Easy to deploy, sleek, and feature-rich, the HP ProOne 400 20” All-in-One PC with business-class collaboration, optional touch, manageability, and security features is a sound investment.Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro 64)
Stylish design, edge-to-edge glass, extensive cable management and clean lines makes this AiO suitable for a front desk or an open office for space-constrained work environments.
New 7th Gen Intel® Core™ processors bring high end processing power to the AiO that evokes tower-like performance.
Interact naturally with your PC using optional ten-point capacitive touch and Cortana on Windows 10 Pro.1 Enjoy impressive collaboration tools like optional Skype for Business™ 4, HP Noise Cancellation, and a 1 MP HD webcam.
Let nothing stand in your way
Be productive in any situation. Windows 10 Pro and powerful security, collaboration, and connectivity features from HP help you power through your day on the HP ProOne 400 AiO.
Super secure. Super protected
Guard your data, device and identity with HP Client Security Suite Gen3.
Work without interruption
Keep productivity high and downtime low with HP BIOSphereGen3 firmware-level automation. Your PCs have extra protection thanks to automatic updates and security checks.
HP WorkWise is office intelligence rolled into one smartphone app.
Speed up the basics of IT management
The HP Manageability Integration Kit helps speed up image creation and management of hardware, BIOS, and security through Microsoft System Center Configuration Manager.
Maximise network performance
Greatly improve data, voice, and video communication transfer rates over challenged LAN and Wi-Fi networks.
Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro 64)
Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro)
(This system is preinstalled with Windows 7 Professional software and also comes with a license and media for Windows 10 Pro software. You may only use one version of the Windows software at a time. Switching between versions will require you to uninstall one version and install the other version. You must back up all data (files, photos, etc.) before uninstalling and installing operating systems to avoid loss of your data.)
7th Generation Intel® Core™ i5 processor
Intel® Core™ i5-7500T with Intel® HD Graphics 630 (2.7 GHz base frequency, up to 3.3 GHz with Intel® Turbo Boost, 6 MB cache, 4 cores)
HP Client Catalog
HP SoftPaq Download Manager (SDM)
HP System Software Manager (SSM)
HP BIOS Config Utility (BCU)
HP MIK for Microsoft SCCM
16 GB DDR4-2400 SDRAM (2 x 8 GB)
(Transfer rates up to 2400 MT/s.)
Internal drive bays
External drive bays
One slim ODD; One SD 3 card reader (optional)
1 TB 7200 rpm SATA
HP 9.5 mm Slim DVD-Writer
Display and graphics
20″ diagonal HD+ anti-glare WLED-backlit (1600 x 900)
Intel® HD Graphics 530
1 MP webcam with integrated dual array digital microphone, maximum resolution of 1280 x 720
Ports – Left:
1 headphone/microphone combo
2 USB 3.1 Gen 1 (1 charging)
Ports – Back:
2 USB 2.0
1 DisplayPort™ 1.2
1 serial and PS/2 ports combination
2 PS/2 (keyboard and mouse)
2 USB 3.1 Gen 1 (2 charging)
(1 serial and PS/2 ports combination and 2 PS/2 (keyboard and mouse) are optional.)
1 SD 3 media card reader
(1 M.2 slot for WLAN and 1 M.2 slot for storage)
Conexant CX5001 codec, 2 W internal speaker, microphone/headphone side port (3.5 mm), high performance integrated stereo speakers
LANRealtek RTL8111HSH-CG GbE
WLANIntel® Dual Band Wireless-AC 7265 802.11ac (2×2) and Bluetooth® 4.0 Combo
Power and operating requirements
ENERGY STAR® certified
90 W, up to 89% efficient, active PFC (external)
Dimensions and weight
Dimensions (W x D x H)
49.77 x 34.7 x 5.8 cm (19.6 x 13.69 x 2.31 in)
5.51 kg (12.15 lb)
(Without stand. Exact weight depends on configuration)
Power-on password (via BIOS)
Setup password (via BIOS)
Support for chassis padlocks and cable lock devices
Trusted Platform Module TPM 2.0 Embedded Security Chip (SLB9670 – Common Criteria EAL4+ Certified)
SATA 0,1 port disablement (via BIOS)
Serial, USB enable/disable (via BIOS)
Integrated hood sensor
HP ePrint Driver + JetAdvantage
HP Hotkey Support
HP Recovery Manager
HP Support Assistant
Native Miracast Support
HP USB Business Slim Keyboard
HP USB Optical Mouse
3 year (3-3-3) limited warranty and service offering includes 3 years of parts, labor and on-site repair. Includes free 24/7 telephone support.