room for wired accessories. The main tradeoff is the Celeron processor: this configuration is aimed at ordinary desktop use, not buyers who need a stronger CPU for heavier workloads. For that kind of work, a desktop with a more capable processor is the more sensible direction.