Question 1

Should I choose the HP Pro Mini 400 G9 i5-14500T or the i7-14700T version?

Accepted Answer

Choose the i5-14500T version for a business mini PC with a 14-core, 20-thread processor, 16 GB memory, and a 512 GB SSD. The i7-14700T option raises the processor count to 20 cores and 28 threads, making it the HP Pro Mini 400 G9 configuration to consider for heavier parallel workloads.

Question 2

HP Pro Mini 400 G9 i5-14500T vs HP Elite Mini 800 G9: which is more suited to CPU-heavy work?

Accepted Answer

For CPU-heavy work, the reviewed HP Elite Mini 800 G9 configuration with a Core i5-14500 is the higher-performance choice in Notebookcheck’s Geekbench 5.5 multicore test: it scored 10,543, compared with 9,122 for the reviewed Pro Mini 400 G9 with an i5-14500T. Choose this Pro Mini 400 G9 configuration for its listed 16 GB RAM and 512 GB SSD business setup; choose the reviewed Elite Mini 800 G9 configuration when that measured multicore advantage is the priority.

Question 3

HP Pro Mini 400 G9 i5-14500T vs i5-12500T: what does the newer configuration add?

Accepted Answer

Choose this i5-14500T configuration for its 14-core, 20-thread processor and 24 MB L3 cache. The i5-12500T option has 6 cores, 12 threads, and 18 MB L3 cache. Both are available in the Pro Mini 400 G9 family, so the i5-14500T version is the more capable fit for workloads that benefit from more cores and threads.

Question 4

Can it run two monitors?

Accepted Answer

The listing specifies two DisplayPort 1.4a video outputs, so it can connect to two DisplayPort monitors. Check that your monitors have compatible inputs or that you have the appropriate adapters.

Question 5

Is it a good choice for gaming?

Accepted Answer

It is better suited to business and everyday computing than demanding gaming. It uses integrated Intel UHD Graphics 770 rather than a listed dedicated graphics card, so gaming performance will depend on the title and settings; check each game’s requirements before purchase.

Question 6

Does it come with a monitor?

Accepted Answer

No. The product information says a monitor is not included. The package contents list the PC, power adapter, keyboard, and mouse.

Question 7

Is this mini PC suitable for everyday office work and video meetings?

Accepted Answer

Yes. Its Intel Core i5-14500T, 16 GB of memory, 512 GB NVMe SSD, and Windows 11 Pro make it suited to typical office tasks such as documents, spreadsheets, browsing, and video meetings. You’ll need to connect a monitor; a webcam is not listed as included.

Question 8

Can the memory be upgraded later?

Accepted Answer

The listing states a maximum supported memory of 64 GB and two memory slots, but also lists both slots as occupied by the included 2 × 8 GB configuration. An upgrade may require replacing the existing modules; confirm the exact configuration before buying or servicing it, since component configurations may vary.

Question 9

Can I upgrade the memory or storage later?

Accepted Answer

The listed configuration has two memory slots, both occupied by 8 GB modules, and lists support for up to 64 GB; expanding RAM would therefore require replacing one or both modules. HP’s Pro Mini 400 G9 service video shows memory and M.2 SSD removal and replacement. Check the exact unit and warranty terms before making changes.

Question 10

Is this a good fit for office work with several apps open?

Accepted Answer

It is a reasonable fit for typical office multitasking: this configuration has a Core i5-14500T, 16 GB of RAM, a 512 GB SSD, and Windows 11 Pro. A Reddit discussion about a closely related HP Elite Mini with the same processor considered it for multiple documents, spreadsheets, browser tabs, and occasional Photoshop; that discussion also flagged memory configuration as relevant to graphics-heavy work. This listing specifies 16 GB as 2 x 8 GB, but not performance in a particular workload.

LAN Speed	10/100/1000Mbps
WLAN	802.11ax Wireless LAN

Brand	HP
Series	Pro Mini 400 G9
Model	Pro Mini 400 G9
Part Number	DQ5N8AT#ABA

Release Year	2026
Usage	Work / Business
Color	Jack Black
Processor	Intel Core i5 14th Gen
Cache Per Processor	24 MB L3 Cache
Memory	16 GB DDR5
Storage	512 GB SSD
Audio	Sound card - Integrated
Ethernet	Gigabit Ethernet
Wireless Card	IEEE 802.11ax
Power Supply	90 W
Monitor	Monitor not included
Cooling System	Air Cooling
Speaker	Internal Speaker
Keyboard	English
Mouse	USB Mouse
Windows 11	Ready
Software Included	HP Wolf Pro Security Edition
Special Features	Security Slot Tool-less Access Low Halogen
External I/O Ports	4x USB Type-A

CPU Base Frequency	1.70GHz
Turbo Frequency	4.8 GHz
L3 Cache Per CPU	24 MB
CPU Socket Type	LGA 1700

GPU Memory	16 GB DDR5-4800
Graphics Card	Intel UHD Graphics
Graphics Interface	Integrated video

Best Sellers

Meet Your Seller

Sponsored Products

HP Pro Mini 400 G9 Desktop Mini PC - Intel Core i5-14500T - 16 GB - 512 GB PCI Express NVMe SSD - Windows 11 Pro - Intel UHD Graphics 770 - Wi-Fi 6E (IEEE 802.11ax) - 90W - DQ5N8AT#ABA

Learn more about the HP Pro Mini 400 G9

Customer Reviews of the HP Pro Mini 400 G9

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Memory Speed	DDR5 4800
Form Factor	Mini PC
Memory Spec	8 GB x 2
Memory Slot (Total)	2
Memory Slot (Available)	0
Memory Slots (Available/Total)	2 total
Maximum Memory Supported	64 GB

LAN Chipset	Intel Q670
WiFi Generation	Wi-Fi 6
Bluetooth	Bluetooth 5.3

Display
Screen Size	No Screen
Touchscreen	No

Back Panel Ports
Video Ports	2 x DisplayPort 1.4a
Rear USB	3
RJ45	1 port

Dimensions & Weight
Dimensions (H x W x D)	1.3 x 7 x 6.9
Weight	3.13 lb

Item#: 9SIA8H5M6G2874