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HP Pro Tower 400 G9 review

Driving Business Success with HP Pro Tower 400 G9: A Comprehensive Review

Jamie Finch
The introduction of computers in the workplace increased efficiency and helped produce better results. And even though the earliest business computers helped revolutionise how we work, the latest options are far more powerful.
Modern computers need to fill a wide range of roles, and one of the most common is office work. You will find offices and other business locations around the world, with staff using computers to work through their tasks.
The HP Pro Tower 400 G9 has been made with professionals in mind and comes well-equipped to handle day-to-day office tasks easily. We’ve created this brief HP Pro Tower 400 G9 review to highlight why this machine is the ideal option for many UK business professionals.

What to look for in a business desktop?

If you’re looking for a desktop that will help you work through business-related tasks, then you should look for a machine with particular hardware and other features. Some of the most important features of a suitable business machine include:

Powerful CPUs

Most professionals need a machine that helps them power through their tasks quickly, in which case, you will need a powerful central processor unit (CPU). A good CPU is an essential component for speed because it processes data coming from other components. If you’re CPU is not fast enough, then you may experience backlogs and performance issues.

Plenty of RAM

Random access memory (RAM) has a significant influence on how fast your machine is. RAM helps your CPU and other components process data and the more RAM you have, the quicker your machine will be. Today’s budget computers usually start at 8GB RAM, although many users might need more for sufficient performance.

Sufficient storage capacity

HP Pro Tower on desk
You will need a place to keep your files, and many business computers come with 512GB of storage capacity which is plenty for most people. Larger capacity options are also available, while you can also consider using external storage with other devices or online.
Regardless, it’s also best to remember that solid-state drive (SSD) storage is faster than hard disk drive (HDD) storage. Unlike HDD drives, SSDs don’t use disks that have to spin so a laser can read the data. And while each spin takes just a fraction of a second, the time quickly adds up when dealing with large files.
Because you don’t have to wait for the disks to rotate, data can be stored and retrieved considerably faster than HDD drives. SDD drives are also less likely to experience technical problems, and they take up less space in your machine.

Reliable security features

Business computers will often contain sensitive files that are a potential target for hackers. This makes security an essential consideration for many. And bear in mind you will face potential threats online and offline. As such, you will need comprehensive protection that’s available 24/7.
The good news is that many business computers come with security features that will help ensure the safety of your data. Such features can protect your machine from all manner of attacks, letting you work in confidence.

Professional aesthetics

The importance of making the right first impression cannot be overstated, and the technology you use can make a significant difference. Business computers should ideally have professional aesthetics, with smart and tidy designs. You will also find some stunning-looking machines that will help make it look as though you mean business.

Reliable GPUs

Graphics processor units (GPUs) are responsible for converting raw data into the images you see on your screen. In most cases, a business computer won’t need high-end (GPUs), depending on the nature of the work at hand. This is good news for many businesses because GPUs are among the most expensive of all computer components. Not only that but modern, inexpensive GPUs will still bring clear images to your screen that help you work effectively.

Key features of the HP Pro Tower 400 G9

The HP Pro Tower 400 G9 desktop has numerous features that help make it an ideal choice for professionals. Some of the most important features include:

Powerful CPU technology

This machine lets you choose between an Intel® Core™ i5 or an Intel Core i7 CPU. The i5 version is suitable for most tasks and is relatively affordable. Anybody who needs to run more advanced software might need the i7 instead to enhance the performance of the HP Pro Tower 400 G9.

Storage and RAM

HP Pro Tower 400 G9 features include 16GB RAM that will help it power through most business-related tasks easily. A 512GB SSD storage capacity provides all the space most could need while also ensuring a fast-running machine.

State-of-the-art security systems

HP Pro Tower 400
The HP Pro Tower 400 G9 lets you work with peace of mind that your valuable data is kept safe from online and offline threats.
This machine uses HP’s state-of-the-art Wolf Pro Security technology that you’ll also find in many upper-range models. This technology includes HP Sure Start Gen7 which lets the BIOS heal itself automatically after a firmware attack. A firmware attack might otherwise destroy your machine in addition to exposing important data.
This computer also uses HP’s Sure Sense technology which will help protect your machine against malware. Sure Sense uses advanced AI algorithms and machine learning to keep you safe against ever-evolving threats that might not be detected by anti-malware software.

Multiple connectivity options

It’s common for business desktops to need access to tools like external storage devices, projectors and printers. The good news is that this HP workstation for business comes with plenty of ports that let you integrate other devices seamlessly. These ports include a USB 3.1 Gen2 port, 3 SuperSpeed USB Type-A ports, an HDMI 1.4 port and a DisplayPort™ 1.4 port.
Not only that, but this machine also offers excellent internet connectivity thanks to a Bluetooth 5.3 wireless card and Realtek WiFi 6.

Silent running

Most computers need fans to help keep them cool. Otherwise, they will start suffering from performance issues and overheating can also result in damage. Unfortunately, fans can be noisy, potentially distracting you from your work and irritating others around you.
Fortunately, this machine has an effective yet quiet cooling system that you will barely hear, even when it’s working hard. As such, you can focus on your work with a workstation that will consistently operate at optimal levels.

Multiple display support

Many workers will need multiple apps open at any one time. However limited screen space can result in a lot of clutter that makes it harder for you to work. The good news is that the HP Pro Tower 400 G9 will let you use up to 3 separate displays, helping you work more productively.

Sleek, no-nonsense looks

The HP Pro Tower 400 G9 Desktop is designed to be a no-nonsense workstation with more focus on function than form. However, the machine still comes in a sleek, all-black case that fits perfectly into office environments. It may not be as flashy as many other options, but that’s exactly what many professionals need.

BIOS management

Many businesses have IT departments that help ensure computers and other equipment are running smoothly and securely. The HP Pro Tower 400 G9 Desktop uses HP’s Sure Admin technology that lets IT support teams gain direct access to the machine’s BIOS easily over a network. This feature means IT departments can work more efficiently and less intrusively, leaving you to focus on your tasks.


This machine has been made with sustainability in mind and uses as little power as possible even when working hard. And not only will this help reduce pollution, but it can also help to reduce your energy bills.
Not only that, but this model also comes in moulded-pulp packaging that helps reduce our demands on natural resources.

Workplace graphics

As mentioned, most business machines focus on speed, safety and functionality over high-quality graphics. This model is no exception and has an Intel UHD Graphics 770 card that produces good-quality images that are all that most businesses need.
Bear in mind that computer technology has advanced considerably over the years, and today’s lower-end GPUs will easily outperform older models. As such, this machine’s graphics card will clearly display software interfaces and spreadsheets, etc., while it will also play movies and some games.


Overall, the HP Pro Tower 400 G9 makes a reliable workstation that will help you power through your work quickly. Powerful CPUs are supported by other components that ensure impressive performance, while the G9 also offers numerous ports for added functionality.
The HP Pro Tower also offers excellent security, giving you peace of mind in knowing your sensitive data is safe. This machine also offers easy BIOS access to IT teams and is energy efficient, helping you keep our environment safe for future generations.
And while this machine is ideal for offices and other workplaces, it’s also a good option for use at home. The processing speed will help you power through day-to-day tasks easily while you can use this computer for entertainment once you get a chance to rest.

About the Author

Jamie Finch is a contributing writer for HP Tech Takes. He's an experienced writer with almost 20 years of writing under his belt. He has a focus on marketing topics but enjoys writing on pretty much any subject under the sun. In his spare time, Jamie enjoys gaming, virtual reality workouts, and relaxing with friends and family.

Disclosure: Our site may get a share of revenue from the sale of the products featured on this page.


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