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HP Pro Mini 400 G9 Desktop PC
The HP Pro Mini 400 provides users with the commercial-grade performance, security, and the flexible deployment capabilities needed for small, varied workspaces. This reliable, ultra-small PC is powered to handle mainstream enterprise and SMBs with an 12th Gen 2.0 GHz Intel Core i5-12500T 6-Core processor and protected with always-on security you can trust.
12th Gen Intel Core i5-12500T Processor
Configure your HP Pro 400 Mini's CPU for a great combination of power, snappy performance, and value. A 12th Gen Intel Core i5-12500T 6-Core processor handles multiple work tasks smoothly and reliably with multiple processing cores to divide up the work.
The integrated Intel UHD Graphics 770 chipset delivers a sharp, clear picture, and you'll be able to output video using the HDMI 2.1 and DisplayPort 1.4a outputs. Connect to the internet via WiFi 6, or use the Ethernet for a more stable and reliable wired connection.
Convenient, Powerful USB
Access varied versions of USB-C ports on the front and rear of this HP Pro Mini, featuring 20 Gb/s USB-C, 10 Gb/s USB-A, and 5 Gb/s USB-A interfaces.
I/O Ports
Front:
- 1 headphone/microphone combo
- 1 SuperSpeed USB Type-A 10Gbps signaling rate
- 1 SuperSpeed USB Type-A 10Gbps signaling rate (charging)
- 1 SuperSpeed USB Type-C 20Gbps signaling rate
Rear:
- 1 power connector
- 1 RJ-45
- 1 SuperSpeed USB Type-A 10Gbps signaling rate
- 1 SuperSpeed USB Type-C 20Gbps signaling rate
- 2 SuperSpeed USB Type-A 5Gbps signaling rate
- 2 DisplayPort 1.4
- 1 HDMI 2.1
Tyler Bender
Reviewed in the United States on May 30, 2025
This product has been working great! Wifi is perfect. Low noise! Great value for money.
Ed Yelin
Reviewed in the United States on May 20, 2025
It's a great little machine! So far so good and I don't really have any major complains: takes very little space, doesn't overheat, performs fast and does everything I need it to do as far a everyday tasks go. My only gripe is that it comes with the wired mouse and keyboard hence the 4-star rating. Who uses wired these days? If the PC came with the wireless keyboard and mouse, I'd give it 5 stars.
SteveA
Reviewed in the United States on May 13, 2025
After only 8 months, Wi-Fi connectivity completely failed. Had to add a Wi-Fi dongle to get internet service. I just happened to have one laying around.
Sedge
Reviewed in the United States on May 12, 2025
Competitive price and performs as advertised.
Attempting Optimism
Reviewed in the United States on March 6, 2025
This system ran fine for several months before it started crashing every few days. "No boot device found". After a hard restart, would be OK, but only for a few days. SPENT 6 WEEKS and a zillion hours working with HP support, running a bunch of diagnostics, changing a bunch of settings, running Windows repair/recovery tools, updating whatever I could. Even bought a separate ($500) laptop (DELL!!) so that I'd have something to use if this HP crapped out completely. Finally gave up and bought a new SSD (another $120 out of my pocket), and THAT seems to have fixed it...so far. The HP Cloud Recovery Tool eventually worked to totally reinitialize the system, but it didn't work as documented and I had to trial and error my way to a (lucky) conclusion, plus re-install all my programs and restore my files from backup.This was my first HP. Always bought Dell before this. Won't get fooled again.UPDATE: The (re)seller reached out to me and offered to pay the cost of the replacement SSD (they added a larger SSD as an upgrade from the base SSD from HP). Admittedly, $120 is not a lot given all the diagnosing/rebuilding headaches I endured, but I accepted, and give them credit for genuinely trying. However, they should consider using a better SSD than the (old) Kingston NV2, which one reviewer called "a generic budget SSD with irregular hardware". I replaced it with the NV3, which the same reviewer called "a marked improvement on the NV2 and a reasonably good budget SSD". Here's a marketing idea: Give the buyer a couple choices for components of different quality/cost.
Chris
Reviewed in the United States on March 2, 2025
Have deployed these at most of our apartment communities for 2 years. Haven’t had a single issue with all 13 of them. Quick & small computer. I also have one at home running some small home-lab stuff just because it fits nicely on a rack shelf. Super quiet, comes with keyboard and mouse which is nice. Doesn’t put off a ton of heat either. Internal WiFi chip is actually pretty good too. Perfect little machine!
Tarek T
Reviewed in the United States on June 29, 2024
The HP Pro Mini 400 G9 Business Mini Desktop Computer has exceeded my expectations in several ways. Here’s why I believe it’s a fantastic choice for both business and personal use:Performance: Equipped with the 12th Gen Intel Hexa-Core i5-12500T processor, this mini desktop delivers impressive performance. It handles multitasking with ease, running multiple applications smoothly without any lag. Whether it’s for heavy business applications or day-to-day tasks, this machine performs exceptionally well.Compact Design: One of the standout features is its compact size. The mini desktop takes up minimal space on my desk, which is perfect for a clutter-free workspace. Despite its small form factor, it doesn’t compromise on power or functionality.Build Quality: The build quality is robust and durable. HP has done an excellent job in designing a sturdy and reliable machine that feels premium. It’s clear that this desktop is built to last.Connectivity: The variety of ports available on this mini desktop is commendable. It includes multiple USB ports, HDMI, and DisplayPort, which makes it versatile for connecting various peripherals. The connectivity options are well thought out and cater to different needs.Quiet Operation: Even under load, the HP Pro Mini 400 G9 runs quietly. This is a significant advantage, especially in a business environment where a noisy machine can be distracting.Energy Efficient: This desktop is energy efficient, which is not only good for the environment but also helps in reducing electricity costs. It’s great to see a powerful machine that is also mindful of energy consumption.Value for Money: Considering the features and performance, the HP Pro Mini 400 G9 offers excellent value for money. It’s a worthy investment for anyone looking for a reliable and powerful mini desktop.In conclusion, the HP Pro Mini 400 G9 Business Mini Desktop Computer is a stellar choice for those needing a compact yet powerful desktop. Its performance, build quality, and design make it a top contender in its category. Highly recommended for both business and personal use!
Dave Gossett
Reviewed in the United States on December 20, 2024
Great machine with an exceptional performance processor. Comes with Windows 11 Pro which was an upgrade to replace an older Windows 10 machine. Though this is an I5 processor; it performs more like an I7 and has 32 GB of memory and a 1 TB SSD. USDT super small footprint which I purchased an optional VESA mounting bracket to mount the unit on the back of my monitor to clear up space on my desk.Price was favorable and performance is a welcomed change.
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