HP ProOne 400 G3 20-inch Non-Touch All-in-One PC reviews
Product specifications and review coverage for this exact model.
COR ScoretbdAvailable after 3 critic reviews0 critics
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Product overview
HP 3EC52EA is listed in the all-in-one pcs/workstations category. The recorded specifications include processor family: Intel® Core™ i5; internal memory: 4 GB; total storage capacity: 256 GB; operating system installed: Windows 10 Home. This entry covers manufacturer code 3EC52EA. Specifications relate to this exact source record; other editions or packages may differ.
Automatically assembled from the source specifications. This is a factual summary, not a hands-on review.
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Specifications
Manufacturer code: 3EC52EA. Icecat product 50448732 · Checked 20 Sep 2026. The source lists this code for Great Britain. No specifications are transferred from other editions.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — key specifications
Processor family
Intel® Core™ i5
Processor model
i5-7500T
Memory (RAM)
4 GB
Total storage capacity
256 GB
Storage media
SSD
Operating system installed
Windows 10 Home
Discrete graphics card model
Not available
Ethernet LAN
Yes
More product specifications
Open a section for the details that matter to you.
Audio & listening5 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Audio & listening
Configurable TDP-down frequency
1.7 GHz
Built-in speakers
Yes
Rated audio power (RMS)
2 W
Microphone in
No
HP speaker type
HP Dual Speakers
Display8 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Display
Screen size
50.8 cm (20")
Screen resolution
1600 x 900 pixels
Touchscreen
No
Display surface
Matt
Screen shape
Flat
Colour gamut
72%
Number of displays supported (on-board graphics)
3
Detachable display
No
Processor, memory & storage42 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Processor, memory & storage
Processor manufacturer
Intel
Processor generation
7th gen Intel® Core™ i5
Processor cores
4
Processor threads
4
Processor boost frequency
3.3 GHz
Processor frequency
2.7 GHz
Processor cache
6 MB
Processor cache type
Smart Cache
Processor socket
LGA 1151 (Socket H4)
Processor lithography
14 nm
Processor operating modes
64-bit
Processor codename
Kaby Lake
Maximum internal memory supported by processor
64 GB
Conflict-Free processor
Yes
Memory types supported by processor
DDR3L-SDRAM, DDR4-SDRAM
Memory clock speeds supported by processor
1333,1600,2133,2400 MHz
Memory channels supported by processor
Dual
ECC supported by processor
No
Memory voltage supported by processor
1.35 V
Internal memory type
DDR4-SDRAM
Maximum internal memory
32 GB
Memory slots
2
Memory slots type
SO-DIMM
Memory clock speed
2400 MHz
Memory layout (slots x size)
1 x 4 GB
SSD capacity
256 GB
Card reader integrated
Yes
Compatible memory cards
SD
Discrete graphics card
No
On-board graphics card
Yes
On-board graphics card model
Intel® HD Graphics 630
On-board graphics card base frequency
350 MHz
On-board graphics card dynamic frequency (max)
1100 MHz
Maximum on-board graphics card memory
64 GB
On-board graphics card DirectX version
12.0
On-board graphics card OpenGL version
4.4
On-board graphics card ID
0x5912
Motherboard chipset
Intel® H270
Intel Stable Image Platform Program (SIPP)
Yes
Processor package size
37.5 x 37.5 mm
Intel Stable Image Platform Program (SIPP) version
1.00
Processor ARK ID
97121
Camera, image & video7 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Camera, image & video
Built-in camera
Yes
Camera resolution
1280 x 720 pixels
Intel® Quick Sync Video Technology
Yes
Intel® Clear Video HD Technology (Intel® CVT HD)
Yes
Intel Clear Video Technology
Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)
Yes
HP front camera
HP Webcam
Connections & wireless7 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Connections & wireless
SSD interface
NVMe 3.0, PCI Express
Ethernet LAN data rates
10,100,1000 Mbit/s
Ethernet LAN (RJ-45) ports
1
USB 2.0 ports quantity
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
DisplayPort connections
1
Combo headphone/mic port
Yes
Power & battery1 detail
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Power & battery
AC adapter power
90 W
Design & dimensions11 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Design & dimensions
Intel Virtualization Technology for Directed I/O (VT-d)
Yes
Intel Secure Key Technology version
1.00
Intel Virtualization Technology (VT-x)
Yes
Intel TSX-NI version
1.00
HP Management tools
HP Client Catalog; HP SoftPaq Download Manager (SDM); HP System Software Manager (SSM); HP BIOS Config Utility (BCU); HP MIK for Microsoft SCCM
Pen included
No
Sustainability certificates
ENERGY STAR
Mouse included
Yes
3D
No
Autonomy mode
No
Packaging & supplied accessories1 detail
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Packaging & supplied accessories
Country of origin
China
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
