HP 2ZE66EA

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HP ProOne 400 G3 20-inch Non-Touch All-in-One PC reviews

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HP ProOne 400 G3 20-inch Non-Touch All-in-One PC
Pictured: 2ZE66EA · Image supplied through Icecat.
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COR Score

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Compare HP ProOne 400 G3 20-inch Non-Touch All-in-One PC reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.

Manufacturer code2ZE66EA

4 model options — compare versions

Specifications, review scores and prices belong to each exact model.

The product, explained

About the HP ProOne 400 G3 20-inch Non-Touch All-in-One PC

HP 2ZE66EA 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: 128 GB; operating system installed: Windows 10 Home. This entry covers manufacturer code 2ZE66EA. Specifications relate to this exact source record; other editions or packages may differ.

This configuration lists 4 GB of memory and 128 GB of storage. Memory supports active applications; storage holds software and files. Check upgradeability separately, because a capacity figure does not establish whether either component can be replaced.

Processor family
Intel® Core™ i5
Processor model
i5-7500T
Memory (RAM)
4 GB
Total storage capacity
128 GB
Storage media
SSD
Operating system installed
Windows 10 Home

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8/ 104.00/ 5

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Know exactly what you’re buying

HP ProOne 400 G3 20-inch Non-Touch All-in-One PC specifications

Manufacturer code: 2ZE66EA · Icecat product 39639360 · Checked 20 Sep 2026. Specifications belong to this exact model.

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 familyIntel® Core™ i5
Processor modeli5-7500T
Memory (RAM)4 GB
Total storage capacity128 GB
Storage mediaSSD
Operating system installedWindows 10 Home
Discrete graphics card modelNot available
Ethernet LANYes

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 frequency1.7 GHz
Built-in speakersYes
Rated audio power (RMS)2 W
Microphone inNo
HP speaker typeHP Dual Speakers
Display8 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Display
Screen size50.8 cm (20")
Screen resolution1600 x 900 pixels
TouchscreenNo
Display surfaceMatt
Screen shapeFlat
Colour gamut72%
Number of displays supported (on-board graphics)3
Detachable displayNo
Processor, memory & storage42 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Processor, memory & storage
Processor manufacturerIntel
Processor generation7th gen Intel® Core™ i5
Processor cores4
Processor threads4
Processor boost frequency3.3 GHz
Processor frequency2.7 GHz
Processor cache6 MB
Processor cache typeSmart Cache
Processor socketLGA 1151 (Socket H4)
Processor lithography14 nm
Processor operating modes64-bit
Processor codenameKaby Lake
Maximum internal memory supported by processor64 GB
Conflict-Free processorYes
Memory types supported by processorDDR3L-SDRAM, DDR4-SDRAM
Memory clock speeds supported by processor1333,1600,2133,2400 MHz
Memory channels supported by processorDual
ECC supported by processorNo
Memory voltage supported by processor1.35 V
Internal memory typeDDR4-SDRAM
Maximum internal memory32 GB
Memory slots2
Memory slots typeSO-DIMM
Memory clock speed2400 MHz
Memory layout (slots x size)1 x 4 GB
SSD capacity128 GB
Card reader integratedYes
Compatible memory cardsSD
Discrete graphics cardNo
On-board graphics cardYes
On-board graphics card modelIntel® HD Graphics 630
On-board graphics card base frequency350 MHz
On-board graphics card dynamic frequency (max)1100 MHz
Maximum on-board graphics card memory64 GB
On-board graphics card DirectX version12.0
On-board graphics card OpenGL version4.4
On-board graphics card ID0x5912
Motherboard chipsetIntel® H270
Intel Stable Image Platform Program (SIPP)Yes
Processor package size37.5 x 37.5 mm
Intel Stable Image Platform Program (SIPP) version1.00
Processor ARK ID97121
Camera, image & video6 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Camera, image & video
Built-in cameraYes
Intel® Quick Sync Video TechnologyYes
Intel® Clear Video HD Technology (Intel® CVT HD)Yes
Intel Clear Video TechnologyYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Yes
HP front cameraHP Webcam
Connections & wireless7 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Connections & wireless
SSD interfaceSATA
Ethernet LAN data rates10,100,1000 Mbit/s
Ethernet LAN (RJ-45) ports1
USB 2.0 ports quantity2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
DisplayPort connections1
Combo headphone/mic portYes
Power & battery1 detail
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Power & battery
AC adapter power90 W
Design & dimensions10 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Design & dimensions
RGB colour spaceNTSC
Thermal Design Power (TDP)35 W
Product colourBlack
Product typeAll-in-One PC
Intel® Identity Protection Technology (Intel® IPT)Yes
Intel Identity Protection Technology version1.00
Width (with stand)497.7 mm
Depth (with stand)347 mm
Height (with stand)58 mm
Weight (with stand)5.51 kg
Software & compatibility3 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Software & compatibility
Operating system architecture64-bit
Intel Software Guard Extensions (Intel SGX)Yes
Supported instruction setsAVX 2.0
Further product details40 details
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Further product details
HD typeHD+
LED backlightYes
Native aspect ratio16:9
System bus rate8 GT/s
PCI Express slots version3.0
Bus typeDMI3
Maximum number of PCI Express lanes16
PCI Express configurations2x8, 1x8+2x4
Tjunction80 °C
Total SSDs capacity128 GB
Number of SSDs installed1
Optical drive typeDVD Super Multi
Intel® Turbo Boost Technology2.0
Intel® Hyper Threading Technology (Intel® HT Technology)No
Enhanced Intel SpeedStep TechnologyYes
Intel® InTru™ 3D TechnologyYes
Intel® AES New Instructions (Intel® AES-NI)Yes
Intel Trusted Execution TechnologyYes
Intel Enhanced Halt StateYes
Intel VT-x with Extended Page Tables (EPT)Yes
Intel® Secure KeyYes
Intel TSX-NIYes
Intel® OS GuardYes
Intel 64Yes
Execute Disable BitYes
Idle StatesYes
Thermal Monitoring TechnologiesYes
Scalability1S
CPU configuration (max)1
Embedded options availableYes
Thermal solution specificationPCG 2015A
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel Secure Key Technology version1.00
Intel Virtualization Technology (VT-x)Yes
Intel TSX-NI version1.00
HP Management toolsHP Client Catalog; HP SoftPaq Download Manager (SDM); HP System Software Manager (SSM); HP BIOS Config Utility (BCU); HP MIK for Microsoft SCCM
Pen includedNo
Sustainability certificatesENERGY STAR
Mouse includedYes
Autonomy modeNo
Packaging & supplied accessories1 detail
HP ProOne 400 G3 20-inch Non-Touch All-in-One PC — Packaging & supplied accessories
Country of originChina

Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.

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Your questions, answered

HP ProOne 400 G3 20-inch Non-Touch All-in-One PC FAQs

How many expert reviews are available for HP ProOne 400 G3 20-inch Non-Touch All-in-One PC?

No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.

What is the COR Score for HP ProOne 400 G3 20-inch Non-Touch All-in-One PC?

The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.

Which exact version does this page cover?

This page identifies HP ProOne 400 G3 20-inch Non-Touch All-in-One PC using manufacturer code 2ZE66EA. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.

What is the listed processor family for HP ProOne 400 G3 20-inch Non-Touch All-in-One PC?

The source specification records processor family as Intel® Core™ i5. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.

What is the listed processor model for HP ProOne 400 G3 20-inch Non-Touch All-in-One PC?

The source specification records processor model as i5-7500T. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.

Where can I compare prices for HP ProOne 400 G3 20-inch Non-Touch All-in-One PC?

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Can I upgrade any desktop?

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Does a larger power supply use more electricity?

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How should I use the specifications alongside reviews?

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